Status of the data analysis on KK pair production
|
|
- Priscilla Bates
- 5 years ago
- Views:
Transcription
1 Status of the data analysis on KK pair production Alexey Dzyuba (PNPI, Gatchina) for the ANKE collaboration Scalar mesons a 0 /f 0 (980) Scientific program ANKE spectrometer pp dk + K 0 pn dk + K - dd 4 HeK + K -
2 Scalar mesons a 0 /f 0 (980) Masses around KK threshold Widths ~ MeV Unknown nature: qq-state ('true' meson) tetraquark KK-molecule Alexey CGSWHP
3 COoler SYnchrotron Protons and deuterons Polarized and unpolarized Momentum up to 3700 MeV/c Internal and external experiments ANKE best kaons identification WASA neutral channels Alexey CGSWHP
4 a 0 /f 0 (980) production at ANKE and WASA Reaction Production Experiment T beam, GeV Status pp d K + K 0 a 0 + =1) ANKE V.Kleber et. at. PRL 91 (2003) 377 Paper accepted pn d K + K - pp pp K + K - 0 f 0 /a 0 =0,1) ANKE 2.65 analysis in progress dd 4 He K + K - f 0 =0) ANKE 2.28 analysis started 4 He π 0 η a 0 0 =0, I fin =1) WASA Alexey CGSWHP
5 a 0 /f 0 (980) production at ANKE and WASA Reaction Production Experiment T beam, GeV Status pp d K + K 0 a 0 + =1) ANKE V.Kleber et. at. PRL 91 (2003) 377 Paper accepted pn d K + K - pp pp K + K - 0 f 0 /a 0 =0,1) ANKE 2.65 analysis in progress dd 4 He K + K - f 0 =0) ANKE 2.28 analysis started 4 He π 0 η a 0 0 =0, I fin =1) WASA Alexey CGSWHP
6 a 0 /f 0 (980) production at ANKE and WASA Reaction Production Experiment T beam, GeV Status pp d K + K 0 a 0 + =1) ANKE V.Kleber et. at. PRL 91 (2003) 377 Paper accepted pn d K + K - pp pp K + K - 0 f 0 /a 0 =0,1) ANKE 2.65 analysis in progress dd 4 He K + K - f 0 =0) ANKE 2.28 analysis started 4 He π 0 η a 0 0 =0, I fin =1) WASA Alexey CGSWHP
7 a 0 /f 0 (980) production at ANKE and WASA Reaction Production Experiment T beam, GeV Status pp d K + K 0 a 0 + =1) ANKE V.Kleber et. at. PRL 91 (2003) 377 Paper accepted pn d K + K - pp pp K + K - 0 f 0 /a 0 =0,1) ANKE 2.65 analysis in progress dd 4 He K + K - f 0 =0) ANKE 2.28 analysis started 4 He π 0 η a 0 0 =0, I fin =1) WASA Alexey CGSWHP
8 Apparatus for Nucleonic and Kaon Ejectiles Alexey CGSWHP
9 pp dk + K Alexey CGSWHP
10 pp dk + K 0 (Tp=2.83 GeV) K 0 dk + coincidence measurements Γ = 27 MeV/c 2 ~2000 ev. Identification via TOF, E and momenta K 0 via missing mass spectrum Background subtraction Kinematical fit ( m(kk)= MeV/c 2 ) ~10% bg Alexey CGSWHP
11 Differential distributions without acceptance corrections CMS q t (kaon) p (proton) k (deutron) (kaon) The transition matrix element under s- and p-waves assumption: M 2 = C 0 k k 2 + C 1 (p k) C 0 q q 2 + C 2 (p q) C 3 (k q) + C 4 (p k)(p q) Alexey CGSWHP
12 Acceptance Corrected Distributions M 2 = C 0 k k 2 + C 1 (p k) 2 + [(KK) S d] P [(KK) P d] S + C 0 q q 2 + C 2 (p q) C 3 (k q) + C 4 (p k)(p q) interference term Coefficients fix partial waves contributions: ~90% [(KK) s d] p (a 0+ -channel) ~10% [(KK) p d] s (only nonresonant) Alexey CGSWHP
13 Acceptance corrected Dalitz plot Alexey CGSWHP
14 Where is the a 0 + (980)? Different contribution (α) of Flatte (width 75 MeV) to [(KK) s d] p Different width of Flatte (α=100%) Alexey CGSWHP
15 Total cross-section pp dk + K 0 Q = 105 MeV : σ tot = (190 ± 4 stat ± 39 sys ) nb Q = 46 MeV : σ tot = (38 ± 2 stat ± 14 sys ) nb V.Kleber et al., PRL 91 (2003) Alexey CGSWHP
16 pn dk + K Alexey CGSWHP
17 pn dk + K - (Tp=2.65 GeV) possible a 0 /f 0 φ(see talk of I. Keshelashvilli) D 2 as an effective neutron target, unobserved «spectator» proton K + K - d coincidence measurements invariant mass spectrum of K + K - system Alexey CGSWHP
18 Rates expected from pp dk + K Alexey CGSWHP
19 Fit of differential distributions cut on M inv (K + K - ) < GeV/c 2 different assumption for M 2 : 1) M 2 = const [(KK) s d] s 2) M 2 as for pp: [(KK) s d] p and [(KK) p d] s 3) (1)+(2) two additional terms (is on this slide) 4) split Q on three part and make the fit (3) Only 4 th has a good χ 2 (< 2/ndf)! Alexey CGSWHP
20 dd 4 HeK + K Alexey CGSWHP
