Feasibility Studies for Single Transverse-Spin Asymmetry Measurements at a Fixed-Target Experiment Using the LHC Proton and Lead Beams (AFTER@LHC)

被引：29
作者：
Kikola, Daniel [1 ]
Garcia Echevarria, Miguel [2 ,3 ]
Hadjidakis, Cynthia [4 ]
Lansberg, Jean-Philippe [4 ]
Lorce, Cedric [5 ]
Massacrier, Laure [4 ]
Quintans, Catarina [6 ]
Signori, Andrea [7 ]
Trzeciak, Barbara [8 ]
机构：
[1] Warsaw Univ Technol, Fac Phys, Warsaw, Poland
[2] Univ Barcelona, FQA, Marti & Franques 1, E-08028 Barcelona, Spain
[3] Univ Barcelona, ICCUB, Marti & Franques 1, E-08028 Barcelona, Spain
[4] Univ Paris Saclay, Univ Paris Sud, CNRS, IPNO,IN2P3, F-91406 Orsay, France
[5] Univ Paris Saclay, CNRS, Ecole Polytech, CPhT, Palaiseau, France
[6] LIP, Lisbon, Portugal
[7] Thomas Jefferson Natl Accelerator Facil, Theory Ctr, 12000 Jefferson Ave, Newport News, VA 23606 USA
[8] Univ Utrecht, Inst Subat Phys, Utrecht, Netherlands
来源：
FEW-BODY SYSTEMS | 2017年 / 58卷 / 04期
关键词：
DOUBLE-QUARKONIUM PRODUCTION; ANALYZING-POWER; PP COLLISIONS; HARD-SCATTERING; PI-0; PRODUCTION; PROMPT CHI(C); GLUON TMDS; POLARIZATION; PHYSICS; AZIMUTHAL;
D O I：
10.1007/s00601-017-1299-x
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The measurement of Single Transverse-Spin Asymmetries, A(N), for various quarkonium states and Drell-Yan lepton pairs can shed light on the orbital angular momentum of quarks and gluons, a fundamental ingredient of the proton-spin puzzle. The AFTER@LHC proposal combines a unique kinematic coverage and large luminosities thanks to the Large Hadron Collider beams to deliver precise measurements, complementary to the knowledge provided by collider experiments such as at RHIC. In this paper, we report on sensitivity studies for J/psi, gamma and Drell-Yan A(N) done using the performance of LHCb-like or ALICE-like detectors, combined with polarised gaseous hydrogen and helium-3 targets. In particular, such analyses will provide us with new insights and knowledge about transverse-momentum-dependent parton distribution functions for quarks and gluons and on twist-3 collinear matrix elements in the proton and the neutron.
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页数：13
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