Azimuthal-angle Observables in Inclusive Three-jet Production
|
|
- Luke Edwards
- 5 years ago
- Views:
Transcription
1 Azimuthal-angle Observables in Inclusive Three-jet Production & Universidad Autónoma de Madrid, E-89 Madrid, Spain. F. Caporale & Universidad Autónoma de Madrid, E-89 Madrid, Spain. F. G. Celiberto Dipartimento di Fisica, Università della Calabria & Istituto Nazionale di Fisica Nucleare, Gruppo Collegato di Cosenza, I-873 Arcavacata di Rende, Cosenza, Italy. D. Gordo Gómez & Universidad Autónoma de Madrid, E-89 Madrid, Spain. A. Sabio Vera & Universidad Autónoma de Madrid, E-89 Madrid, Spain. PoS(DIS17)7 We discuss the impact of corrections beyond the leading-logarithmic accuracy on some recently proposed LHC observables that are based on azimuthal-angle ratios in a kinematical setup that is an extension to the usual one for Mueller-Navelet jets, after requiring an extra tagged jet in central regions of rapidity. The corrections tend to be mild which suggests that these observables are an excellent way to probe the onset of BFKL effects at hadronic colliders. 5th International Workshop on Deep Inelastic Scattering and Related Topics 3-7 April 17 University of Birmingham, Birmingham, UK Speaker. La Caixa-Severo Ochoa Scholar. c Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives. International License (CC BY-NC-ND.).
2 1. Introduction In high energy scattering in Quantum Chromodynamics (QCD) the Balitsky-Fadin-Kuraev- Lipatov (BFKL) framework in the leading logarithmic (LLA) [1 ] and next-to-leading logarithmic (NLLA) approximation [7,8] are used for the resummation of large logarithms in the center-of-mass energy squared s An interesting case is Mueller-Navelet jets [9], configurations with two final state jets 1 with transverse momenta of similar sizes, k A,B, and a rapidity distance Y = ln(x 1 x s/(k A k B )) large. A number of studies [13 8] focused on the azimuthal angle (θ) behaviour of the two jets regards that the presence of decisive minijet activity in the rapidity space between these two outermost jets can be accounted for by a BFKL gluon Green function connecting the two jets. Moreover, it was shown [9, 3], that ratios of projections on azimuthal angle observables R m n = cos(mθ) / cos(nθ), (1.1) (where m,n are integers) are much more favourable quantities in the search for a clear signal of BFKL effects. The comparison of different NLLA calculations for these ratios R m n [31 35] against LHC experimental data has been promising. Along these lines, new observables were recently proposed for processes with three-jet [3,37] and four-jet final states [38,39] with the outermost jets having a large rapidity distance and any other tagged jet is to be found in more central regions of the detector. Here we will restrict the discussion to inclusive three-jet production assuming that the jets are connected in the t-channel via gluon Green s functions. The main idea presented in Refs. [3, 37] was to produce theoretical estimates for the ratios R MN PQ = cos(m θ 1)cos(N θ ) cos(pθ 1 )cos(qθ ) = C MN C PQ, (1.) where θ 1 is the azimuthal angle difference between the first and the second (central) jet, while, θ is the azimuthal angle difference between the second and the third jet. In this work, we show theoretical predictions for R 33 at NLLA, originally presented in []. We are interested in seeing whether we have large corrections once we consider the NLLA gluon Green s functions instead of the leading-logarithmic accuracy ones. Large corrections of that origin is not a surprising outcome for many BFKL-based calculations and they could potentially have a strong impact on the ratios R MN PQ, hence they need to be addressed. We assume for the outermost jet transverse momenta that ka min = 35 GeV, kb min = 5 GeV, ka max = kb max = GeV, whereas the transverse momentum of the central jet, k J, can live in three wide bins, that is, GeV < k J < 35GeV (bin-1), 35GeV < k J < GeV (bin-) and GeV < k J < 1GeV (bin-3). To quantify the difference between LLA and NLLA, we define δx(%) = ( res (LLA) res(blm 1) + res (BLM ) ) 1, (1.3) res (LLA) PoS(DIS17)7 1 Another interesting idea, suggested in [1] and investigated in [11,1], is the study of the production of two charged light hadrons, π ±, K ±, p, p, with large transverse momenta and well separated in rapidity. 1
3 where res (LLA) is the LLA result while res (BLM 1) and res (BLM ) are NLLA results in the BLM scheme [1] that differ in the renormalisation scale to give us a measure of the theoretical uncertainty.. Results R First we present results for R 33 as a function of the rapidity difference after integrating over a central jet rapidity bin, that is, after allowing for the central jet rapidity to take values in the range.5 < y J <.5, see Fig. 1. We use dashed lines to represent LLA results and a band for the NLLA results. The band is bounded by the res (BLM 1) and res (BLM ) results in thin continuous lines. The red curve and band are representing the LLA and NLLA results respectively for the central jet belonging to bin-1 the green curve and band for the central jet belonging to bin- and the blue curve and band are representing the LLA and NLLA results respectively for the central jet belonging to bin-3. We see that the NLLA corrections are mild. Moreover, we note that the overall picture does not change considerably when we go from LLA to NLLA. = = R = = PoS(DIS17)7 Figure 1: Y -dependence of the LLA (dashed lines) and NLLA (bands) results for R 33 with y J integrated over a central rapidity bin at s = 7 TeV (left) and s = 13 TeV (right). Next, in Fig., we allow for Y A (rapidity of the forward jet) and Y B (rapidity of the backward jet) to take values such that (YA min = 3) < Y A < (YA max =.7) and (YB min =.7) < Y B < (Y max B = 3). Furthermore, the rapidity of the central jet can take values in five distinct rapidity bins of unit width, that is, y i.5 < y J < y i +.5, with y i = { 1,.5,,.5,1}. Obviously, the ratios now are functions of y i, namely, PQ (y i) = Cinteg MN (y i) R MN C integ PQ (y i). (.1) We see that the y i -dependence of the three ratios is very weak. Moreover, the similarity between the s = 7 TeV and s = 13 TeV plots is more striking that in the Fig. 1 and the NLLA corrections seem even milder.