21 dd 4 HeK + K - (Td=2.28 GeV) ANKE@COSY f 0 K + K - N.N. Achasov et al., Phys. Lett. B 88, 367 (1979) C. Harnhard, Phys. Rept. 397, 155 (2004) Alexey CGSWHP
22 dd 4 HeK + K - (Td=2.28 GeV) 4 He selection in coincidence with pions: Setup: 4 weeks of beamtime in April 4 HeK + coincidence d and 4 He 4 He line Energy loss of 4 He in trigger 3 He Difficulties: Huge background Small total number of kaons First analysis: 3 He π ~5000 events 4 He π ~500 events 4 He 4 He after all cuts dk + 4 HeK + ~700 events 30 events Alexey CGSWHP
23 Summary pp dk + K 0 : data analysis is finished dominance of [(KK) s d] p term no evidence of the a 0+ (980) in M inv (KK) pn dk + K - : phi meson dominance σ(pn dk+ K - ) is the same order as σ(pp dk + K 0 ) differential spectra can be discribed by s- and p- waves dd 4 HeK + K 0 : huge background small number of 4 HeK + events Alexey CGSWHP
24 People A.Dzyuba, V.Koptev, S.Mikirtychiants PNPI, Gatchina, Russia M.Büscher, P.Fedorets, C.Hanhart, M.Hartmann, V.Hejny, S.Krewald, Y.Maeda, M.Nekipelov, H.Ströher IKP, FZ Jülich C.Wilkin University of London U.-G.Meiβ ner, V.Kleber, A.Sibirtsev Bonn University L.Kondratyuk, A.Kudryavtsev, V.Tarasov ITEP, Moscow, Russia V.Grishina INR, Moscow, Russia Experiment Theory and the ANKE collaboration This work is supported by DFG and COSY-FFE projects Alexey CGSWHP
25 Checking for the FSI effects Cuts on the dk + and dk invariant mass Alexey CGSWHP
26 Fit Results T p GeV GeV M 2 = C k2 + C (p k) 2 + C q2 + C (p q) 2 + 0k 1 0q 2 symbol squares circles [(KK) S d] P [(KK) P d] S interference + C 3 (k q) + C 4 (p k)(p q) term c 0 q c 0 k 0.89 fixed c 1 c 2 c 3 c 4 χ 2 /ndf ~ ~ Alexey CGSWHP
First experiments with the polarized internal gas target at ANKE/COSY
Mitglied der Helmholtz-Gemeinschaft First experiments with the polarized internal gas target at ANKE/COSY September 9, 2009 Maxim Mikirtychyants for the ANKE collaboration FZ Jülich / JCHP and PNPI (Gatchina)
More informationarxiv:hep-ph/ v1 10 Aug 2005
Extraction of the K K isovector scattering length from pp dk + K0 data near threshold arxiv:hep-ph/0508118v1 10 Aug 2005 M. Büscher 1, A. Dzyuba 2, V. Kleber 1, S. Krewald 1, R. H. Lemmer 1, 3, and F.
More informationGeneral Introductory Remarks. gamardshoba. me war germaniidan CGSWHP 04. Forschungszentrum Jülich in der Helmholtz-Gemeinschaft
General Introductory Remarks gamardshoba me mkwia me war germaniidan me wmuschaob Hans Ströher FZ Jülich CGSWHP 04 Forschungszentrum Jülich in der Helmholtz-Gemeinschaft General Introductory Remarks CGSWHP
More informationIMP's activities in COSY programs and the extension to HPLUS
2nd WHAT @ Beijing, July 2010 IMP's activities in COSY programs and the extension to HPLUS Xiaohua Yuan Institute of Modern Physics (IMP) - CAS, Lanzhou 73000 & Institut für Kernphysik, Forschungszentrum
More informationStrangeness production in selected proton-induced processes at COSY-ANKE
Mitglied der Helmholtz-Gemeinschaft Strangeness production in selected proton-induced processes at COSY-ANKE Ph.D. Dissertation Defense QiujianYe Nov.11 th 2013 Mitglied der Helmholtz-Gemeinschaft Outline
More informationPoS(INPC2016)282. Meson Production In p-d Fusion To 3 HeX At Proton Beam Momenta Between pp = 1.60 GeV/c And pp = 1.74 GeV/c With WASA-at-COSY
Meson Production In p-d Fusion To 3 HeX At Proton Beam Momenta Between pp = 1.60 GeV/c And pp = 1.74 GeV/c With WASA-at-COSY WWU Münster / WASA-at-COSY Collaboration E-mail: n_hues02@uni-muenster.de Florian
More informationarxiv:nucl-ex/ v1 19 Jan 2004
Energy dependence of the Λ/Σ 0 production cross section ratio in p p interactions. arxiv:nucl-ex/040020v 9 Jan 2004 P. Kowina, H.-H. Adam, A. Budzanowski, R. Czyżykiewicz, D. Grzonka, M. Janusz, L. Jarczyk,
More informationSTUDY OF THE NEAR THRESHOLD TOTAL CROSS SECTIONS FOR THE QUASI-FREE pn pnη REACTION WITH THE COSY-11 DETECTOR
STUDY OF THE NEAR THRESHOLD TOTAL CROSS SECTIONS FOR THE QUASI-FREE pn pnη REACTION WITH THE COSY-11 DETECTOR Joanna Klaja, Pawe l Moskal,$, Jaros law Zdebik on behalf of the COSY 11 collaboration Institute
