PVDIS and nucleon structure
|
|
- Bruno Reynolds
- 5 years ago
- Views:
Transcription
1 Physics Beyond the SM and Precision Nucleon Structure with PVES ECT* Trento, August, 06 PVDIS and nucleon structure Wally Melnitchouk
2 PVDIS (~en! ex) is a valuable tool to study flavor and spin dependence of nucleon PDFs establish accurate baseline from which to eplore BSM physics s corrections (NLO) target mass corrections higher twists Outline PVDIS at lower Q and W (e.g. resonance region) provides vital input for estimates of Z interference corrections (e.g. for Qweak) Etraction of PDF information requires various subleading, finite-q corrections to be understood, L/ T C. Seng talk ratio P. Blunden, M. Gorshteyn talks
3 PVDIS at leading twist
4 Asymmetry between left- and right-handed inclusive electron-nucleon cross sections A PV = R L R + L for Q M Z numerator sensitive to Z interference only e (k) e (k ) γ (q ) Z (q ) N (p) N (p ) Q = (q + q ) denominator dominated by electromagnetic component
5 In terms of structure functions, A PV = GF Q 4 p g e F Z A Y F + g e V Y 3 F Z 3 F! Y,3 parameterize dependence on y = /E Y = +( y) y ( r /( + R Z )) ym/e +R Z +( y) y ( r /( + R )) ym/e +R ( y) r Y 3 = +( y) y ( r /( + R )) ym/e +R with r =+ Q =+4 M Q R ( Z) = ( Z) L ( Z) T = r F ( Z) F ( Z)
6 Leading twist electroweak structure functions (at leading order in ) s electromagnetic F =F () = X q e q q()+ q() V V interference F Z =F Z () = X q e q g q V q()+ q() V V F Z 3 = X q e q g q A q() q() V A g u V = 4 3 sin W ga u = = gd,s A g d,s V = + 3 sin W
7 Leading twist electroweak structure functions F p = 4 9 (u +ū)+ 9 (d + d + s + s)+ F n = 4 9 (d + d)+ (u +ū + s + s)+ 9 F Z,p = sin W (u +ū)+ 6 9 sin W (d + d + s + s)+ F Z,n = 9 (u +ū + d + d + s + s) sin W (d + d)+ 6 9 (d + d + u +ū + s + s)+ for sin W /4 9 sin W (u +ū + s + s)+ for sin W /4 strange quark sensitivity enhanced relative to e.m. case
8 Leading twist electroweak structure functions F p = 4 9 (u +ū)+ 9 (d + d + s + s)+ F n = 4 9 (d + d)+ (u +ū + s + s)+ 9 F Z,p = sin W (u +ū)+ 6 9 sin W (d + d + s + s)+ F Z,n = 9 (u +ū + d + d + s + s) sin W (d + d)+ 6 9 (d + d + u +ū + s + s)+ for sin W /4 9 sin W (u +ū + s + s)+ for sin W /4 F Z,p 3 = 3 (u ū)+ 3 (d d + s s)+ F Z,n 3 = 3 (d d)+ (u ū + s s)+ 3 sensitivity to strange-antistrange asymmetry
9 PV asymmetry in terms of PDFs A PV = GF Q 4 p (Y a + Y 3 a 3 ) (hadronic) vector term (hadronic) aial-vector term a = P q e qc q (q + q) P q e q(q + q) a 3 = P q e qc q (q P q e q(q + q) q) C q =g e A g q V C q =g e V g q A simplified y dependence Y! Y 3! ( y) +( y)
10 At large proton asymmetry sensitive to d/u ratio a = C u 6C d d/u 4+d/u a 3 = C u 6C d d/u 4+d/u d/u DIS only + BONuS + ` asym (& Z rap) + W asym CJ Accardi, Brady, WM, Owens, Sato PRD 93, 407 (06) ~% error on d/u epected in SoLID up to ~ 0.7 (note: different PDF uncertainty definitions in different analyses!!)
