December 17, 2004 JLab Hall A Upgrade 1 Semi-Inclusive DIS --opportunities at JLab upgrade Feng Yuan RBRC, Brookhaven National Laboratory.

Slides:

Advertisements

Similar presentations

Study Neutron Spin Structure with a Solenoid Jian-ping Chen, Jefferson Lab Hall A Collaboration Meeting June 22-23, 2006 Inclusive DIS: Valence quark spin.

Advertisements

Transversity: Opportunities Now and Future

1 Como, September 7, 2005 Aram Kotzinian Cahn and Sivers effects in the target fragmentation region of SIDIS Introduction Hadronization in SIDIS Cahn and.

1 Transversity Physics Update Jen-Chieh Peng Polarized 3 He and Tansversity Collaboration Meeting, JLab, October 21-22, 2005 University of Illinois at.

Mauro Anselmino, Torino University and INFN, Vancouver, July 31, 2007 The transverse spin structure of the nucleon.

Quantum Phase-Space Quark Distributions in the Proton Xiangdong Ji University of Maryland — EIC workshop, Jefferson Lab, March 16, 2004 —

April 06, 2005 JLab 12 GeV upgrade DOE Science Review 1 Fundamental Structure of Hadrons Zein-Eddine Meziani April 06, 2005 DOE Science Review for JLab.

Transversity and Transverse-Momentum-Dependent Partonic Functions Alessandro Bacchetta.

June 21, 2005 RHIC & AGS USER MEETING-SPIN 1 (Single) Transverse Spin Physics -- from DIS to hadron collider Feng Yuan, RBRC, Brookhaven National Laboratory.

QCD Map of the Proton Xiangdong Ji University of Maryland.

Wigner Functions; P T -Dependent Factorization in SIDIS Xiangdong Ji University of Maryland — COMPASS Workshop, Paris, March 1-3, 2004 —

Xiangdong Ji University of Maryland/SJTU Physics of gluon polarization Jlab, May 9, 2013.

9/19/20151 Nucleon Spin: Final Solution at the EIC Feng Yuan Lawrence Berkeley National Laboratory.

9/19/20151 Semi-inclusive DIS: factorization Feng Yuan Lawrence Berkeley National Laboratory RBRC, Brookhaven National Laboratory.

THE DEEP INELASTIC SCATTERING ON THE POLARIZED NUCLEONS AT EIC E.S.Timoshin, S.I.Timoshin.

Spin Azimuthal Asymmetries in Semi-Inclusive DIS at JLAB  Nucleon spin & transverse momentum of partons  Transverse-momentum dependent distributions.

Quark Helicity Distribution at large-x Collaborators: H. Avakian, S. Brodsky, A. Deur, arXiv: [hep-ph] Feng Yuan Lawrence Berkeley National Laboratory.

High-Energy QCD Spin Physics Xiangdong Ji Maryland Center for Fundamental Physics University of Maryland DIS 2008, April 7, 2008, London.

1 Transversely polarized target for CLAS and CLAS12  Introduction  Structure of nucleon and 3D parton distributions  Semi-Inclusive processes and TMD.

Spin-Flavor Decomposition J. P. Chen, Jefferson Lab PVSA Workshop, April 26-27, 2007, Brookhaven National Lab  Polarized Inclusive DIS,  u/u and  d/d.

Detector requirement form TMD working group J. P. Chen for the TMD working group June 5, 2010, EIC Detector Workshop, JLab TMD Program - A lot of enthusiasm,

Spin and azimuthal asymmetries in SIDIS at JLAB  Physics Motivation  Jlab kinematics and factorization  Double spin asymmetries  Single Spin Asymmetries.

New results on SIDIS SSA from JLab  Physics Motivation  Double spin asymmetries  Single Spin Asymmetries  Future measurements  Summary H. Avakian.

P. Bosted, DNP Spin and azimuthal asymmetries in SIDIS at JLAB  Physics Motivation  Jlab kinematics and factorization  Single Spin Asymmetries.

Single (transverse) Spin Asymmetry & QCD Factorization Single (transverse) Spin Asymmetry & QCD Factorization Xiangdong Ji University of Maryland — Workshop.

May 18-20, 2005 SIR05 JLab 1 P ? Dependence of SSA -- from nonpert. to pert. Feng Yuan, RBRC, Brookhaven National Laboratory References: Ji, Ma, Yuan,

Zhongbo Kang Los Alamos National Laboratory QCD structure of the nucleon and spin physics Lecture 5 & 6: TMD factorization and phenomenology HUGS 2015,

Relations between single and double transverse asymmetries Transversity-05, Como, September O. Teryaev JINR, Dubna.

Generalized Parton Distributions and Nucleon Structure Volker D. Burkert Jefferson Lab DOE Science Review for the JLab Upgrade to 12 GeV, Jefferson Lab,

Harut Avakian 1 H. Avakian, JLab, Sep 5 Rich Technical Review, 5 th September 2013 Kaon physics with CLAS12 Introduction Kaons in SIDIS Medium effects.