4 s = 7 TeV; k B min = 5 GeV; k J bin-1, bin-, bin-3 s = 13 TeV; k B min = 5 GeV; k J bin-1, bin-, bin-3 LLA LLA NLA MOM BLM NLA MOM BLM R 33 R y i y i Figure : y i -dependence of the LLA (dashed lines) and NLLA (bands) results for R 33 at s = 7 TeV (left) and s = 13 TeV (right). 3. Summary & Outlook We have shown some results from a first beyond the leading logarithmic accuracy work on generalised azimuthal-angle observables in inclusive three-jet production at the LHC within the BFKL formalism. In addition, for a proper study of the total corrections beyond the LLA, the NLO jet vertices need to be included and the NLLA gluon Green functions. Our most important conclusion in this work is that the corrections that come into play after considering NLLA gluon Green s functions are generally mild and the generalised ratio observables exhibit perturbative stability. Moreover, we note that the differences in the plots for 7 TeV to 13 TeV are small which suggests that these observables capture the crucial features of the BFKL dynamics with regard to the azimuthal behavior of the hard jets in hadronic inclusive three-jet production. We plan to compare our results here against theoretical estimates for these observables from fixed order calculations, the full BFKL Monte Carlo BFKLex [ 9] as well as from general-purpose Monte Carlos tools. PoS(DIS17)7 Acknowledgements This work was supported by the Spanish Research Agency (Agencia Estatal de Investigación) through the grant IFT Centro de Excelencia Severo Ochoa SEV GC and ASV acknowledge support from the MICINN, Spain, under contract FPA1-78-P. DGG is supported with a fellowship of the international programme La Caixa-Severo Ochoa. References [1] L. N. Lipatov, Sov. Phys. JETP 3 (198) 9 [Zh. Eksp. Teor. Fiz. 9 (198) 153]. [] I. I. Balitsky and L. N. Lipatov, Sov. J. Nucl. Phys. 8 (1978) 8 [Yad. Fiz. 8 (1978) 1597]. [3] E. A. Kuraev, L. N. Lipatov and V. S. Fadin, Sov. Phys. JETP 5 (1977) 199 [Zh. Eksp. Teor. Fiz. 7 (1977) 377]. [] E. A. Kuraev, L. N. Lipatov and V. S. Fadin, Sov. Phys. JETP (197) 3 [Zh. Eksp. Teor. Fiz. 71 (197) 8] [Erratum-ibid. 5 (1977) 199]. 3
5 [5] L. N. Lipatov, Sov. J. Nucl. Phys. 3 (197) 338 [Yad. Fiz. 3 (197) ]. [] V. S. Fadin, E. A. Kuraev and L. N. Lipatov, Phys. Lett. B (1975) 5. [7] V. S. Fadin and L. N. Lipatov, Phys. Lett. B 9 (1998) 17 [hep-ph/989]. [8] M. Ciafaloni and G. Camici, Phys. Lett. B 3 (1998) 39 [hep-ph/983389]. [9] A. H. Mueller and H. Navelet, Nucl. Phys. B 8 (1987) 77. [1] D. Y. Ivanov and A. Papa, JHEP 17, 5 (1) [arxiv:15.8 [11] F. G. Celiberto, D. Y. Ivanov, B. Murdaca and A. Papa, Phys. Rev. D 9, no. 3, 313 (1) doi:1.113/physrevd [arxiv:1.813 [1] F. G. Celiberto, D. Y. Ivanov, B. Murdaca and A. Papa, Eur. Phys. J. C 77, no., 38 (17) doi:1.11/epjc/s [arxiv: [13] V. Del Duca and C. R. Schmidt, Phys. Rev. D 9 (199) 51 [hep-ph/93119]. [1] W. J. Stirling, Nucl. Phys. B 3 (199) 5 [hep-ph/91]. [15] L. H. Orr and W. J. Stirling, Phys. Rev. D 5 (1997) 5875 [hep-ph/9759]. [1] J. Kwiecinski, A. D. Martin, L. Motyka and J. Outhwaite, Phys. Lett. B 51 (1) 355 [hep-ph/1539]. [17] J. R. Andersen et al. [Small x Collaboration], Eur. Phys. J. C 8, 53 () doi:1.11/epjc/s-15- [hep-ph/189]. [18] A. De Roeck et al., Eur. Phys. J. C, 55 (1) doi:1.11/epjc/s [arxiv:99.3 [19] M. Angioni,, J. D. Madrigal and A. Sabio Vera, Phys. Rev. Lett. 17, 1911 (11) [arxiv:11.17 [hep-th]]. [] F. Caporale, B. Murdaca, A. Sabio Vera and C. Salas, Nucl. Phys. B 875 (13) 13 [arxiv:135. [1] F. Caporale, D. Y. Ivanov, B. Murdaca and A. Papa, Nucl. Phys. B 877 (13) 73 [arxiv: PoS(DIS17)7 [] C. Marquet and C. Royon, Phys. Rev. D 79, 38 (9) [arxiv:7.39 [3] D. Colferai, F. Schwennsen, L. Szymanowski and S. Wallon, JHEP 11, (1) [arxiv:1.135 [] B. Ducloue, L. Szymanowski and S. Wallon, JHEP 135, 9 (13) [arxiv:13.71 [5] B. Ducloue, L. Szymanowski and S. Wallon, Phys. Lett. B 738, 311 (1) [arxiv: [] A. H. Mueller, L. Szymanowski, S. Wallon, B. W. Xiao and F. Yuan, JHEP 13, 9 (1) [arxiv: [7], arxiv:151.3 [hep-ph]. [8] K. Akiba et al. [LHC Forward Physics Working Group Collaboration], J. Phys. G 3, 111 (1) [arxiv: [9] A. Sabio Vera, Nucl. Phys. B 7 () 1 [hep-ph/5].