11 At large proton asymmetry sensitive to d/u ratio a = C u 6C d d/u 4+d/u a 3 = C u 6C d d/u 4+d/u d/u CJ5 DIS only + BONuS + ` asym (& Z rap) + W asym A` AW CJ5 CDF e DØ e DØ µ ` CJ5 CDF DØ y W error reduced by recent W asymmetry data - but rely on reconstruction from W! ` decays
12 At smaller, have order of magnitude greater sensitivity of F Z,p to strange-quark PDF than of e.m. F p ū/ū CJ Q = 0 GeV u/u CJ CJ5 90%CL CJ5 68%CL MMHT4 HERAPDF.5 NNPDF d/d CJ s/s CJ (s+s - )//d ū/ū 0.4 CJ CMS µ =.9 GeV, n f =3 ATLAS NuTeV/CCFR + NOMAD + CHORUS CHORUS + CMS + ATLAS Alekhin et al, PRD 9, (05) d/ d CJ Accardi et al, PRD 93, 407 (06) currently relatively large uncertainties on s() at intermediate - most information obtained from charm production in neutrino-nucleus DIS
13 Deuteron target - dependence on PDFs cancels at high Q a = 6 5 (C u C d ) a 3 = 6 5 (C u C d ) PV asymmetry independent of hadronic structure A PV = 3GF Q 0 p Y (C u C d)+y 3 (C u C d) sensitivity to electroweak couplings alternatively, could probe charge symmetry violation (CSV) in PDFs I. Cloet talk
14 Historically, PVDIS was first measured at SLAC (on deuterium) at Q ~ GeV and W ~ 3 GeV y Prescott et al, PLB 77, 347 (978) important for testing SM, but not for PDF determination
15 More recently, PVDIS measured more precisely at Jefferson Lab E08-0 at lower W (GeV A pv (ppm) / Q ) Data I Data II Data III Data IV E b =4.867GeV Theory A Theory B Theory C DIS(CJ) E b =6.067GeV W(GeV) Wang et al, PRL, 0850 (03) indication of quark-hadron duality in in the nucleon resonance region Z structure functions
16 Z structure functions measured at HERA at very high Q & W γz F H Collaboration Transformed to Q = 500 GeV H HPDF 0 γz F H Collaboration Transformed to Q = 500 GeV H HPDF HERA II H Collaboration, JHEP 09 (0) 6 HERA I+II essentially no proton PVDIS data at lower Q
17 Finite-Q corrections
18 Contribution from aial-vector term R Z = R 0.8 Y ± 0% Y,3 0.6 Y 3 R =0,r = 0.4 Q =5GeV full Hobbs, WM, PRD 77, 403 (008) Bjorken limit hadronic aial-vector term relatively more important at finite Q
19 Sensitivity to R = L / T and R Z = Z L / Z T * * Q =5GeV relative change to Bjorken limit asymmetry uncertainty due to R smaller than d/u error* at high need estimate for R Z to determine impact on asymmetry uncertainty * assuming d/u! 0 or 0. at = ; uncertainty smaller with new W asymmetry data
20 What could break R Z = R? higher order pqcd corrections R ( Z) =0 at leading order (perturbatively); at NLO different /Z couplings induce R 6= R Z target mass corrections ( kinematical /Q corrections) since TMCs for F L and F T are different, differences in ratios will be different with & without TMC (depend on treatment of struck parton - off-shell, collinear,...) dynamical higher twist /Q corrections from multi-parton correlations nuclear effects in deuteron
21 Target mass corrections operator product epansion (Georgi, Politzer) PRD 4, 89 (976) standard approach, uses inverse Mellin transform; threshold problem at = collinear factorization (Ellis, Furmanski, Petronzio) diagrammatic approach, impose < by definition; include parton virtuality & k T ; to O(/Q ) only NP B, 9 (983) collinear factorization (Accardi, Qiu) similar to EFP, but include only -leg (cf. 4-leg) diagrams; allow for jet-mass corrections, NLO effects JHEP 07, 090 (008) -scaling (Aivazis et al., Kretzer-Reno) similar to AQ, but at leading order PRD 69, (004)
22 Target mass corrections F γ / F γ (0).6. OPE EFP ξ-s AQ Q =GeV F γ / F γ OPE EFP ξ-s AQ effects large at high (and low Q ) up to ~0% model dependence in structure functions
23 Target mass corrections R γz / R γ no TMC OPE EFP ξ-s AQ proton Q = GeV Q = 0 GeV less than ~ 4% TMC and NLO effects cf. R reduced to ~ % at Q =0 GeV
24 Target mass corrections R γz / R γ Q = GeV deuteron no TMC OPE EFP ξ-s AQ R d γz / RN γz no TMC OPE EFP ξ-s AQ differences between R & R Z small at high significant nuclear effect in R Z ratio - reduced with inclusion of TMCs
25 QCD /Q Dynamical higher twists corrections from multi-parton correlations for deuterium, only one twist-4 (four-quark) operator ū(z) µ u(z) d(0) d(0) + (u $ d) MIT bag model estimate of matri elements etension to dependence Bjorken, PRD 8, 339 (978) Wolfenstein, NP B46, 477 (978) Castorina, Mulders, PRD 3, 760 (985) Mantry, Ramsey-Musolf, Sacco, PRC 8, (00) estimate using multi-parton light-cone wavefunctions Belitsky, Manashov, Schaefer, PRD 84, 0400 (0) matri elements sensitive to OAM in initial state C.-Y. Seng talk Seng, Ramsey-Musolf, PRC 88, 050 (03) Alternatively, estimate HT contribution phenomenologically
26 Dynamical higher twists In global QCD analyses parametrize structure function as F (, Q )=F (LT) (, Q ) + C HT() Q CHT (GeV ) Accardi et al. PRD 93, 407 (06) AV8 CD-Bonn WJC WJC LO NLO C HT = h 0 h ( + h ) cannot accommodate Q dependence of data without power corrections crucial for etracting correct PDFs at high can do the same with PVDIS data, especially with sufficient Q coverage - isolate isospin dependence of higher twists vs.!