Transverse Spin Physics: Recent Developments

Single-Spin Asymmetries at CLAS  Transverse momentum of quarks and spin-azimuthal asymmetries  Target single-spin asymmetries  Beam single-spin asymmetries.

PQCD mechanisms for single (transverse) spin asymmetry in Drell-Yan production PQCD mechanisms for single (transverse) spin asymmetry in Drell-Yan production.

Measurements with Polarized Hadrons T.-A. Shibata Tokyo Institute of Technology Aug 15, 2003 Lepton-Photon 2003.

1 Harut Avakian Studies on transverse spin effects at Jlab QCD Structure of the Nucleon June 12-16, 2006, Rome Physics motivation k T -effects from unpolarized.

International Workshop on Transversity: New Developments in Nucleon Spin Structure June 2004 Color Gauge Invariance in Hard Processes Vrije Universiteit.

Thomas Jefferson National Accelerator Facility Operated by the Southeastern Universities Research Association for the U.S. Department of Energy Anthony.

2/10/20161 What can we learn with Drell-Yan in p(d)-nucleus collisions Feng Yuan Lawrence Berkeley National Laboratory RBRC, Brookhaven National Laboratory.

1 Harut Avakian Jefferson Lab Studies of transverse spin effects at JLab Transversity 2005, Como, September 7-10, 2005 * In collaboration with P.Bosted,

Wigner distributions and quark orbital angular momentum Cédric Lorcé and May , JLab, Newport News, VA, USA.

Single spin asymmetries in pp scattering Piet Mulders Trento July 2-6, 2006 _.

3/8/20161 Nucleon Tomography --Parton Imaging in 3D Feng Yuan Lawrence Berkeley National Laboratory.

6/28/20161 Future Challenges of Spin Physics Feng Yuan Lawrence Berkeley National Laboratory.

11/19/20161 Transverse Momentum Dependent Factorization Feng Yuan Lawrence Berkeley National Laboratory RBRC, Brookhaven National Laboratory.

Nucleon spin decomposition

Single-Transverse Spin Asymmetries in Hadronic Scattering

Probing strangeness in hard processes Laboratori Nazionali di Frascati

Theory : phenomenology support 12 GeV

Accessing the gluon Wigner distribution in ep and pA collisions

Measurements of quark transversity and orbital motion in hard scattering Yoshiyuki Miyachi Tokyo Institute of Technology.

3/19/20181 Nucleon Spin: Final Solution at the EIC Feng Yuan Lawrence Berkeley National Laboratory.

Semi-inclusive DIS at Small-x

Semi-inclusive DIS at 12 GeV

Can We Learn Quark Orbital Motion from SSAs?

Transverse Momentum Dependent Parton Distributions

Unique Description for SSAs in DIS and Hadronic Collisions

Selected Physics Topics at the Electron-Ion-Collider

Single Spin Asymmetries: from JLab12 to EIC

The transverse spin structure of the nucleon

Searching for intrinsic motion effects in SIDIS

TMDs in nuclei Jian Zhou Temple University

高能物理学会第八届全国会员代表大会暨学术年会

Unique Description for Single Transverse Spin Asymmetries

Spin effects and partonic intrinsic k┴

Unifying the Mechanisms for SSAs in Hard Process

SSA in the target fragmentation region of SIDIS

Universality of single spin asymmetries in hard processes

Single spin asymmetries in semi-inclusive DIS

New results on SIDIS SSA from JLab

The Helicity Structure of the Nucleon from Lepton Nucleon Scattering

Presentation transcript:

December 17, 2004 JLab Hall A Upgrade 1 Semi-Inclusive DIS --opportunities at JLab upgrade Feng Yuan RBRC, Brookhaven National Laboratory

December 17, JLab Hall A Upgrade Outline Introduction Introduction Low P ? SIDIS (TMD) Low P ? SIDIS (TMD) High P ? SIDIS (Quark-gluon correlations) High P ? SIDIS (Quark-gluon correlations) Integrated SIDIS (Flavor decomposition) Integrated SIDIS (Flavor decomposition) Summary Summary

December 17, JLab Hall A Upgrade Inclusive and Semi-inclusive DIS Inclusive DIS: Partonic Distribution depending on the longitudinal momentum fraction Semi-inclusive DIS: Probe additional information including the transverse distribution

December 17, JLab Hall A Upgrade Different P ? Region Integrate out P ? Integrate out P ? -- normal factorization, similar to inclusive DIS Large P ? ( À QCD ) Large P ? ( À QCD ) -- hard gluon radiation, can be calculated from perturbative QCD, factorization similar to inclusive DIS Low P ? ( » QCD ) Low P ? ( » QCD ) -- nonperturbative information: new factorization formula ? ! 12GeV 12GeV