More informationABC Effect in Double Pionic Fusion
Fachbereich Physik CERN Courier September 2011 BLINDBILD ABC Effect in Double Pionic Fusion Facets of Strong-Interaction Physics Hirschegg Jan. 15 21, 2012 Heinz Clement Outline Two-Pion Production in
More informationarxiv:hep-ph/ v2 24 Mar 2006
Extraction of the K K isovector scattering length from pp dk + K0 data near threshold arxiv:hep-ph/0508118v2 24 Mar 2006 R. H. Lemmer Institut für Kernphysik, Forschungszentrum Jülich, D 52425 Jülich,
More informationStrangeness photoproduction at the BGO-OD experiment
Strangeness photoproduction at the BGO-OD experiment Tom Jude On behalf of the BGO-OD Collaboration University of Bonn Supported by the DFG / SFB tr-16 NSTAR 215 Tom Jude (University of Bonn) Strangeness
More informationSearch for the η-mesic Helium bound state with the WASA-at-COSY facility
Search for the η-mesic Helium bound state with the WASA-at-COSY facility Magdalena Skurzok 1, Wojciech Krzemień 2, Oleksandr Rundel 1 and Pawel Moskal 1 for the WASA-at-COSY Collaboration 1 M. Smoluchowski
More informationCOSY Proposal and Beam Time Request. Investigation of the η 3 H final state in deuteron-neutron collisions at ANKE
COSY Proposal and Beam Time Request Investigation of the η 3 H final state in deuteron-neutron collisions at ANKE P. Goslawski, I. Burmeister, A. Khoukaz, M. Mielke, M. Papenbrock Institut für Kernphysik,
More informationCross Section of Exclusive π Electro-production from Neutron. Jixie Zhang (CLAS Collaboration) Old Dominion University Sep. 2009
Cross Section of Exclusive π Electro-production from Neutron Jixie Zhang (CLAS Collaboration) Old Dominion University Sep. 2009 Exclusive π electro-production Detect e`, π and at least ONE of the two final
More informationMeson production in pd fusion to ³HeX
Meson production in pd fusion to ³HeX with WASA-at-COSY Nils Hüsken for the WASA-at-COSY Collaboration Westfälische Wilhelms-Universität Münster, Institut für Kernphysik 25th International Nuclear Physics
More informationNeutrino Energy Reconstruction Methods Using Electron Scattering Data. Afroditi Papadopoulou Pre-conference, EINN /29/17
Neutrino Energy Reconstruction Methods Using Electron Scattering Data Afroditi Papadopoulou Pre-conference, EINN 2017 10/29/17 Outline Nuclear Physics and Neutrino Oscillations. Outstanding Challenges
More informationSearch for the eta-mesic helium by means of WASA detector at COSY
by means of WASA detector at COSY IKP, Forschungszentrum Jülich, D-52425 Jülich, Germany E-mail: p.moskal@uj.edu.pl W. Krzemień E-mail: wojciech.krzemien@if.uj.edu.pl M. Skurzok E-mail: magdalena.skurzok@uj.edu.pl
More informationPhysics Program at COSY-Jülich with Polarized Hadronic Probes
Mitglied der Helmholtz-Gemeinschaft Physics Program at COSY-Jülich with Polarized Hadronic Probes Forschungszentrum Jülich October 9, 2008 Andro Kacharava (JCHP/IKP, FZ-Jülich) Overview COSY (Cooler Synchrotron)
More informationCommissioning of the Polarized Internal Gas Target (PIT) of ANKE at COSY
Commissioning of the Polarized Internal Gas Target (PIT) of ANKE at COSY Ralf Engels Institut für Kernphysik, Forschungszentrum Jülich Tbilisi September 4, 2006 CGSWHP'06 Ralf Engels 1 Outline Introduction
More informationThe η-meson Decay Program at WASA-at-COSY
Mitglied der Helmholtz-Gemeinschaft The η-meson Decay Program at WASA-at-COSY 31.08.2015 Daniel Lersch for the WASA-at-COSY collaboration Institute for Nuclear Physics The η-meson! " " " # #, (" + " -
More informationStudying η-meson Decays with WASA-at-COSY
Studying η-meson Decays with WASA-at-COSY Daniel Lersch 1, for the WASA-at-COSY Collaboration 1 Juelich Research Center, Germany Abstract. The η-meson is a unique tool in a way that it provides access
More informationLEPS Physics HOTTA, Tomoaki (RCNP, Osaka University) on behalf of the LEPS&LEPS2 collaboration
LCS2014 International Workshop LEPS Physics HOTTA, Tomoaki (RCNP, Osaka University) on behalf of the LEPS&LEPS2 collaboration Outline Overview of the LEPS&LEPS2 beamlines Recent results from LEPS Search