6 [3] A. Sabio Vera and F. Schwennsen, Nucl. Phys. B 77 (7) 17 [hep-ph/7158 [HEP-PH]]. [31] B. Ducloue, L. Szymanowski and S. Wallon, Phys. Rev. Lett. 11 (1) 83 [arxiv: [3] F. Caporale, D. Y. Ivanov, B. Murdaca and A. Papa, Eur. Phys. J. C 7 (1) 38 [arxiv: [33] F. Caporale, D. Y. Ivanov, B. Murdaca and A. Papa, Phys. Rev. D91 (15) 11, 119 [arxiv:15.71 [3] F. G. Celiberto, D. Yu. Ivanov, B. Murdaca and A. Papa, Eur. Phys. J. C 75 (15) 9 [arxiv: [35] F. G. Celiberto, D. Y. Ivanov, B. Murdaca and A. Papa, Eur. Phys. J. C 7, no., (1) doi:1.11/epjc/s [arxiv: [3] F. Caporale,, B. Murdaca and A. Sabio Vera, Phys. Rev. Lett. 11, no. 1, 11 (1) [arxiv: [37] F. Caporale, F. G. Celiberto,, D. Gordo Gomez and A. Sabio Vera, Nucl. Phys. B 91, 37 (1) doi:1.11/j.nuclphysb [arxiv: [38] F. Caporale, F. G. Celiberto, and A. S. Vera, Eur. Phys. J. C 7, no. 3, 15 (1) [arxiv: [39] F. Caporale, F. G. Celiberto,, D. Gordo Gómez and A. Sabio Vera, Eur. Phys. J. C 77, no. 1, 5 (17) doi:1.11/epjc/s z [arxiv:1.57 [] F. Caporale, F. G. Celiberto,, D. G. Gomez and A. Sabio Vera, Phys. Rev. D 95, no. 7, 77 (17) doi:1.113/physrevd [arxiv:11.58 [1] S.J. Brodsky, G.P. Lepage, P.B. Mackenzie, Phys. Rev. D 8, 8 (1983). [], M. Deak, A. Sabio Vera and P. Stephens, Nucl. Phys. B 89 (11) 8 [arxiv: [3] and A. Sabio Vera, Phys. Lett. B 79 (1) 31 [arxiv:111.1 [hep-th]]. [] and A. Sabio Vera, Phys. Lett. B 717 (1) 58 [arxiv:1.31 [hep-th]]. [5], A. Sabio Vera and C. Salas, Phys. Rev. D 87 (13) 1, 17 [arxiv: [] F. Caporale,, J. D. Madrigal, B. Murdaca and A. Sabio Vera, Phys. Lett. B 7 (13) 17 [arxiv: [hep-th]]. [7] and A. Sabio Vera, Phys. Rev. D 93, no. 7, 7 (1) [arxiv: [8] and A. Sabio Vera, JHEP 1 (1) [arxiv: [9] and A. Sabio Vera, Phys. Rev. D 9, no. 3, 319 (1) [arxiv:1.739 PoS(DIS17)7 5
arxiv: v1 [hep-ph] 29 Dec 2017
F. Caporale & Universidad Autónoma de Madrid, E-89 Madrid, Spain. E-mail: francesco.caporale@uam.es arxiv:181.1v1 [hep-ph] 9 Dec 17 F. G. Celiberto & Universidad Autónoma de Madrid, E-89 Madrid, Spain.
More informationarxiv: v3 [hep-ph] 29 Sep 2017
arxiv:79.28v3 [hep-ph] 29 Sep 27 Inclusive charged light di-hadron production at 7 and 3 TeV LHC in the full NLA BFKL approach F.G. Celiberto,2, D.u. Ivanov 3,4, B. Murdaca 2 and A. Papa,2 Dipartimento
More informationarxiv: v1 [hep-ph] 28 Jun 2016
BFKL effects and central rapidity dependence in Mueller-Navelet jet production at 3 TeV LHC arxiv:66.8892v [hep-ph] 28 Jun 26 Dipartimento di Fisica, Università della Calabria and Istituto Nazionale di
More informationProbing high energy effects in multijet production
Probing high energy effects in multijet production David Gordo Gómez david.gordo@csic.es Instituto de Física Teórica UAM/CSIC Madrid, Spain in collaboration with F. Caporale, F. Celiberto, G. Chachamis,
More informationMueller Navelet jets at LHC: a clean test of QCD resummation effects at high energy?
Mueller Navelet jets at LHC: a clean test of QCD resummation effects at high energy? LPT, Université Paris-Sud, CNRS, 945, Orsay, France E-mail: Bertrand.Ducloue@th.u-psud.fr Lech Szymanowski National
More informationAzimuthal angle decorrelation of Mueller Navelet jets at NLO
Azimuthal angle decorrelation of Mueller Navelet jets at NLO Physics Department, Theory Division, CERN, CH- Geneva 3, Switzerland E-mail: Agustin.Sabio.Vera@cern.ch F. Schwennsen II. Institut für Theoretische
More informationMueller-Navelet jets at LHC: the first complete NLL BFKL study
Mueller-Navelet jets at LHC: the first complete NLL BFKL study B. Ducloué LPT, Université Paris-Sud, CNRS, 945, Orsay, France E-mail: Bertrand.Ducloue@th.u-psud.fr L. Szymanowski National Center for Nuclear
More informationMueller-Navelet jets at LHC: an observable to reveal high energy resummation effects?