December 17, JLab Hall A Upgrade Semi-Inclusive DIS at Low P ? Transverse Momentum Dependent (TMD) Parton Distributions Transverse Momentum Dependent (TMD) Parton Distributions Novel Single Spin Asymmetries Novel Single Spin Asymmetries

December 17, JLab Hall A Upgrade TMD Parton Distributions The gauge invariant definition The gauge invariant definition Belitsky, Ji, Yuan (03)

December 17, JLab Hall A Upgrade Polarized TMD Quark Distributions Quark Nucleon Unpol. Long. Trans. Unpol.Long.Trans. q(x, k ) q T (x, k ) Δq L (x, k ) Δq T (x, k ) δq(x, k ) δq L (x, k ) δq L (x, k ) δq T (x, k ) δq T (x, k ) δq T '(x, k ) Boer, Mulders, Tangerman (96&98)

December 17, JLab Hall A Upgrade The Physics We can learn from TMD Internal structure, transverse momentum dis. Internal structure, transverse momentum dis. Quark Orbital Angular Momentum Quark Orbital Angular Momentum e.g, Sivers function ~ the wave function amplitude with orbital angular momentum! Vanishes if quarks only in s-state! e.g, Sivers function ~ the wave function amplitude with orbital angular momentum! Vanishes if quarks only in s-state! Friends: Friends: Pauli Form Factor F 2 (t) Pauli Form Factor F 2 (t) Spin-dependent structure function g 2 (x) Spin-dependent structure function g 2 (x) Generalized Parton Distribution E(x, ξ, t) Generalized Parton Distribution E(x, ξ, t)

December 17, JLab Hall A Upgrade Connection between TMD and GPD Wigner distributions Wigner distributions After integrating over r, one gets TMD After integrating over r, one gets TMD After integrating over k, one gets Fourier transform of GPDs After integrating over k, one gets Fourier transform of GPDs Ji: PRL91,062001(2003)

December 17, JLab Hall A Upgrade SIDIS Cross Section At leading power of 1/Q The structure functions depend on Q 2, x B, z, P h?

December 17, JLab Hall A Upgrade Low P ? SIDIS Factorization Ji, Ma, Yuan, hep-ph/ ,hep-ph/

December 17, JLab Hall A Upgrade SIDIS: at Large P ? Large P ? SIDIS can be calculated from perturbative QCD Large P ? SIDIS can be calculated from perturbative QCD Polarized scattering will provide information on the quark-gluon correlations in the nucleon Polarized scattering will provide information on the quark-gluon correlations in the nucleon Single Spin Asymmetry at large P ? is not suppressed by 1/Q, but by 1/P ? Single Spin Asymmetry at large P ? is not suppressed by 1/Q, but by 1/P ? With enough luminosities, we could measure these asymmetries at large P ? at JLab 12GeV? With enough luminosities, we could measure these asymmetries at large P ? at JLab 12GeV?

December 17, JLab Hall A Upgrade SSA at Large P ? Qiu-Sterman mechanism Qiu-Sterman mechanism It is suppressed by 1/P ? It is suppressed by 1/P ? Efremov & Teryaev: 1982 & 1984 Qiu & Sterman: 1991 & 1999 Quark-gluon correlations

December 17, JLab Hall A Upgrade Transition from Perturbative region to Nonperturbative region? Compare different region of P ? Compare different region of P ? Nonperturbative TMDPerturbative region

December 17, JLab Hall A Upgrade SIDIS: Integrated over P ? The factorization formulas are much simpler The factorization formulas are much simpler Flavor decomposition for (polarized) PDF Flavor decomposition for (polarized) PDF Frankfurt et al 89; Melnitchouk et al 98, HERMES, EMC… NLO: de Florian et al 96-98; Leader et al 01; Kretzer 04 Altarelli et al 79 (NLO)

December 17, JLab Hall A Upgrade Flavor Decomposition for PDF (Leading Order) In the valence region (large x), In the valence region (large x), Isospin relation, Isospin relation, D u + =D d -, favored; D u - =D d +, unfavored; D u - << D u +

December 17, JLab Hall A Upgrade favored unfavored Well described by leading particle ansatz Stefan Kretzer

December 17, JLab Hall A Upgrade Continue, Similarly, from the polarized scattering, Similarly, from the polarized scattering, d/u at large x!!

December 17, JLab Hall A Upgrade Summary Semi-inclusive DIS at JLab upgrade provides various opportunities to study nucleon structure Semi-inclusive DIS at JLab upgrade provides various opportunities to study nucleon structure Low P ? probes TMD parton distributions Low P ? probes TMD parton distributions High P ? probes quark-gluon correlations ? High P ? probes quark-gluon correlations ? Integrated P ? probes flavor decomposition of PDFs, especially for large x quark and helicity distributions. Integrated P ? probes flavor decomposition of PDFs, especially for large x quark and helicity distributions.