Final state interactions and the extraction of neutron single spin asymmetries from semi-inclusive deep-inelastic scattering by a transversely polarized 3He target

被引：5

作者：

Del Dotto, A. ^{[1
,2
]}

Kaptari, L. P. ^{[3
]}

Pace, E. ^{[4
,5
]}

Salme, G. ^{[1
]}

Scopetta, S. ^{[6
,7
]}

机构：

[1] Ist Nazl Fis Nucl, Sez Roma, Piazzale A Moro 2, I-00185 Rome, Italy

[2] Univ South Carolina, Columbia, SC 29208 USA

[3] JINR, Bogoliubov Lab Theoret Phys, Dubna 141980, Russia

[4] Univ Roma Tor Vergata, Phys Dept, Via Ric Sci 1, I-00133 Rome, Italy

[5] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, Via Ric Sci 1, I-00133 Rome, Italy

[6] Univ Perugia, Dept Phys & Geol, Via A Pascoli, I-06123 Perugia, Italy

[7] Ist Nazl Fis Nucl, Sez Perugia, Via A Pascoli, I-06123 Perugia, Italy

来源：

PHYSICAL REVIEW C | 2017年 / 96卷 / 06期

关键词：

ELECTRONS; MOMENTUM; QUARKS;

D O I：

10.1103/PhysRevC.96.065203

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The semi-inclusive deep-inelastic electron scattering off transversely polarized He-3, i.e., the process e + (3)(H) over right arrowe -> e' + h + X, with h being a detected fast hadron, is studied beyond the plane-wave impulse approximation. To this end, a distorted spin-dependent spectral function of a nucleon inside an A = 3 nucleus is actually evaluated through a generalized eikonal approximation, in order to take into account the final state interactions between the hadronizing system and the (A - 1) nucleon spectator one. Our realistic description of both nuclear target and final state is a substantial step forward for achieving a reliable extraction of the Sivers and Collins single spin asymmetries of the free neutron. To illustrate how and to what extent the model dependence due to the treatment of the nuclear effects is under control, we apply our approach to the extraction procedure of the neutron single spin asymmetries from those measured for He-3 for values of the kinematical variables relevant both for forthcoming experiments at Jefferson Laboratory and, with an exploratory purpose, for the future Electron Ion Collider.

引用

页数：24

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