Mueller-Navelet jets at LHC: an observable to reveal high energy resummation effects? LPT, Université Paris-Sud, CNRS, 945, Orsay, France E-mail: Bertrand.Ducloue@th.u-psud.fr Lech Szymanowski National
More informationarxiv:hep-ph/ v1 29 Oct 2005
1 Electroproduction of two light vector mesons in next-to-leading BFKL D.Yu. Ivanov 1 and A. Papa arxiv:hep-ph/0510397v1 9 Oct 005 1 Sobolev Institute of Mathematics, 630090 Novosibirsk, Russia Dipartimento
More informationInclusive di-hadron production at 7 and 13 TeV LHC in the full NLA BFKL approach
Inclusive di-hadron production at 7 and 3 TeV LHC in the full NLA BFKL approach Francesco Giovanni Celiberto francescogiovanni.celiberto@fis.unical.it Università della Calabria - Dipartimento di Fisica
More informationMulti-jet production and jet correlations at CMS
Multi-jet production and jet correlations at Gábor I. Veres on behalf of the Collaboration CERN E-mail: gabor.veres@cern.ch Hadronic jet production at the LHC is an excellent testing ground for QCD. Essential
More informationViolation of a simple factorized form of QCD amplitudes and Regge cuts
Violation of a simple factorized form of QCD amplitudes and Regge cuts Author affiliation Budker Institute of Nuclear Physics of SD RAS, 630090 Novosibirsk Russia Novosibirsk State University, 630090 Novosibirsk,
More informationThe growth with energy of vector meson photo-production cross-sections and low x evolution
The growth with energy of vector meson photo-production cross-sections and low x evolution Departamento de Actuaria, Física y Matemáticas, Universidad de las Américas Puebla, Santa Catarina Martir, 78,
More informationPoS(DIS2014)064. Forward-Central Jet Correlations. Pedro Miguel RIBEIRO CIPRIANO, on behalf of CMS. DESY - CMS
DESY - CMS E-mail: pedro.cipriano@desy.de The azimuthal correlation between forward and central jets has been measured in proton proton collisions at the LHC, at the centre-of-mass energy of 7 TeV. The
More informationSingle inclusive jet production at very forward rapidity in proton-proton collisions with s = 7 and 13 TeV
production at very forward rapidity in proton-proton collisions with s = 7 and ev Instytut izyki Jadrowej, Radzikowskiego, - Krakow, Poland E-mail: krzysztof.kutak@ifj.edu.pl Hans Van Haevermaet Particle
More informationarxiv:hep-ph/ v1 22 Dec 1999
DTP/99/4 DAMTP-999-79 Cavendish-HEP-99/9 BFKL Dynamics at Hadron Colliders arxiv:hep-ph/992469v 22 Dec 999 Carlo Ewerz a,b,, Lynne H. Orr c,2, W. James Stirling d,e,3 and Bryan R. Webber a,f,4 a Cavendish
More informationarxiv:hep-ph/ v1 13 Jan 2003
Preprint typeset in JHEP style - HYPER VERSION Cavendish HEP 2002 21 DAMTP 2002 154 IPPP/02/80 DCPT/02/160 arxiv:hep-ph/0301081v1 13 Jan 2003 Energy Consumption and Jet Multiplicity from the Leading Log
More informationMatching collinear and small x factorization calculations for inclusive hadron production in pa collisions
Matching collinear and small x factorization calculations for inclusive hadron production in pa collisions The Pennsylvania State University, Physics Department, University Park, PA 16802 H. Niewodniczański
More informationDouble parton scattering studies in CMS
CBPF-Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro, Brazil E-mail: gilvan@cern.ch he double parton scattering (DPS) process in proton-proton collisions at a center-of-mass energy of 7 and 3 ev
More informationResults from D0: dijet angular distributions, dijet mass cross section and dijet azimuthal decorrelations
Results from D: dijet angular distributions, dijet mass cross section and dijet azimuthal decorrelations Zdenek Hubacek Czech Technical University in Prague E-mail: zdenek.hubacek@cern.ch on behalf of
More informationPoS(DIS2014)183. Charmonium Production at ATLAS. S. Cheatham on behalf of the ATLAS Collaboration. McGill University
on behalf of the ATLAS Collaboration. McGill University E-mail: susan.cheatham@cern.ch Understanding of the production of P-wave charmonium states is a significant bottleneck in the understanding of charmonium
More informationarxiv: v1 [hep-ph] 10 Nov 2008
IPPP/08/83 DCPT/08/166 June 10, 2018 arxiv:0811.1481v1 [hep-ph] 10 Nov 2008 Diffractive processes at the LHC 1 A.D. Martin a,v.a. Khoze a,b and M.G. Ryskin a,b a Institute for Particle Physics Phenomenology,
More informationMeasurement of Charged Particle Spectra in Deep-Inelastic ep Scattering at HERA
Measurement of Charged Particle Spectra in Deep-Inelastic ep Scattering at HERA Alexander BYLINKIN ( Institute for Theoretical and Experimental Physics (ITEP), Moscow, Russia) E-mail: alexander.bylinkin@gmail.com
More informationPoS(DIS2017)208. Nuclear PDF studies with proton-lead measurements with the ALICE detector
Nuclear PDF studies with proton-lead measurements with the ALICE detector a,b for the ALICE Collaboration a Institute for Subatomic Physics, Department for Physics and Astronomy and EMMEφ, Faculty of Science,
More informationBFKL evolution and the growth with energy of exclusive J/Ψ and Υ photo-production cross-sections
BFKL evolution and the growth with energy of exclusive J/Ψ and Υ photo-production cross-sections I. Bautista, A. Fernandez Tellez and M. Hentschinski, arxiv:67.53v [hep-ph] 6 Nov 6 Facultad de Ciencias
More informationAGH-UST University of Science and Technology, Faculty of Physics and Applied Computer Science, Krakow, Poland