27 Polarized PVDIS
28 PVDIS from a polarized target 3 LOI to JLab PAC44 for PVDIS from polarized He Just as with sensitivity to s in F Z, the spin-dependent structure function has enhanced sensitivity to s g Z,p = g Z X e q g q V ( q + q) 9 ( u + ū + d + d + s + s)+ q g Z,n significant uncertainty eists for s(), even in sign! most PDF analyses assume flavor SU(3) symmetry for hyperon decay constants JAM5 JAM3 DSSV09 NNPDF4 BB0 AAC09 LSS d u s + g polarized PVDIS would be first ever test of SU(3) in DIS Nobuo Sato et al, PRD 93, (06) Jefferson Lab Angular Momentum (JAM) Collaboration
29 Summary PVDIS offers unique window on nucleon structure, with unambiguous flavor separation (u, d and s) Corrections to leading-twist PVDIS from finite Q effects identified and quantified PVDIS data (unpolarized and polarized) can be included in global QCD analyses (CJ, JAM) that are continuously being improved and developed
Parton-hadron duality and PDF fits
Parton-hadron duality and PDF fits Alberto Accardi Hampton U. and Jefferson Lab Topical Meeting on Parton Hadron Duality University of Virginia, 13 March 2015 Why PDFs at large x? Accardi, Mod.Phys.Lett.
More informationFinite-Q² corrections in PVDIS
Finite-Q² corrections in PVDIS T. Hobbs, Indiana Univ. 3rd International Workshop on Nucleon Structure at Large Bjorken x Newport News, 10/13/2010 A Road Map Why are small Q² corrections relevant at high
More informationSpin-dependent PDFs at large x
Physics Opportunities at an Electron-Ion Collider (POETIC V) Yale University September 22, 24 Spin-dependent PDFs at large Wally Melnitchouk Outline Why is nucleon (spin) structure at large interesting?
More informationNew JAM global analysis of spin-dependent PDFs
QCD Evolution Jefferson Lab, May 26, 2015 New JAM global analysis of spin-dependent PDFs Wally Melnitchouk Jefferson Lab Angular Momentum (JAM) Collaboration Nobuo Sato, Jacob Ethier, Alberto Accardi (Pedro
More informationCJ PDFs and Impact of Nuclear Corrections on d/u
CJ PDFs and Impact of Nuclear Corrections on d/u Alberto Accardi Hampton U. and Jefferson Lab QCD @ LHC Michigan State U. August 22, 2012 The coherence provided by QCD means that insights [into hadron
More informationIterative Monte Carlo analysis of spin-dependent parton distributions
Iterative Monte Carlo analysis of spin-dependent parton distributions (PRD.93.745) Nobuo Sato In Collaboration with: W. Melnitchouk, S. E. Kuhn, J. J. Ethier, A. Accardi Precision Radiative Corrections
More informationGlobal analysis of parton densities and fragmentation functions
Global analysis of parton densities and fragmentation functions Carlota Andrés Jefferson Lab 18 JLab Users Group Meeting Newport News, Virginia, June 18-, 18 Why JAM? JAM: Jefferson Lab Angular Momentum
More informationQuark-Hadron Duality in Structure Functions
Approaches to QCD, Oberwoelz, Austria September 10, 2008 Quark-Hadron Duality in Structure Functions Wally Melnitchouk Outline Bloom-Gilman duality Duality in QCD OPE & higher twists Resonances & local
More informationSpin Structure of the Nucleon: quark spin dependence
Spin Structure of the Nucleon: quark spin dependence R. De Vita Istituto Nazionale di Fisica Nucleare Electromagnetic Interactions with Nucleons and Nuclei EINN005 Milos September, 005 The discovery of
More informationNucleon and nuclear structure at the EIC
Nucleon and nuclear structure at the EIC Alberto Accardi Hampton U. and Jefferson Lab Universidad Técnica Federico Santa María Valparaíso, CHILE 4-8 March 2013 Overview Protons and Deuterons: partons at
More informationQuark-Hadron Duality: Connecting the Perturbative and Non-Perturbative QCD Regimes
Quark-Hadron Duality: Connecting the Perturbative and Non-Perturbative QCD Regimes Simona Malace Norfolk State University Light Cone 2015, September 21-25 2015, INFN Frascati What is Quark-hadron duality?
