Angular dependences in electroweak semi-inclusive leptoproduction

被引：48

作者：

Boer, D ^{[1
]}

Jakob, R

Mulders, PJ

机构：

[1] Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA

[2] Univ Pavia, I-27100 Pavia, Italy

[3] Ist Nazl Fis Nucl, Sez Pavia, I-27100 Pavia, Italy

[4] Free Univ Amsterdam, Dept Phys & Astron, NL-1081 HV Amsterdam, Netherlands

来源：

NUCLEAR PHYSICS B | 2000年 / 564卷 / 03期

关键词：

D O I：

10.1016/S0550-3213(99)00586-6

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We present the leading order unpolarized and polarized cross sections in electroweak semi-inclusive deep inelastic leptoproduction, The azimuthal dependences in the cross section differential in the transverse momentum of the vector boson arise due to intrinsic transverse momenta of the quarks. However, the presented asymmetries are not suppressed by inverse powers of the hard scale. We discuss the different opportunities to measure specific asymmetries as offered by neutral compared to charged current processes and point out the optimal kinematical regions. The present and (proposed) future HERA collider experiments would be most suitable for measuring some of the asymmetries discussed here, especially in case of Lambda production. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：471 / 485

页数：15

共 30 条

[21] TIME-REVERSAL ODD ASYMMETRY IN SEMI-INCLUSIVE LEPTOPRODUCTION IN QUANTUM CHROMODYNAMICS [J].

HAGIWARA, K ;

HIKASA, KI ;

KAI, N .

PHYSICAL REVIEW D, 1983, 27 (01) :84-97

[22]

HUGHES VW, HEPEX9906006

[23] Polarized Lambda's in the current fragmentation region [J].

Jaffe, RL .

PHYSICAL REVIEW D, 1996, 54 (11) :R6581-R6585

[24]

JAKOB R, HEPPH9805410

[25]

Kotzinian A, 1998, EUR PHYS J C, V2, P329, DOI 10.1007/s100520050142

[26]

LIANG ZT, 1993, Z PHYS C PART FIELDS, V57, P527, DOI 10.1007/BF01474349

[27] Quark flavor separation in Λ-baryon fragmentation [J].

Ma, BQ ;

Soffer, J .

PHYSICAL REVIEW LETTERS, 1999, 82 (11) :2250-2253

[28] Analyzing the nucleon spin in weak interaction processes at HERA energies [J].

Maul, M ;

Schafer, A .

PHYSICS LETTERS B, 1997, 390 (1-4) :437-444

[29] The complete tree-level result up to order 1/Q for polarized deep-inelastic leptoproduction [J].

Mulders, PJ ;

Tangerman, RD .

NUCLEAR PHYSICS B, 1996, 461 (1-2) :197-237

[30] The complete tree-level result up to order 1/Q for polarized deep-inelastic leptoproduction (vol 461, pg 197, 1996) [J].

Mulders, PJ ;

Tangerman, RD .

NUCLEAR PHYSICS B, 1997, 484 (1-2) :538-540

← 1 2 3 →