Central Exclusive Production at LHCb AGH-UST University of Science and Technology, Faculty of Physics and Applied Computer Science, Krakow, Poland E-mail: brachwal@agh.edu.pl The LHCb detector, with its
More informationMeasurements of charm and beauty proton structure functions F2 c c and F2 b b at HERA
Measurements of charm and beauty proton structure functions F c c and F b b at HERA Vladimir Chekelian MPI for Physics, Germany E-mail: shekeln@mail.desy.de Inclusive charm and beauty production is studied
More informationMeasurements of Proton Structure at Low Q 2 at HERA
Measurements of Proton Structure at Low Q 2 at HERA Victor Lendermann Kirchhoff-Institut für Physik, Universität Heidelberg Im Neuenheimer Feld 227, 69120 Heidelberg Germany Abstract. Inclusive ep scattering
More informationOne-loop amplitudes with off-shell gluons
Institute of Nuclear Physics Polish Academy of Sciences, PL-31342 Kraków, Poland E-mail: hameren@ifj.edu.pl I report on recent progress in the calculation of cross sections within factorization prescriptions
More informationRecent STAR Jet Results of the High-Energy Spin Physics Program at RHIC
Recent STAR Jet Results of the High-Energy Spin Physics Program at RHIC Daniel L. Olvitt Jr. Temple University E-mail: daniel.olvitt@temple.edu The production of jets from polarized proton+proton collisions
More informationConstraining the pomeron structure using LHC data
CEA Saclay - Irfu/SPP E-mail: matthias.saimpert@cea.fr Cyrille Marquet Centre de physique théorique, École Polytechnique, CNRS, 9118 Palaiseau, France E-mail: cyrille.marquet@cern.ch Christophe Royon CEA
More informationarxiv: v1 [hep-ph] 7 Jul 2015
arxiv:1507.01916v1 [hep-ph] 7 Jul 2015 Department of Physics and Astronomy, Iowa State University, Ames, Iowa, 50011, USA E-mail: tuchin@iastate.edu An essential part of experimental program at the future
More informationThe photon PDF from high-mass Drell Yan data at the LHC
The photon PDF from high-mass Drell Yan data at the LHC University of Oford E-mail: francesco.giuli@cern.ch In this contribution, we review the results of [1], where a determination of the photon PDF from
More informationInstitut fur Theoretische Teilchenphysik, Universitat Karlsruhe, D Karlsruhe, Germany
University of Wisconsin - Madison TTP96-24 MADPH-96-946 QCD Corrections to Jet Cross Sections in DIS June 1996 Erwin Mirkes a and Dieter Zeppenfeld b a Institut fur Theoretische Teilchenphysik, Universitat
More informationPoS(EPS-HEP2015)309. Electroweak Physics at LHCb
European Organisation for Nuclear Research (CERN), Switzerland E-mail: william.barter@cern.ch LHCb s unique forward acceptance allows for complementary measurements of electroweak boson production to those
More informationW, Z and top production measurements at LHCb
1 W, Z and top production measurements at LHCb Lorenzo Sestini, on behalf of the LHCb collaboration. Universitá di Padova e INFN E-mail: lorenzo.sestini@cern.ch The LHCb experiment offers a complementary
More informationarxiv: v1 [hep-ph] 22 Sep 2017
arxiv:709.0776v [hep-ph] 22 Sep 207 Institut für heoretische Physik, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Straße 9, D-4849 Münster, Germany E-mail: michael.klasen@uni-muenster.de We
More informationResults from combined CMS-TOTEM data
Department of Physics Engineering, Hacettepe University, Ankara, Turkey The University of Iowa, Iowa City, USA E-mail: Sercan.Sen@cern.ch The combined data taking of the CMS and TOTEM experiments allows
More informationThe Detector Design of the Jefferson Lab EIC
The Detector Design of the Jefferson Lab EIC Jefferson Lab E-mail: mdiefent@jlab.org The Electron-Ion Collider (EIC) is envisioned as the next-generation U.S. facility to study quarks and gluons in strongly
More informationTop production measurements using the ATLAS detector at the LHC
Top production measurements using the ATLAS detector at the LHC INFN, Sezione di Bologna and University of Bologna E-mail: romano@bo.infn.it This paper is an overview of recent results on top-quark production
More informationarxiv: v1 [hep-ex] 9 Jan 2019
Quarkonium production as a function of charged-particle multiplicity in pp and p Pb collisions measured by ALICE at the LHC arxiv:1901.02627v1 [hep-ex] 9 Jan 2019 Discipline of Physics, School of Basic
More informationDiffractive production of isolated photons with the ZEUS detector at HERA
Diffractive production of isolated photons with the ZEUS detector at HERA On behalf of the ZEUS Collaboration Tel Aviv University, Tel Aviv, Israel levyaron@post.tau.ac.il The photoproduction of isolated
More informationPoS(LHC07)034. Dijet correlations in pp collisions at RHIC
Institute of Nuclear Physics, PL-31-342 Cracow, Poland and University of Rzeszów, PL-35-959 Rzeszów, Poland E-mail: Antoni.Szczurek@ifj.edu.pl Anna Rybarska Institute of Nuclear Physics, PL-31-342 Cracow,
More informationPoS(Baldin ISHEPP XXI)032
Prompt photon and associated heavy quark production in the k T -factorization approach A.V. Lipatov, and N.P. Zotov Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University Moscow, Russia
More informationAssociated production with onia, double onia production at the LHC
Associated production with onia, double onia production at the LHC Lancaster University E-mail: e.bouhova@cern.ch The most recent results on associated production with onia and double onia production at