More informationJAMboree. Theory Center Jamboree Jefferson Lab, Dec 13, Pedro Jimenez Delgado
JAMboree Theory Center Jamboree Jefferson Lab, Dec 13, 2013 Introduction Hadrons composed of quarks and gluons scattering off partons Parton distribution functions Plausible at high energies (from GeV):
More informationFlavor decomposition of collinear PDFs and FFs
EIC User Group Meeting CUA, Washington DC, August 1, 218 Flavor decomposition of collinear PDFs and FFs Wally Melnitchouk JLab Angular Momentum collaboration Outline Unravel flavor (and spin) structure
More informationNucleon Valence Quark Structure
Nucleon Valence Quark Structure Z.-E. Meziani, S. Kuhn, O. Rondon, W. Melnitchouk Physics Motivation Nucleon spin and flavor structure High-x quark distributions Spin-flavor separation Moments of structure
More informationProton longitudinal spin structure- RHIC and COMPASS results
Proton longitudinal spin structure- RHIC and COMPASS results Fabienne KUNNE CEA /IRFU Saclay, France Gluon helicity PHENIX & STAR: pp jets, pp p 0 COMPASS g 1 QCD fit + DG direct measurements Quark helicity
More informationParton flavor separation at large fractional momentum
Parton flavor separation at large fractional momentum Alberto Accardi Hampton U. & Jefferson Lab Pavia U. 13 July 2010 Outline Introduction Quark, gluons and nucleons Parton distributions Global fits Why
More informationFlavor Decomposition
SIDIS Workshop for PAC30 April 14, 2006 Flavor Decomposition in Semi-Inclusive DIS Wally Melnitchouk Jefferson Lab Outline Valence quarks unpolarized d/u ratio polarized d/d ratio Sea quarks flavor asymmetry
More informationTwo photon exchange: theoretical issues
Two photon exchange: theoretical issues Peter Blunden University of Manitoba International Workshop on Positrons at JLAB March 25-27, 2009 Proton G E /G M Ratio Rosenbluth (Longitudinal-Transverse) Separation
More informationSpin Structure of the Proton and Deuteron
Spin Structure of the Proton and Deuteron K. Griffioen College of William & Mary griff@physics.wm.edu Spin Structure at Long Distances Jefferson Lab 12 March 2009 Inelastic Scattering Q 2 increases 12
More informationPoS(Photon 2013)004. Proton structure and PDFs at HERA. Vladimir Chekelian MPI for Physics, Munich
MPI for Physics, Munich E-mail: shekeln@mail.desy.de The neutral and charged current deep-inelastic ep scattering cross sections are measured in the H and ZEUS eperiments at HERA (99-7), with an electron
More informationModels of the Nucleon & Parton Distribution Functions
11th CTEQ Summer School on QCD Analysis and Phenomenology Madison, Wisconsin, June 22-30, 2004 Models of the Nucleon & Parton Distribution Functions Wally Melnitchouk Jefferson Lab Outline Introduction
More informationCollinear factorization for DIS at large Bjorken xb
Collinear factorization for DIS at large Bjorken B Alberto Accardi Jlab & Hampton U. Jefferson Lab 6 March 008 Work in progress with: J.W. Qiu W. Melnitchouk, T. Keppel, E. Christy Motivation and outline
More informationDuality in Inclusive Structure Functions: Present and Future. Simona Malace Jefferson Lab
Duality in Inclusive Structure Functions: Present and Future Simona Malace Jefferson Lab University of Virginia, March 13 2015 What is Quark-hadron duality? Quark-Hadron Duality Quark-hadron duality =
More informationPDFs from the CTEQ-JLab collaboration
PDFs from the CTEQ-JLab collaboration Alberto Accardi Hampton U. and Jefferson Lab LNF, Frascati, 17 21 November 2014 The CTEQ-JLab global fits Collaborators: Theory: A.Accardi, K.Kovarik, W.Melnitchouk,
More informationProbing nucleon structure by using a polarized proton beam
Workshop on Hadron Physics in China and Opportunities with 12 GeV Jlab July 31 August 1, 2009 Physics Department, Lanzhou University, Lanzhou, China Probing nucleon structure by using a polarized proton
More informationNucleon Spin Structure from Confinement to Asymptotic Freedom
21 September 2009 QNP09 Beijing Nucleon Spin Structure from Confinement to Asymptotic Freedom K. Griffioen College of William & Mary griff@physics.wm.edu 5th International Conference on Quarks in Nuclear
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 informationCT14 Intrinsic Charm Parton Distribution Functions from CTEQ-TEA Global Analysis
CT14 Intrinsic Charm Parton Distribution Functions from CTEQ-TEA Global Analysis Sayipjamal Dulat On behalf of the CTEQ-TEA collaboration 7th Workshop of the APS Topical Group on Hadronic Physics Washington
More informationCollinear Distributions from Monte Carlo Global QCD Analyses
Collinear Distributions from Monte Carlo Global QCD Analyses Jacob Ethier On behalf of the JAM Collaboration Light Cone Conference May th, 8 Motivation Want to obtain reliable information of nonperturbative
More informationMeasurement Using Polarized e + /e Beams
C 3q Measurement Using Polarized e + /e Beams Xiaochao Zheng Univ. of Virginia March 7, 009 Introduction Standard Model of Electroweak Interaction Neutral Weak Coupling Constants Test of the Standard Model
More informationParity Violating Electron Scattering at Jefferson Lab. Rakitha S. Beminiwattha Syracuse University
Parity Violating Electron Scattering at Jefferson Lab Rakitha S. Beminiwattha Syracuse University 1 Outline Parity Violating Electron Scattering (PVES) overview Testing the Standard Model (SM) with PVES
More informationarxiv: v1 [hep-ph] 12 Sep 2016
DESY 16-121, DO-TH 16/25 The new ABMP16 PDFs arxiv:1609.03327v1 [hep-ph] 12 Sep 2016 II. Institut für Theoretische Physik, Universität Hamburg, Luruper Chaussee 149, D-22761 Hamburg, Germany; Institute
More informationHadron Mass Effects on Kaon Multiplicities: HERMES vs. COMPASS
Hadron Mass Effects on Kaon Multiplicities: HERMES vs. COMPASS Juan Guerrero Hampton University & Jefferson Lab QCD evolution 2017 May 26, 2017 Based on: J. G., J. Ethier, A. Accardi, S. Casper,W. Melnitchouk,
More informationStrange Sea Contribution to the Nucleon Spin
Strange Sea Contribution to the Nucleon Spin Fatiha Benmokhtar Carnegie ellon University USA with A. l Alaoui Alaoui (LPC renoble France H. Avakian (JlabUSA K. Hafidi (ANL USA F. Benmokhtar RICH workshop
More informationTransverse Target Asymmetry in Exclusive Charged Pion Production at 12 GeV
Transverse Target Asymmetry in Exclusive Charged Pion Production at 12 GeV Dipangkar Dutta Mississippi State University (with Dave Gaskell & Garth Huber) Polarized Target Workshop: June 17-18, 2010 Outline
More informationWhat are the Low-Q and Large-x Boundaries of Collinear QCD Factorization Theorems?