More informationInvestigation of the 3 He-η system with polarized beams at ANKE
Investigation o the 3 He-η system with olarized beams at ANKE II International Symosium on Mesic Nuclei Setember -5, 013 Institut ür Kernhysik Alons Khoukaz Why η-meson Production Close to Threshold? Do
More informationAnalysis of the forbidden decay 0 +e + +e with WASA-at-COSY
Analysis of the forbidden decay 0 +e + +e with WASA-at-COSY Florian Bergmann 23.03.2011 1 Reminder: C-parity C-operator: turns particle into antiparticle E.g.: C e = C e C: phase factor Majorana particle:
More informationVincent Poireau CNRS-IN2P3, LAPP Annecy, Université de Savoie, France On behalf of the BaBar collaboration
CNRS-IN2P3, LAPP Annecy, Université de Savoie, France On behalf of the BaBar collaboration Moriond QCD, 24 March 2014 1 OUTLINE 9 GeV e - 3.1 GeV e + Recorded 531 fb -1 in total (4S): 433 fb -1 (3S): 30
More informationModifications of the D33(1700) resonance in the nuclear medium
Modifications of the D33(1700) resonance in the nuclear medium Vahe Sokhoyan Nuclear Photoproduction with GlueX Topical Workshop, April 28-29, 2016 Supported by the Carl-Zeiss-Stiftung Motivation Goal:
More informationStatus and Perspectives of Hadron Physics in Europe. Forschungszentrum Jülich in der Helmholtz-Gemeinschaft
Hans Ströher Status and Perspectives of Hadron Physics in Europe Forschungszentrum Jülich in der Helmholtz-Gemeinschaft Europe We are here: Tbilisi (Georgia) Area (EU 15): ~ π x 10 6 km 2 (EU 25): 1.25
More informationThe η-meson Decay Program at WASA-at-COSY
Mitglied der Helmholtz-Gemeinschaft The η-meson Decay Program at WASA-at-COSY 15.09.2015 Daniel Lersch for the WASA-at-COSY collaboration XVI International Conference on Hadron Spectroscopy The η-meson!
More informationA quest for the Kpp bound state via 3. He(K, n) reaction, J-PARC E15 experiment
A quest for the Kpp bound state via 3 He(K, n) reaction, J-PARC E15 experiment for E15 collaboration M. Iwasaki RIKEN Cluster for Pioneering Research 1 Meson Science Lab. J-PARC E15 Strong KN attraction!
More informationOverview of the LEPS facility Recent Results
SPring-8 Masaru Yosoi RCNP, Osaka University Overview of the LEPS facility Recent Results K* 0 Σ + photoproduction with evidence for κ meson exchange New result on Θ + LEPS2 project Characteristics of
More informationScintillators for photon detection at at medium energies
Scintillators for photon detection at at medium energies R.Novotny II.Physics II.Physics Institute, Institute, University University Giessen, Giessen, Germany Germany and and for for the the TAPS TAPS
More informationSearch for φ-n Bound State in Jefferson Lab Hall B
Search for φ-n Bound State in Jefferson Lab Hall B Haiyan Gao ( 高海燕 ) Duke University Jefferson Lab Theory Seminar, Oct. 20, 2008 1 QCD: still unsolved in non-perturbative region Gauge bosons: gluons (8)
More informationStudy of the decays at Wasa-at-COSY. Elisabetta Prencipe on behalf of the Wasa Collaboration MesonNet Workshop, 17th -19th June 2013, Praha
Study of the decays at Wasa-at-COSY on behalf of the Wasa Collaboration MesonNet Workshop, 17th -19th June 2013, Praha Outline Introduction The Wasa-at-COSY detector decays in the pd reaction e+e e+e e+e
More informationCHARM MESON SPECTROSCOPY AT
CHARM MESON SPECTROSCOPY AT Amina ZGHICHE CNRS-IN2P3, LAPP Annecy On behalf of the BaBar Collaboration 1 A. Zghiche CHARM 2007 August 8 th 2007 2 A. Zghiche CHARM 2007 August 8 th 2007 BABAR B AND c-factory
More informationStudies of charmonium production in e + e - annihilation and B decays at BaBar
Studies of charmonium production in e + e - annihilation and B decays at BaBar I. Garzia, INFN Sezione di Ferrara On behalf of the BaBar Collaboration XVI International Conference on Hadron Spectroscopy
More informationNuclear Short Range Correlations
Nuclear Short Range Correlations Larry Weinstein Old Dominion University What are Correlations? Neutron stars EMC effect Hit the correlated pair Spectator correlated pairs np vs pp pairs Summary Elba Workshop,