More informationarxiv: v1 [hep-ex] 8 Sep 2017
Quarkonium production in proton-proton collisions with ALICE at the LHC arxiv:1709.02545v1 [hep-ex] 8 Sep 2017, on behalf of the ALICE Collaboration, Laboratoire de Physique de Clermont (LPC), Université
More informationInstituto Galego de Física de Altas Enerxías (IGFAE), Universidade de Santiago de Compostela, E Galicia, Spain
The nuclear PDFs Kari J. Eskola Helsinki Institute of Physics, P.O. Box 64, FI-00014 University of Helsinki, E-mail: kari.eskola@jyu.fi Petja Paakkinen Helsinki Institute of Physics, P.O. Box 64, FI-00014
More informationOpportunities with diffraction
Opportunities with diffraction Krzysztof Golec-Biernat Institute of Nuclear Physics in Kraków IWHSS17, Cortona, 2 5 April 2017 Krzysztof Golec-Biernat Opportunities with diffraction 1 / 29 Plan Diffraction
More informationarxiv: v1 [nucl-ex] 7 Nov 2009
Low-x QCD at the LHC with the ALICE detector Magdalena Malek for the ALICE Collaboration arxiv:0911.1458v1 [nucl-ex] 7 Nov 2009 Institut de Physique Nucléaire d Orsay (IPNO) - France CNRS: UMR8608 - IN2P3
More informationarxiv: v1 [hep-ex] 18 Jul 2016
Top quark mass measurements with the experiment at the LHC arxiv:67.4972v [hep-ex] 8 Jul 26 Deutsches Elektronen-Synchrotron DESY E-mail: simon.spannagel@desy.de Measurements of the top quark mass are
More informationBeauty contribution to the proton structure function and charm results
and charm results Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati E-mail: andrea.longhin@lnf.infn.it Recent heavy quark production results in deep inelastic scattering and photoproduction
More informationPoS(DIS2017)295. Hadronic Higgs boson decay at order α 4 s and α 5 s
Institut für Theoretische Teilchenphysik, Karlsruhe Institute of Technology (KIT) 7618 Karlsruhe, Germany E-mail: joshua.davies@kit.edu Matthias Steinhauser Institut für Theoretische Teilchenphysik, Karlsruhe
More informationProbing BFKL dynamics, saturation and diffraction at hadronic colliders
Probing BFKL dynamics, saturation and diffraction at hadronic colliders 1 Christophe Royon University of Kansas, Lawrence, USA INT Workshop on Physics at the EIC, 10/0-11/16 018, Seattle Contents: Proton
More informationThe LHC p+pb run from the nuclear PDF perspective
Department of Physics, University of Jyväskylä, P.O. Box 35, FI-40014 University of Jyväskylä, Finland Helsinki Institute of Physics, University of Helsinki, P.O. Box 64, FI-00014, Finland E-mail: hannu.paukkunen@jyu.fi
More informationPoS(DIS2015)084. Saturation and geometrical scaling from small x deep inelastic ep scattering to high energy proton-proton and heavy ion collisions
Saturation and geometrical scaling from small x deep inelastic ep scattering to high energy proton-proton and heavy ion collisions M. Smoluchowski Institute of Physics, Jagiellonian University, ul. S.
More informationarxiv:hep-ph/ v1 2 Oct 2001
DESY 01-136 LUNFD6/(NFFL 7203) 2001 October 2001 Heavy Quark production at the TEVATRON and HERA using k t - factorization with CCFM evolution arxiv:hep-ph/0110034v1 2 Oct 2001 H. Jung Physics Department,
More informationSingle Higgs production at LHC as a probe for an anomalous Higgs self coupling
Single Higgs production at LHC as a probe for an anomalous Higgs self coupling Brookhaven National Laboratory E-mail: pgiardino@bnl.gov We explore the possibility of probing the trilinear Higgs self coupling
More informationMeasurement of t-channel single top quark production in pp collisions
Measurement of t-channel single top quark production in pp collisions (on behalf of the CMS collaboration) INFN-Napoli & Università della Basilicata E-mail: Francesco.Fabozzi@cern.ch Measurements of t-channel
More informationStudies of the diffractive photoproduction of isolated photons at HERA
Studies of the diffractive photoproduction of isolated photons at HERA P. J. Bussey School of Physics and Astronomy University of Glasgow Glasgow, United Kingdom, G12 8QQ E-mail: peter.bussey@glasgow.ac.uk
More informationOverview of the Higgs boson property studies at the LHC
Overview of the Higgs boson property studies at the LHC Giada Mancini, a, Roberto Covarelli b a LNF-INFN and University of Roma Tor Vergata, b INFN and University of Torino E-mail: giada.mancini@lnf.infn.it,
More informationForward physics with proton tagging at the LHC
Forward physics with proton tagging at the LHC Christophe Royon University of Kansas, Lawrence, USA LHC Forward Physics Workshop, March 0-3, Madrid, Spain QCD: structure of pomeron, jet gap jet Photon
More informationarxiv: v2 [hep-ph] 28 Jun 2016
Combining NNPDF3.0 and NNPDF2.3QED through the APFEL evolution code arxiv:606.0730v2 [hep-ph] 28 Jun 206 Rudolf Peierls Center for Theoretical Physics, Keble Road, University of Oford, OX 3NP Oford, United
More informationPion-nucleus Drell-Yan data as a novel constraint for nuclear PDFs
https://helda.helsinki.fi Pion-nucleus Drell-Yan data as a novel constraint for nuclear PDFs Paakkinen, P. 207 Paakkinen, P, Eskola, K J & Paukkunen, H 207, ' Pion-nucleus Drell-Yan data as a novel constraint
More informationDepartment of Physics and Astronomy 1082 Malott,1251 Wescoe Hall Dr. Lawrence, KS
Anomalous quartic γγγγ coupling studies using proton tagging at the LHC Department of Physics and Astronomy 8 Malott,5 Wescoe Hall Dr. Lawrence, KS 66045-758 E-mail: christophe.royon@ku.edu We describe