What are the Low-Q and Large-x Boundaries of Collinear QCD Factorization Theorems? Presented by Eric Moffat Paper written in collaboration with Wally Melnitchouk, Ted Rogers, and Nobuo Sato arxiv:1702.03955
More informationRadiative Corrections in Free Neutron Decays
Radiative Corrections in Free Neutron Decays Chien-Yeah Seng Helmholtz-Institut für Strahlen- und Kernphysik and Bethe Center for Theoretical Physics, Universität Bonn Beta Decay as a Probe of New Physics
More informationarxiv: v2 [hep-ph] 4 Jul 2013
NPAC-12-15 Parity Violating Deep Inelastic Electron-Deuteron Scattering: Higher Twist and Parton Angular Momentum Chien-Yeah Seng a and Michael J. Ramsey-Musolf a,b a University of Wisconsin-Madison, Madison,
More informationHelicity: Experimental Status. Matthias Grosse Perdekamp, University of Illinois
Helicity: Experimental Status Matthias Grosse Perdekamp, University of Illinois Content o The Experimental Effort o Quark and Sea Quark Helicity è DIS, SIDIS, pp è new FFs for global analysis è results
More informationQCD at the Tevatron: The Production of Jets & Photons plus Jets
QCD at the Tevatron: The Production of Jets & Photons plus Jets Mike Strauss The University of Oklahoma The Oklahoma Center for High Energy Physics for the CDF and DØD Collaborations APS 2009 Denver, Colorado
More informationWhat Have We Learned from Electron Deep Inelastic Scattering?
What Have We Learned from Electron Deep Inelastic Scattering? Xiaochao Zheng Univ. of Virginia October 31, 2011 Introduction the four interactions, the Standard Model, and the role of electron scattering
More informationFundamental Open Questions in Spin Physics
Fundamental Open Questions in Spin Physics p. 1/55 Fundamental Open Questions in Spin Physics Jacques Soffer Physics Department, Temple University, Philadelphia,PA, USA Fundamental Open Questions in Spin
More informationPreparations for BONuS12 experiment
Preparations for BONuS12 experiment Aruni Nadeeshani Hampton University On behalf of BONuS12 Detector design group CLAS collaboration- Deep processing working group 8 March 2018 1 Outline Overview of BONuS12
More informationNucleon Spin Structure: Overview
Nucleon Spin Structure: Overview Jen-Chieh Peng University of Illinois at Urbana-Champaign Workshop on Spin Structure of Nucleons and Nuclei from Low to High Energy Scales EINN2015, Paphos, Cyprus, Nov.
More informationQuark-Hadron Duality in DIS Form Factors and. Drell-Yan Antiquark Flavor Asymmetries
Quark-Hadron Duality in DIS Form Factors and Peter Ehlers University of Minnesota, Morris University of Washington Mentor: Wally Melnitchouk Table of Contents 1 Quark-Hadron Duality in DIS Form Factors
More informationResults on the proton structure from HERA
Results on the proton structure from HERA Shima Shimizu (CERN) 7/Jan/ @ KEK The world only e-p collider: HERA electron proton A unique collider at DESY, Hamburg H ZEUS Circumference: 6.3 km Operated since
More informationSymmetry Tests in Nuclear Physics
Symmetry Tests in Nuclear Physics Krishna Kumar University of Massachusetts Editorial Board: Parity Violation: K. K, D. Mack, M. Ramsey-Musolf, P. Reimer, P. Souder Low Energy QCD: B. Bernstein, A. Gasparian,
More informationThe Qweak experiment: a precision measurement of the proton s weak charge
The Qweak experiment: a precision measurement of the proton s weak charge R. D. Carlini Jefferson Lab, 1000 Jefferson Avenue, Newport News, Virginia 3606, USA Abstract. The Qweak experiment [1] will conduct
More informationFlavor Decomposition of Nucleon Spin via polarized SIDIS: JLab 12 GeV and EIC. Andrew Puckett Los Alamos National Laboratory INT 09/24/2010
Flavor Decomposition of Nucleon Spin via polarized SIDIS: JLab 12 GeV and EIC Andrew Puckett Los Alamos National Laboratory INT 09/24/2010 Outline Nucleon Structure Nucleon spin structure Flavor decomposition
More informationThe strange asymmetry of the proton sea
The strange asymmetry of the proton sea J. Magnin CBPF Brazilian Center for Research in Physics XII Mexican Workshop on Particles and Fields Mazatlán, Mexico Outline Introduction The structure of the proton
More informationWhat are the Low-Q and Large-x Boundaries of Collinear QCD Factorization Theorems?