More information2 Meson Spectroscopy at LEAR with the Crystal Barrel. In collaboration with: Academy of Science (Budapest); Universities of Bochum, Bonn,
8 Meson Spectroscopy at LEAR with the Crystal Barrel 2 Meson Spectroscopy at LEAR with the Crystal Barrel C. Amsler, M. Buchler, P. Giarritta, M. Heinzelmann, F. Ould-Saada, C. Pietra, C. Regenfus and
More informationSearch for exotic charmonium states
Search for exotic charmonium states on behalf of the BABAR and BELLE Collaborations August 25th, 2014 (*), Forschungszentrum Jülich (Germany) (Germany) 1 (*) Previously addressed at JGU University of Mainz
More informationScalar mesons at KLOE
Salvatore Fiore QCD08 - July 9 th 2008 Montpellier 1 Scalar mesons at KLOE Salvatore Fiore (on behalf of the KLOE collaboration) Sapienza Università di Roma and INFN Roma Talk outline DAFNE and KLOE Scalar
More informationDeeply Virtual Compton Scattering on the neutron
Deeply Virtual Compton Scattering on the neutron Malek MAZOUZ For JLab Hall A & DVCS collaborations Physics case n-dvcs experimental setup Analysis method Results and conclusions Exclusive Reactions at
More informationCOSY Proposal and Beam Request. Commissioning and initial research with the Polarized Internal deuterium gas Target at ANKE
COSY Proposal and Beam Request Exp. No.: 21.1 For Lab. use Session No. 39 Title of Experiment Commissioning and initial research with the Polarized Internal deuterium gas Target at ANKE Collaborators:
More informationAtsushi Sakaguchi (Osaka University) for the J-PARC E10 Collaboration
Atsushi Sakaguchi (Osaka University) for the J-PARC E10 Collaboration Study of Λ hypernuclei and ΛN interaction Λ hypernucleus System made of a Λ hyperon and a nucleus(a) ΛN interaction strong enough to
More informationarxiv: v2 [nucl-ex] 17 Jul 2014
Determination of the η -proton scattering length in free space arxiv:44.5436v2 [nucl-ex] 7 Jul 24 E. Czerwiński,, P. Moskal, M. Silarski, S. D. Bass, 2 D. Grzonka, 3 B. Kamys, A. Khoukaz, 4 J. Klaja, W.
More informationLABORATORI NAZIONALI DI FRASCATI SIS-Pubblicazioni
LABORATORI NAZIONALI DI FRASCATI SIS-Pubblicazioni LNF-06/22 (P) 29 August 2006 HADRON PROPERTIES IN THE NUCLEAR MEDIUM THE PANDA PROGRAM WITH pa REACTIONS Olaf N. Hartmann INFN, Laboratori Nazionali di
More informationProperties of the Λ(1405) Measured at CLAS
PANIC 11 Properties of the Λ(145) Measured at CLAS Kei Moriya (Indiana University) advisor: Reinhard Schumacher (Carnegie Mellon University) July 5, 11 Outline 1 Introduction What is the Λ(145)? Chiral
More informationWeak decay of hypernuclei with FINUDA. Alessandro Feliciello I.N.F.N. - Sezione di Torino
Weak decay of hypernuclei with FINUDA Alessandro Feliciello I.N.F.N. - Sezione di Torino 2 Outlook Introduction The FINUDA experiment Weak decay of hypernuclei mesonic nucleon stimulated rare decay channels
More informationUppsala University. October 16, Dark Forces at Accelerators, Frascati, Oct π 0 decays with WASA-at-COSY. Carl-Oscar Gullström
decays with decays with October 16, 2012 Dark Forces at Accelerators, Frascati, 16-19 Oct. 2011 Outline decays with 1 2 COSY 3 4 5 decays with Mass: 134.98 MeV /c 2 uū d d quark content: 2 Life time: 8.4
More informationExperimental Study of the Kaonic Bond State
2008 / 06 / 06~10 Experimental Study of the Kaonic Bond State M. Iwasaki Advanced Meson Science Lab. MESON 2008 @ CRACOW Purpose in perspective manner - to detect quark degree of freedom similar to other
More informationImproved search of COSY-TOF on Ө +
Pentaquark 05 International Worksho, October 20-22, 2005, Jefferson Lab, U.S. Imroved search of COSY-TOF on Ө + Wolfgang Eyrich Physikalisches Institut, University of Erlangen-Nuremberg, Germany for the
More informationISOSPIN RESOLVED DOUBLE PION PRODUCTION AT CELSIUS
Vol. 29 (1998) ACTA PHYSICA POLONICA B No 11 ISOSPIN RESOLVED DOUBLE PION PRODUCTION AT CELSIUS M. Andersson a, Chr. Bargholtz a, E. Fumero a, K. Fransson a L. Holmberg a, K. Lindh a, L. Mårtensson a,
More informationPentaquark Search Summary