More informationGluon density and gluon saturation
Gluon density and gluon saturation Narodowe Centrum Nauki Krzysztof Kutak Supported by NCN with Sonata BIS grant Based on: Small-x dynamics in forward-central dijet decorrelations at the LHC A. van Hameren,
More informationPomeron intercepts at colliders
Pomeron intercepts at colliders arxiv:hep-ph/000395v 20 Mar 2000 R. Peschanski (SPhT) Ch. Royon (DAPNIA/SPP) Commissariat à l Energie Atomique, Saclay, F-99 Gif-sur-Yvette Cedex France June 5, 208 Abstract
More informationarxiv:hep-ph/ v1 15 Jul 1998
The DLLA limit of BFKL in the Dipole Picture arxiv:hep-ph/9807389v1 15 Jul 1998 M. B. Gay Ducati and V. P. Gonçalves Instituto de Física, Univ. Federal do Rio Grande do Sul Caixa Postal 15051, 91501-970
More informationStudy of Inclusive Jets Production in ep Interactions at HERA
HEP 003 Europhysics Conference in Aachen, Germany Study of Inclusive Jets Production in ep Interactions at HERA Mónica Luisa Vázquez Acosta Universidad Autónoma de Madrid On behalf of the ZEUS & H1 Collaborations
More informationarxiv: v1 [nucl-th] 25 Sep 2017
Nuclear Physics A (217) 1 1 Sub-leading correction of two-gluon rapidity correlations of strong colour field Ye-Yin Zhao, Ming-Mei Xu, Heng-Ying Zhang and Yuan-Fang Wu Key Laboratory of Quark and Lepton
More informationFERMI NATIONAL ACCELERATOR LABORATORY
FERMI NATIONAL ACCELERATOR LABORATORY arxiv:0908.1374v1 [hep-ex] 10 Aug 2009 TEVEWWG/WZ 2009/01 FERMILAB-TM-2439-E CDF Note 9859 D0 Note 5965 10 th August 2009 Updated Combination of CDF and D0 Results
More informationTwo Early Exotic searches with dijet events at ATLAS
ATL-PHYS-PROC-2011-022 01/06/2011 Two Early Exotic searches with dijet events at ATLAS University of Toronto, Department of Physics E-mail: rrezvani@physics.utoronto.ca This document summarises two exotic
More informationarxiv: v1 [hep-ex] 18 Nov 2010
PDF sensitivity studies using electroweak processes at LHCb arxiv:1011.4260v1 [hep-ex] 18 Nov 2010 University College Dublin E-mail: francesco.de.lorenzi@cern.ch We describe parton density function sensitivity
More informationTransverse Energy-Energy Correlations in Next-to-Leading Order in α s at the LHC
Transverse Energy-Energy Correlations in Next-to-Leading Order in α s at the LHC Deutsches Elektronen-Synchrotron DESY, D-2267 Hamburg, Germany E-mail: ahmed.ali@desy.de This contribution summarizes the
More informationThe Compact Muon Solenoid Experiment. Conference Report. Mailing address: CMS CERN, CH-1211 GENEVA 23, Switzerland
Available on CMS information server CMS CR -2017/094 The Compact Muon Solenoid Experiment Conference Report Mailing address: CMS CERN, CH211 GENEVA 23, Switzerland 18 March 2017 (v3, 20 March 2017) Recent
More informationDIFFRACTIVE DIJET PHOTOPRODUCTION AND THE OFF-DIAGONAL GLUON DISTRIBUTION a
DIFFRACTIVE DIJET PHOTOPRODUCTION AND THE OFF-DIAGONAL GLUON DISTRIBUTION a K. GOLEC BIERNAT,,J.KWIECIŃSKI, A.D.MARTIN Department of Physics, University of Durham, Durham DH LE, England H. Niewodniczański
More informationPoS(CKM2016)117. Recent inclusive tt cross section measurements. Aruna Kumar Nayak
Recent inclusive tt cross section measurements Institute of Physics, Bhubaneswar, India E-mail: Aruna.Nayak@cern.ch Results of the recent measurements for the inclusive tt production cross section in the
More informationPoS(DIFF2006)005. Inclusive diffraction in DIS H1 Results. Paul Laycock
University of Liverpool Oliver Lodge Laboratory, Department of Physics, Oxford St. Liverpool L69 7ZE, United Kingdom E-mail: laycock@mail.desy.de Results are presented of three analyses on the diffractive
More informationCOMPASS Measurements of Asymmetry Amplitudes in the Drell-Yan Process Observed from Scattering Pions off a Transversely Polarized Proton Target
COMPASS Measurements of Asymmetry Amplitudes in the Drell-Yan Process Observed from Scattering Pions off a Transversely Polarized Proton Target University of Illinois E-mail: rsheitz2@illinois.edu On behalf
More informationarxiv:hep-ph/ v2 22 Oct 2001
DESY 01-136 LUNFD6/(NFFL 7203) 2001 hep-ph/0110034 October 2001 arxiv:hep-ph/0110034v2 22 Oct 2001 Heavy Quark production at the TEVATRON and HERA using k t - factorization with CCFM evolution H. Jung
More informationMeasurement of photon production cross sections also in association with jets with the ATLAS detector
Nuclear and Particle Physics Proceedings 00 (07) 6 Nuclear and Particle Physics Proceedings Measurement of photon production cross sections also in association with jets with the detector Sebastien Prince
More informationPoS(RAD COR 2007)030. Three-jet DIS final states from k -dependent parton showers. F. Hautmann University of Oxford
OUTP-8--P Three-jet DIS final states from k -epenent parton showers University of Oxfor E-mail: hautmann@thphys.ox.ac.uk H. Jung DESY E-mail: jung@mail.esy.e Experimental measurements of angular correlations
More informationPoS(DIS 2010)071. Diffractive electroproduction of ρ and φ mesons at H1. Xavier Janssen Universiteit Antwerpen
Diffractive electroproduction of ρ and φ mesons at Universiteit Antwerpen E-mail: xavier.janssen@ua.ac.be Diffractive electroproduction of ρ and φ mesons is measured at HERA with the detector in the elastic