What are the Low-Q and Large-x Boundaries of Collinear QCD Factorization Theorems? Presented by Eric Moffat Old Dominion University Paper written in collaboration with Wally Melnitchouk, Ted Rogers, and
More informationarxiv: v4 [hep-ph] 9 Jul 2015
New analysis concerning the strange quark polarization puzzle arxiv:1410.1657v4 [hep-ph] 9 Jul 2015 Elliot Leader Imperial College London Prince Consort Road, London SW7 2BW, England Alexander V. Sidorov
More informationThe transition from pqcd to npqcd
The transition from pqcd to npqcd A. Fantoni (INFN - Frascati) First Workshop on Quark-Hadron Duality and the Transition to pqcd Laboratori Nazionali di Frascati, Italy June 6-8, 2005 Introduction Overview
More informationDeuteron from CLAS/EG1B Data. Spin Structure Functions of the OUTLINE. Nevzat Guler (for the CLAS Collaboration) Old Dominion University
Spin Structure Functions of the Deuteron from CLAS/EGB Data Nevzat Guler (for the CLAS Collaboration) Old Dominion University OULINE Formalism Experimental setup Data analysis Results and Conclusion Motivation
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 informationResults on the proton structure from HERA
Results on the proton structure from HERA Shima Shimizu (Univ. of Tokyo) Introduction HERA physics Proton structure The world only e-p collider: HERA electron proton A unique collider at DESY, Hamburg
More informationFactorization, Evolution and Soft factors
Factorization, Evolution and Soft factors Jianwei Qiu Brookhaven National Laboratory INT Workshop: Perturbative and nonperturbative aspects of QCD at collider energies University of Washington, Seattle,
More informationQCD Collinear Factorization for Single Transverse Spin Asymmetries
INT workshop on 3D parton structure of nucleon encoded in GPD s and TMD s September 14 18, 2009 QCD Collinear Factorization for Single Transverse Spin Asymmetries Iowa State University Based on work with
More informationImpact of SoLID Experiment on TMDs
Impact of SoLID Experiment on TMDs QCD Evolution 2017 @ Jefferson Lab, Newport News May 22-26 th 2017 Tianbo Liu Duke University and Duke Kunshan University In collaboration with: N. Sato, A. Prokudin,
More informationSpin Structure with JLab 6 and 12 GeV
Spin Structure with JLab 6 and 12 GeV Jian-ping Chen ( 陈剑平 ), Jefferson Lab, USA 4 th Hadron Workshop / KITPC Program, Beijing, China, July, 2012 Introduction Selected Results from JLab 6 GeV Moments of
More informationCentral Questions in Nucleon Structure
Central Questions in Nucleon Structure Werner Vogelsang BNL Nuclear Theory QCD and Hadron Physics Town Meeting, 01/13/2007 Exploring the nucleon: Of fundamental importance in science Know what we are made
More informationMeasurement of the jet production properties at the LHC with the ATLAS Detector
Measurement of the jet production properties at the LHC with the ALAS Detector Stanislav okar Comenius University, Bratislava On behalf of the ALAS collaboration Different features of the jet production
More informationResearch in QCD factorization
Research in QCD factorization Bowen Wang Southern Methodist University (Dallas TX) Jefferson Lab Newport News VA 1/1/015 My research at SMU in 011-015 Ph. D. advisor: Pavel Nadolsky Ph. D. thesis: The
More informationScale dependence of Twist-3 correlation functions
Scale dependence of Twist-3 correlation functions Jianwei Qiu Brookhaven National Laboratory Based on work with Z. Kang QCD Evolution Workshop: from collinear to non collinear case Thomas Jefferson National
More informationSingle Spin Asymmetry at large x F and k T
1 Single Spin Asymmetry at large x F and k T Paul Hoyer University of Helsinki Workshop on Transverse momentum, spin, and position distributions of partons in hadrons ECT*, 11-15 June 2007 PH and M. Järvinen,
More informationW/Z + jets and W/Z + heavy flavor production at the LHC
W/Z + jets and W/Z + heavy flavor production at the LHC A. Paramonov (ANL) on behalf of the ATLAS and CMS collaborations Moriond QCD 2012 Motivation for studies of jets produced with a W or Z boson Standard
More informationTransversity experiment update
Transversity experiment update Hall A collaboration meeting, Jan 20 2016 Xuefei Yan Duke University E06-010 Collaboration Hall A collaboration The Incomplete Nucleon: Spin Puzzle 1 2 = 1 2 ΔΣ + L q + J
More informationShape and Structure of the Nucleon