Pentaquark Search Summary David J. Tedeschi University of South Carolina Supported by NSF-0244982 Pentaquark Structure Pentaquarks: rotational excitations of the soliton [rigid core surrounded by chiral
More informationTheory English (Official)
Q3-1 Large Hadron Collider (10 points) Please read the general instructions in the separate envelope before you start this problem. In this task, the physics of the particle accelerator LHC (Large Hadron
More informationNeutron Structure Function from BoNuS
Neutron Structure Function from BoNuS Stephen BültmannB Old Dominion University for the CLAS Collaboration The Structure of the Neutron at Large x The BoNuS Experiment in 005 First Results from the BoNuS
More informationPoS(STORI11)050. The η π + π π 0 decay with WASA-at-COSY
The η π + π π 0 decay with WASA-at-COSY Institute for Physics and Astronomy, Uppsala University E-mail: patrik.adlarson@physics.uu.se Recently, a large statistics sample of approximately 3 10 7 decays
More informationNEUTRON-NEUTRON SCATTERING LENGTH FROM THE REACTION γd π + nn
MENU 2007 11th International Conference on Meson-Nucleon Physics and the Structure of the Nucleon September10-14, 2007 IKP, Forschungzentrum Jülich, Germany NEUTRON-NEUTRON SCATTERING LENGTH FROM THE REACTION
More informationOverview of recent HERMES results
Journal of Physics: Conference Series PAPER OPEN ACCESS Overview of recent HERMES results To cite this article: Hrachya Marukyan and 216 J. Phys.: Conf. Ser. 678 1238 View the article online for updates
More informationVector-Meson Photoproduction
Vector-Meson Photoproduction PWA ATHOS 2015 Ashburn, VA Hartmut Schmieden Physikalisches Institut Universität Bonn Germany why vecor mesons? Crystal-Barrel/TAPS @ ELSA status ω, ϕ, K* double polarization
More informationMESON PRODUCTION IN NN COLLISIONS
MENU 07 11th International Conference on Meson-Nucleon Physics and the Structure of the Nucleon September10-14, 07 IKP, Forschungzentrum Jülich, Germany MESON PRODUCTION IN NN COLLISIONS K. Nakayama a,b,1,
More informationarxiv:nucl-ex/ v2 17 Jun 2004
EPJ manuscript No. (will be inserted by the editor) Near-threshold production of ω mesons in the pn dω reaction arxiv:nucl-ex/3531v2 17 Jun 24 S. Barsov 1, I. Lehmann 2, R. Schleichert 2a, C. Wilkin 3,
More informationQuarkonium LHCb
Quarkonium Studies @ LHCb Giacomo Graziani (INFN Firenze) on behalf of the LHCb Collaboration December 5th, 2008 QWG08, Nara G. Graziani slide 1 QWG08 The LHCb Experiment dedicated to CP violation and
More informationRecent results from SND detector
Recent results from SND detector Dmitry Shtol Budker Institute of Nuclear Physics, Novosibirsk State University, Novosibirsk, Russia HADRON-2015 13-19 September, 2015 VEPP-2000 e + e - collider center-of-mass
More informationRecent results from the STAR experiment on Vector Meson production in ultra peripheral AuAu collisions at RHIC.
Recent results from the STAR experiment on Vector Meson production in ultra peripheral AuAu collisions at RHIC. Leszek Adamczyk On behalf of STAR Collaboration September 7, 2016 RHIC AA: Au+Au, Cu+Cu,
More informationPoS(BORMIO2010)052. Measurement of the Λ(1405) in proton proton reactions with HADES
Measurement of the Λ(145) in proton proton reactions with HADES HADES Collaboration Email: johannes.siebenson@ph.tum.de We present an analysis of the Λ(145) resonance in p p reactions at a kinetic beam
More informationTriangle singularity in light meson spectroscopy
Triangle singularity in light meson spectroscopy M. Mikhasenko, B. Ketzer, A. Sarantsev HISKP, University of Bonn April 16, 2015 M. Mikhasenko (HISKP) Triangle singularity April 16, 2015 1 / 21 New a 1-1
More informationSuppression of neutral pion production at large transverse momentum measured with the ALICE experiment in Pb-Pb collisions at s NN =2.
Suppression of neutral pion production at large transverse momentum measured with the ALICE experiment in Pb-Pb collisions at s NN =.76 ev Gustavo Conesa Balbastre for the ALICE collaboration 6/5/11 G.