More informationSearch for top squark pair production and decay in four bodies, with two leptons in the final state, at the ATLAS Experiment with LHC Run2 data
Search for top squark pair production and decay in four bodies, with two leptons in the final state, at the ATLAS Experiment with LHC Run data Marilea Reale INFN Lecce and Università del Salento (IT) E-mail:
More informationThe role of intrinsic charm in the proton via photon production in association with a charm quark
The role of intrinsic charm in the proton via photon production in association with a charm quark S. Rostami Physics Department, Semnan University, Semnan, Iran E-mail: asalrostami.phy@gmail.com Physics
More informationPoS(ICHEP 2010)170. D +, D 0 and Λ + c production in deep inelastic scattering at HERA
D +, D and Λ + c production in deep inelastic scattering at HERA ab a Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, D-67 Hamburg, Germany b University of Hamburg, Institute of Experimental Physics,
More informationTop quark pair properties in the production and decays of t t events at ATLAS
ATL-PHYS-PROC-214-72 11 July 214 Top quark pair properties in the production and decays of t t events at DESY, Hamburg Universität Wuppertal E-mail: ralph.schaefer@cern.ch In proton-proton collisions at
More informationImproving the kinematics in BK/BFKL to resum the dominant part of higher orders
Improving the kinematics in BK/BFKL to resum the dominant part of higher orders Guillaume Beuf Brookhaven National Laboratory QCD Evolution Workshop: from collinear to non collinear case Jefferson Lab,
More informationHighlights of top quark measurements in hadronic final states at ATLAS
Highlights of top quark measurements in hadronic final states at ATLAS Serena Palazzo 1,2,, on behalf of the ATLAS Collaboration 1 Università della Calabria 2 INFN Cosenza Abstract. Measurements of inclusive
More informationNonperturbative QCD in pp scattering at the LHC
Nonperturbative QCD in pp scattering at the LHC IX Simpósio Latino Americano de Física de Altas Energias SILAFAE Jochen Bartels, Hamburg University and Universidad Tecnica Federico Santa Maria Introduction:
More informationA Framework for High Energy Factorisation matched to Parton Showers
A Framework for High Energy Factorisation matched to Parton Showers Marcin Bury E-mail: marcin.bury@ifj.edu.pl Andreas van Hameren E-mail: hameren@ifj.edu.pl Hannes Jung DESY, Hamburg, Germany E-mail:
More informationResumming large collinear logarithms in the non-linear QCD evolution at high energy
Resumming large collinear logarithms in the non-linear QCD evolution at high energy Institut de physique théorique, Université Paris Saclay, CNRS, CEA, F-91191 Gif-sur-Yvette, France E-mail: edmond.iancu@cea.fr
More informationarxiv: v1 [hep-ph] 11 Nov 2010
UHE neutrinos: higher twists, scales, saturation 1 arxiv:1011.2611v1 [hep-ph] 11 Nov 2010 R. Fiore 1 and V.R. Zoller 2 1 Dipartimento di Fisica, Università della Calabria and Istituto Nazionale di Fisica
More informationPoS(Confinement X)171
in pp collisions at LHC energies Institute for Particle and Nuclear Physics, Wigner RCP, HAS 2 Budapest, XII. Konkoly Thege Miklos ut 29-33 E-mail: sona.pochybova@cern.ch With increasing luminosities at
More informationA proposed very high energy electron proton collider, VHEeP
A proposed very high energy electron proton collider, VHEeP UCL, London, UK E-mail: m.wing@ucl.ac.uk A. Caldwell Max Planck Institute for Physics, Munich, Germany E-mail: caldwell@mpp.mpg.de The possibility
More informationVittorio Del Duca and Carl R. Schmidt. Stanford Linear Accelerator Center Stanford University, Stanford, California ABSTRACT
6228 March 1, 2001 (T/E) Minijet Corrections to Higgs Production arxiv:hep-ph/9305346 28 May 1993 Vittorio Del Duca and Carl R. Schmidt Stanford Linear Accelerator Center Stanford University, Stanford,
More informationProbing small-x gluons in hadrons and nuclei. Kazuhiro Watanabe. Old Dominion University. Jan 4, 2017 Jefferson Lab
Probing small-x gluons in hadrons and nuclei Kazuhiro Watanabe Old Dominion University Jan 4, 2017 Jefferson Lab Kazuhiro Watanabe (ODU) Probing gluon saturation dynamics at small-x Jan 4, 2017 1 / 16
More informationMuon reconstruction performance in ATLAS at Run-2
2 Muon reconstruction performance in ATLAS at Run-2 Hannah Herde on behalf of the ATLAS Collaboration Brandeis University (US) E-mail: hannah.herde@cern.ch ATL-PHYS-PROC-205-2 5 October 205 The ATLAS muon
More informationMeasurements of the elastic, inelastic and total cross sections in pp collisions with ATLAS subdetectors
Measurements of the elastic, inelastic and total cross sections in pp collisions with ATLAS subdetectors 1 On behalf of the ATLAS collaboration University of Bologna Viale Berti Pichat 6/2,40127 Bologna,
More informationIdentification of the Higgs boson produced in association with top quark pairs in proton-proton
Identification of the Higgs boson produced in association with top quark pairs in proton-proton collision: an analysis of the final state containing three leptons with the ATLAS detector Valentina Vecchio,
More informationarxiv: v1 [hep-ph] 29 Jun 2016
: a web-based application for specialized minimal parton distribution functions arxiv:1606.09248v1 [hep-ph] 29 Jun 2016 Theoretical Physics Department, CERN, Geneva Switzerland E-mail: stefano.carrazza@cern.ch
More information