Shape and Structure of the Nucleon Volker D. Burkert Jefferson Lab Science & Technology Peer Review June 25-27, 2003 8/7/2003June 25, 2003 Science & Technology Review 1 Outline: From form factors & quark
More informationIntroduction to Quantum Chromodynamics (QCD)
Introduction to Quantum Chromodynamics (QCD) Jianwei Qiu Theory Center, Jefferson Lab May 29 June 15, 2018 Lecture One The plan for my four lectures q The Goal: To understand the strong interaction dynamics
More informationRecent results on DVCS from Hall A at JLab
Recent results on DVCS from Hall A at JLab Carlos Muñoz Camacho IPN-Orsay, CNRS/IN2P3 (France) Spatial and Momentum Tomography of Hadrons and Nuclei INT-17-3 Sep 5, 2017 Carlos Muñoz Camacho (IPN-Orsay)
More informationSmall angle (Low Q 2 ) GDH sum rule experiments
Small angle (Low Q 2 ) GDH sum rule experiments A. Deur Jefferson Lab. Outline: Sum rules, GDH, Bjorken, spin polarizability sum rules; Usefulness and context; Measurements (published, being analyzed,
More informationA Precision Measurement of Elastic e+p Beam Normal Single Spin Asymmetry and Other Transverse Spin Measurements from Qweak
A Precision Measurement of Elastic e+p Beam Normal Single Spin Asymmetry and Other Transverse Spin Measurements from Qweak Buddhini P. Waidyawansa For the Qweak Collaboration JLab Users Group Meeting June
More informationPseudo-Distributions on the Lattice
Pseudo-Distributions on the Lattice Joe Karpie William & Mary / Jefferson Lab In Collaboration with Kostas Orginos (W&M / JLab) Anatoly Radyushkin (Old Dominion U / JLab) Savvas Zafeiropoulos (Heidelberg
More informationProton PDFs constraints from measurements using the ATLAS experiment
Nuclear and Particle Physics Proceedings 00 (08) 6 Nuclear and Particle Physics Proceedings Proton PDFs constraints from measurements using the eperiment F. Giuli a a University of Oford, Keble Road, OX
More informationTwo-boson exchange corrections in PVES
Two-boson exchange corrections in PVS Chung-Wen Kao Chung-Yuan Christian University, Taiwan 12th International Conference on eson-nucleon Physics and the Structure of the Nucleon ay 31-June 4, 2010 College
More informationTopics on QCD and Spin Physics
Topics on QCD and Spin Physics (sixth lecture) Rodolfo Sassot Universidad de Buenos Aires HUGS 21, JLAB June 21 Spin (revisited)? naive quark spin parton spin QCD parton spin polarized DIS:? EMC experiment:
More informationNuclear GPDs and DVCS in Collider kinematics. Vadim Guzey. Theory Center, Jefferson Lab. Outline
Nuclear GPDs and DVCS in Collider kinematics Vadim Guzey Theory Center, Jefferson Lab Introduction Outline Nuclear PDFs Nuclear GPDs Predictions for DVCS Conclusions Introduction e(k ) Deeply Virtual Compton
More informationTwo Photon Exchange in Inclusive and Semi Inclusive DIS
Two Photon Exchange in Inclusive and Semi Inclusive DIS Marc Schlegel Theory Center, Jefferson Lab In collaboration with Christian Weiss, Andrei Afanasev, Andreas Metz Two Photon Exchange in elastic scattering
More informationElectroweak Physics and Searches for New Physics at HERA
Electroweak Physics and Searches for New Physics at HERA Uwe Schneekloth DESY On behalf of the H1 and ZEUS Collaborations 14th Lomonosov Conference on Elementary Particle Physics 5.08.009 Outline Introduction
More informationSpin dependent en cross section at small and medium Q2
NuInt04@Gran Sasso, 004/03/18 Session 3, Talk ID 3.5 Spin dependent en cross section at small and medium Q Contents: Introduction Kinematic DIS Regime (Q>1GeV, W>4GeV) Small Q Limit (Q=0 GeV) GDH sum rule
More informationGlobal QCD Analysis of Nucleon Structure: Progress and Prospects
Global QCD Analysis of Nucleon Structure: Progress and Prospects Recent Past (say, up to DIS2002): Experiment: More precision DIS measurements (mainly HERA) and Tevatron inclusive jet production (CDF,
More informationDeconstructing the Partonic Origins of the Proton Spin. Renee Fatemi University of Kentucky March 24th, 2016
Deconstructing the Partonic Origins of the Proton Spin Renee Fatemi University of Kentucky March 24th, 2016 The search for the Underlying Mechanisms of Matter drives many areas of science QUARKS are fundamental
More informationMeasurements with Polarized Hadrons
Aug 15, 003 Lepton-Photon 003 Measurements with Polarized Hadrons T.-A. Shibata Tokyo Institute of Technology Contents: Introduction: Spin of Proton Polarized Deep Inelastic Lepton-Nucleon Scattering 1.