More informationMeasuring η π+ π- e+ e- with WASA at COSY. Daniel Coderre Hirschegg 2010
tglied der Helmholtz-Gemeinschaft Measuring η π+ π- e+ e- with WASA at COSY Daniel Coderre Hirschegg 2010 The WASA Detector ~20-170 Degrees ~3-18 Degrees - Internal experiment at COSY ring, Jülich, Germany
More informationNeutrino interaction at K2K
Neutrino interaction at K2K KEK Yoshinari Hayato for the K2K collaboration Contents Introduction Neutrino flux measurements and neutrino interaction studies in K2K Charged current quasi-elastic scattering
More informationThe Meson Decay Program at WASA-at-COSY. Daniel Coderre Light Meson Decays Workshop JLab, August 2012
Mitglied der Helmholtz-Gemeinschaft The Meson Decay Program at WASA-at-COSY Daniel Coderre Light Meson Decays Workshop JLab, August 2012 Scope of the WASA-at-COSY Meson Decay Program WASA-at-COSY η Decays
More informationCharmSpectroscopy from B factories
CharmSpectroscopy from B factories (SLAC) Representing the BABAR Collaboration Charm 2010 Workshop Beijing October 23, 2010 Contact: benitezj@slac.stanford.edu Production of Charm Mesons at B-factories
More informationSearch for Pentaquarks at CLAS. in Photoproduction from Proton
Search for Pentaquarks at CLAS M. Battaglieri, R. De Vita, V. Kubarovsky, D. Weygand and the CLAS Collaboration April Meeting Quarks and QCD quarks are among the few known elementary particles quarks interact
More informationPHYSICS PROGRAM AT COSY
MENU 2007 11th International Conference on Meson-Nucleon Physics and the Structure of the Nucleon September10-14, 2007 IKP, Forschungzentrum Jülich, Germany PHYSICS PROGRAM AT COSY K.-Th. Brinkmann Technische
More informationHelicity Dependent Cross Sections in Meson Photoproduction off Quasi-Free Protons and Neutrons
Helicity Dependent Cross Sections in Meson Photoproduction off Quasi-Free Protons and Neutrons Frankfurt, March 7 th 24 DPG Frühjahrstagung A2 Outline Introduction Motivation Double Polarization Observable
More informationThe ππ and Kπ amplitudes from heavy flavor decays
The ππ and Kπ amplitudes from heavy flavor decays Alberto Reis Centro Brasileiro de Pesquisas Físicas CBPF 12th International Conference on Meson-Nucleon Physics and the Structure of the Nucleon Williamsburg,
More informationMeasurement of light mesons at RHIC by the PHENIX experiment
Eur. Phys. J. C (2009) 61: 835 840 DOI 10.1140/epjc/s10052-009-0879-4 Regular Article - Experimental Physics Measurement of light mesons at RHIC by the PHENIX experiment M. Naglis a for the PHENIX Collaboration
More informationSpectroscopy Results from COMPASS. Jan Friedrich. Physik-Department, TU München on behalf of the COMPASS collaboration
Spectroscopy Results from COMPASS Jan Friedrich Physik-Department, TU München on behalf of the COMPASS collaboration 11th European Research Conference on "Electromagnetic Interactions with Nucleons and
More informationThe Excitation Function of the Omega Meson in Medium
Omega Meson in CB Meeting Edinburgh II. Physikalisches Institut Justus-Liebig-Universtiy Gießen 14th of September 009 Outline E γ < 900 MeV Deviation from excitation function on free nucleon expected,
More informationBottomonium results. K.Trabelsi kek.jp
Bottomonium results K.Trabelsi karim.trabelsi @ kek.jp KEKB collider and Belle in a nutshell Belle is an international collaboration 15 countries, 64 institutes 365 members Nature of 5S Anomalous production
More informationBeam Asymmetry measurement in Pion Photoproduction on the neutron using CLAS
Beam Asymmetry measurement in Pion Photoproduction on the neutron using CLAS University of Glasgow, UK on behalf of the CLAS Collaboration MENU2013, Rome, Italy 1st October 2013 Meson Photoproduction Meson
More informationPhysikalisches Institut Universität Bonn BOSEN Vera Kleber. Λ(1405) Photoproduction at CB-ELSA. Vera Kleber Bosen,
BOSEN 2005 Λ(1405) Photoproduction at CB-ELSA Vera Kleber Physikalisches Institut Universität Bonn 1 Outline Motivation Access to Λ(1405) and available data Λ(1405) at CB-ELSA Outlook 2 What s known PDG
More informationMeson Physics with Crystal Ball at MAMI
Meson Physics with Crystal Ball at MAMI Institute for Nuclear Physics University Mainz Outline Crystal Ball Set-up at MAMI ' Cross Sections Transition Form Factor from e+e- Revisited T and F Asymmetry
More informationHadron Physics with Photon Beam at LEPS/ LEPS2 Takashi Nakano (RCNP, Osaka Univ.) HHIQCD2015, March 3rd, 2015
Hadron Physics with Photon Beam at LEPS/ LEPS2 Takashi Nakano (RCNP, Osaka Univ.) HHIQCD2015, March 3rd, 2015 1 Outline LEPS Overview Some recent results LEPS2 Physics Motivation Overview First experiment
More informationSub Threshold strange hadron production in UrQMD
Sub Threshold strange hadron production in UrQMD Jan Steinheimer and Marcus Bleicher 10.05.2016 Jan Steinheimer and Marcus Bleicher (FIAS) 10.05.2016 1 / 26 Motivation Recent measurements on near and below
More informationSub-threshold strangeness and charm production (in UrQMD)
Sub-threshold strangeness and charm production (in UrQMD) Marcus Bleicher and Jan Steinheimer Marcus Bleicher and Jan Steinheimer 1 / 24 Motivation Recent measurements on near and below threshold production.
More informationThe Status and Plans of Θ + study at LEPS
The Status and Plans of Θ + study at LEPS T. Nakano RCNP, Osaka University Strangeness Workshop @ Itoh, November 18, 25 1 Θ + searches at LEPS Introduction Search in γ d K + K - X Search in γ d Λ(152)
More informationarxiv:nucl-ex/ v1 21 Dec 2004
φ meson production in d + Au collisions at s NN = 00 GeV arxiv:nucl-ex/041048v1 1 Dec 004 1. Introduction Dipali Pal for the PHENIX collaboration Department of Physics & Astronomy, Vanderbilt University,
More informationTHE FORWARD DETECTOR OF THE ANKE SPECTROMETER. SCINTILLATION AND CHERENKOV HODOSCOPES
Ó³ Ÿ. 2002. º 4[113] Particles and Nuclei, Letters. 2002. No. 4[113] Š 539.1.07 THE FORWARD DETECTOR OF THE ANKE SPECTROMETER. SCINTILLATION AND CHERENKOV HODOSCOPES B. Chiladze a,s.dymov b, R. Esser c,
More informationPoS(Hadron 2013)182. Search for deeply-bound K-nuclear states via the. 3 He(inflight-K, n) reaction at J-PARC
Search for deeply-bound K-nuclear states via the 3 He(inflight-K, n) reaction at J-PARC for the J-PARC E15 collaboration Research Center for Nuclear Physics, Osaka University, Osaka 567-0047, Japan E-mail:
More informationDetermination of the η -nucleus optical potential
Determination of the η -nucleus optical potential M. Nanova II. Physikalisches Institut for the CBELSA/TAPS Collaboration Outline: motivation experimental approaches for determining the η -nucleus optical
More informationHadronic 3 Heη production near threshold
PHYSICAL REVIEW C 75, 144 (27) Hadronic 3 Heη production near threshold H.-H. Adam, * I. Geck, A. Khoukaz, T. Lister, R. Santo, S. Steltenkamp, and A. Täschner Institut für Kernphysik, Universität Münster,
More informationRecent Results On Light Hadron Spectroscopy at BESIII
Recent Results On Light Hadron Spectroscopy at BESIII CHEN Ye (for BESIII Collaboration) Institute of High Energy Physics, Beijing 0 The 4th International Workshop on Charm Physics, Oct. 23, 2010, Beijing
More informationPoS(Baldin ISHEPP XXII)042
Multifragmentation of nuclei by photons: new approaches and results Institute for Nuclear Research RAS Prospect 60-let Octabra, 7A, 117312 Moscow, Russia E-mail: vladimir@cpc.inr.ac.ru A review on multifragmentation
More informationPhotoproduction of K 0 Σ + with CLAS
Photoproduction of K 0 Σ + with CLAS Franz Klein The Catholic University of America for the CLAS Collaboration Physics Motivation Photoproduction of associated strangeness : Channels: significant data
More informationRecent results at the -meson region from the CMD-3 detector at the VEPP-2000 collider
Recent results at the -meson region from the CMD-3 detector at the VEPP-2000 collider Vyacheslav Ivanov *1, Evgeny Solodov 1, Evgeny Kozyrev 1, and Georgiy Razuvaev 1 1 Budker Institute of Nuclear Physics,
More informationStatus / Hadron Spectroscopy at COMPASS
Status / Hadron Spectroscopy at COMPASS Johannes Bernhard 1 Institut für Kernphysik Mainz January 22 nd 2010 1 johannes.bernhard@cern.ch Outline 1 Introduction 2 Recoil Proton Detector 3 Trigger 4 Analysis
More informationfrom B -Factories A. Oyanguren (IFIC U. Valencia) BaBar Collaboration
Charm Form Factors from B -Factories A. Oyanguren (IFIC U. Valencia) BaBar Collaboration Purpose: Charm Form Factors - Validate Lattice-QCD calculations - Discriminate between models describing hadronic
More informationLight Meson Decays at BESIII
Light Meson Decays at BESIII Liqing QIN (for the Collaboration ) Shandong University XVI International Conference on Hadron Spectroscopy Sep. 13-18, 2015, Newport News, VA OUTLINE n Introduction n Recent
More informationReport on NSTAR 2005 Workshop
Report on NSTAR 2005 Workshop V. Credé 1 1 Florida State University Tallahassee, FL Cascade Workshop at JLab, 12/03/2005 Outline Introduction 1 Introduction 2 What are the problems? The NSTAR 2005 Workshop
More informationLight Baryon Spectroscopy using the CLAS Spectrometer at Jefferson Laboratory
Light Baryon Spectroscopy using the CLAS Spectrometer at Jefferson Laboratory Volker Crede on behalf of the CLAS Collaboration Department of Physics Florida State University Tallahassee, FL 3236, USA Baryons
More informationLepton and Charm Measurements in the First Two Years of RHIC: An Experimental Overview
Lepton and Charm Measurements in the First Two Years of RHIC: An Experimental Overview Ralf Averbeck State University of New York at Stony Brook INT/RHIC Winter Workshop, Seattle, December 13-15, 2002
More informationarxiv: v1 [hep-ex] 31 Dec 2014
The Journal s name will be set by the publisher DOI: will be set by the publisher c Owned by the authors, published by EDP Sciences, 5 arxiv:5.v [hep-ex] Dec 4 Highlights from Compass in hadron spectroscopy
More information