More informationTHE NUCLEUS AS A QCD LABORATORY: HADRONIZATION, 3D TOMOGRAPHY, AND MORE
rhtjhtyhy EINN 2017 NOVEMBER 1, 2017 PAPHOS, CYPRUS THE NUCLEUS AS A QCD LABORATORY: HADRONIZATION, 3D TOMOGRAPHY, AND MORE KAWTAR HAFIDI Argonne National Laboratory is a U.S. Department of Energy laboratory
More informationPolarized parton distributions: present status and prospects
QCD@Work 23 - International Workshop on QCD, Conversano, Italy, 14 18 June 23 Polarized parton distributions: present status and prospects Giovanni Ridolfi a a INFN Sezione di Genova, Via Dodecaneso 33,
More informationGluons at high x in Nuclei at EIC
Gluons at high x in Nuclei at EIC in collaboration with: E. Chudakov, D. Higinbotham, C. Hyde, C. Weiss Jefferson Lab DNP 2015 Fall meeting, Santa Fe, NM Outline Motivation HERA and ZEUS experience EIC
More informationThe Neutron Structure Function from BoNuS
The Neutron Structure Function from BoNuS Stephen Bültmann 1 Physics Department, Old Dominion University, Norfolk, VA 359, USA Abstract. The BoNuS experiment at Jefferson Lab s Hall B measured the structure
More informationCoherent and Incoherent Nuclear Exclusive Processes
Coherent and Incoherent Nuclear Exclusive Processes Vadim Guzey Electron-Ion Collider Workshop: Electron-Nucleon Exclusive Reactions Rutgers University, March 14-15, 2010 Outline Coherent and incoherent
More informationHigh-energy ea scattering. Spectator nucleon tagging. Future facilities. Energy, luminosity, polarization. Physics objectives with light nuclei
High-energy nuclear physics with spectator tagging A. Deshpande, D. Higinbotham, Ch. Hyde, S. Kuhn, M. Sargsian, C. Weiss Topical Workshop, Old Dominion U., 9 11 March 015 High-energy ea scattering e e
More informationSPIN STRUCTURE OF THE NUCLEON AND POLARIZATION. Charles Y. Prescott Stanford Linear Accelerator Center Stanford University, Stanford CA 94309
SLAC-PUB-662 September 1994 (TE) SPIN STRUCTURE OF THE NUCLEON AND POLARIZATION Charles Y. Prescott Stanford Linear Accelerator Center Stanford University, Stanford CA 9439 Work supported by Department
More informationQuark/gluon orbital motion and nucleon spin. Alexei Prokudin. JLab December 8, Alexei Prokudin,
Quark/gluon orbital motion and nucleon spin Alexei Prokudin JLab December 8, 20 EIC Golden Topic # 2 talk Bob McKeown @ INT workshop Map the spin and spatial quark-gluon structure of nucleons Image the
More informationDispersion corrections to QWEAK and PREx
Dispersion corrections to QWEAK and PREx Mikhail Gorshteyn Nuclear Theory Center & Indiana University, Bloomington PREx Workshop, ECT* Trento, August 3-7, 9 Outline Precision electroweak physics: points
More informationQCD at hadron colliders Lecture 3: Parton Distribution Functions
QCD at hadron colliders Lecture : Parton Distribution Functions Gavin Salam CERN, Princeton & LPTHE/CNRS (Paris) Maria Laach Herbtschule für Hochenenergiephysik September, Germany QCD lecture (p. ) PDF
More informationProgress in CTEQ-TEA (Tung et al.) PDF Analysis
Progress in CTEQ-TEA (Tung et al.) PDF Analysis Sayipjamal Dulat Xinjiang University University In collaboration with CTEQ-TEA Group April 4, 2016 QCD Study Group CTEQ-TEA group CTEQ Tung et al. (TEA)
More informationPion structure from leading neutron electroproduction
Net Generation Nuclear Physics with JLab12 and EIC Florida International University February 1, 216 Pion structure from leading neutron electroproduction Wally Melnitchouk with Chueng Ji (NCSU), Josh McKinney
More informationThe Physics of Jefferson Lab 12 GeV Upgrade
The Physics of Jefferson Lab 12 GeV Upgrade Xiaochao Zheng (Univ. of Virginia) Nov. 3, 2010 Jefferson Lab: its mission and current status The Physics from 6 to 12 GeV: A few selected topics Current status
More informationarxiv:hep-ph/ v1 13 Oct 2004
arxiv:hep-ph/0410184v1 13 Oct 2004 σ DIS (νn), NLO Perturbative QCD and O(1 GeV) Mass Corrections S. Kretzer a and M. H. Reno b a Physics Department and RIKEN-BNL Research Center, Bldg. 510a, Brookhaven
More informationarxiv: v1 [hep-ph] 3 Jul 2007
Target mass corrections and twist-3 in the nucleon spin structure functions Y. B. Dong Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 149, P. R. China arxiv:77.331v1 [hep-ph] 3
More informationDouble-Longitudinal Spin Asymmetry in Single- Inclusive Lepton Scattering
QCD Evolution 2017, JLab, May 22-26, 2017 Double-Longitudinal Spin Asymmetry in Single- Inclusive Lepton Scattering Marc Schlegel Institute for Theoretical Physics University of Tübingen in collaboration
More informationQCD Factorization and Transverse Single-Spin Asymmetry in ep collisions
QCD Factorization and Transverse Single-Spin Asymmetry in ep collisions Jianwei Qiu Brookhaven National Laboratory Theory seminar at Jefferson Lab, November 7, 2011 Jefferson Lab, Newport News, VA Based
More information