Charge symmetry breaking in spin-dependent parton distributions and the Bjorken sum rule

被引：10

作者：

Cloet, I. C. ^{[1
]}

Horsley, R. ^{[2
]}

Londergan, J. T. ^{[3
,4
]}

Nakamura, Y. ^{[5
]}

Pleiter, D. ^{[6
,7
]}

Rakow, P. E. L. ^{[8
]}

Schierholz, G. ^{[9
]}

Stueben, H. ^{[10
]}

Thomas, A. W. ^{[1
,11
]}

Winter, F. ^{[2
]}

Young, R. D. ^{[1
,11
]}

Zanotti, J. M. ^{[1
]}

机构：

[1] Univ Adelaide, CSSM, Sch Chem & Phys, Adelaide, SA 5005, Australia

[2] Univ Edinburgh, Sch Phys & Astron, Edinburgh EH9 3JZ, Midlothian, Scotland

[3] Indiana Univ, Dept Phys, Bloomington, IN 47405 USA

[4] Indiana Univ, Ctr Explorat Energy & Matter, Bloomington, IN 47405 USA

[5] RIKEN, Adv Inst Computat Sci, Kobe, Hyogo 6500047, Japan

[6] JSC, D-52425 Julich, Germany

[7] Univ Regensburg, Inst Theoret Phys, D-93040 Regensburg, Germany

[8] Univ Liverpool, Div Theoret Phys, Dept Math Sci, Liverpool L69 3BX, Merseyside, England

[9] Deutsch Elektronen Synchrotron DESY, D-22603 Hamburg, Germany

[10] Konrad Zuse Zentrum Informat Tech Berlin, D-14195 Berlin, Germany

[11] Univ Adelaide, Sch Chem & Phys, Ctr Excellence Particle Phys Terascale, Adelaide, SA 5005, Australia

来源：

PHYSICS LETTERS B | 2012年 / 714卷 / 01期

基金：

美国国家科学基金会; 澳大利亚研究理事会;

关键词：

Nucleon; Spin-dependent quark distribution functions; Lattice; Charge symmetry breaking; NONPERTURBATIVE RENORMALIZATION; INELASTIC SCATTERING; QUARK DISTRIBUTIONS; LATTICE QCD; OPERATORS; NUCLEON; MODEL;

D O I：

10.1016/j.physletb.2012.06.041

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present the first determination of charge symmetry violation (CSV) in the spin-dependent parton distribution functions of the nucleon. This is done by determining the first two Mellin moments of the spin-dependent parton distribution functions of the octet baryons from N-f = 2 + 1 lattice simulations. This exploratory work is performed using a single value of the lattice spacing and volume. The results are compared with predictions from quark models of nucleon structure. We discuss the contribution of partonic spin CSV to the Bjorken sum rule, which is important because the CSV contributions represent the only partonic corrections to the Bjorken sum rule. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：97 / 102

页数：6

共 33 条

[1] The spin-dependent structure function of the proton g1p and a test of the Bjorken sum rule [J].

Alekseev, M. G. ;

Alexakhin, V. Yu ;

Alexandrov, Yu ;

Alexeev, G. D. ;

Amoroso, A. ;

Austregesilo, A. ;

Badelek, B. ;

Balestra, F. ;

Ball, J. ;

Barth, J. ;

Baum, G. ;

Bedfer, Y. ;

Bernhard, J. ;

Bertini, R. ;

Bettinelli, M. ;

Birsa, R. ;

Bisplinghoff, J. ;

Bordalo, P. ;

Bradamante, F. ;

Bravar, A. ;

Bressan, A. ;

Brona, G. ;

Burtin, E. ;

Bussa, M. P. ;

Chaberny, D. ;

Cotic, D. ;

Chiosso, M. ;

Chung, S. U. ;

Cicuttin, A. ;

Colantoni, M. ;

Crespo, M. L. ;

Dalla Torre, S. ;

Das, S. ;

Dasgupta, S. S. ;

Denisov, O. Yu ;

Dhara, L. ;

Diaz, V. ;

Donskov, S. V. ;

Doshita, N. ;

Duic, V. ;

Duennweber, W. ;

Efremov, A. ;

El Alaoui, A. ;

Eversheim, P. D. ;

Eyrich, W. ;

Faessler, M. ;

Ferrero, A. ;

Filin, A. ;

Finger, M. ;

Finger, M., Jr. .

PHYSICS LETTERS B, 2010, 690 (05) :466-472

[2]

Bali G.S., ARXIV11123354HEPLAT

[3] THE EMC EFFECT - WITH EMPHASIS ON CONVENTIONAL NUCLEAR CORRECTIONS [J].

BICKERSTAFF, RP ;

THOMAS, AW .

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 1989, 15 (10) :1523-1569

[4] Flavor blindness and patterns of flavor symmetry breaking in lattice simulations of up, down, and strange quarks [J].

Bietenholz, W. ;

Bornyakov, V. ;

Goeckeler, M. ;

Horsley, R. ;

Lockhart, W. G. ;

Nakamura, Y. ;

Perlt, H. ;

Pleiter, D. ;

Rakow, P. E. L. ;

Schierholz, G. ;

Schiller, A. ;

Streuer, T. ;

Stueben, H. ;

Winter, F. ;

Zanotti, J. M. .

PHYSICAL REVIEW D, 2011, 84 (05)

[5] Tuning the strange quark mass in lattice simulations [J].

Bietenholz, W. ;

Bornyakov, V. ;

Cundy, N. ;

Goeckeler, M. ;

Horsley, R. ;

Kennedy, A. D. ;

Lockhart, W. G. ;

Nakamura, Y. ;

Perlt, H. ;

Pleiter, D. ;

Rakow, P. E. L. ;

Schaefer, A. ;

Schierholz, G. ;

Schiller, A. ;

Stueben, H. ;

Zanotti, J. M. .

PHYSICS LETTERS B, 2010, 690 (04) :436-441

[6] INELASTIC SCATTERING OF POLARIZED LEPTONS FROM POLARIZED NUCLEONS [J].

BJORKEN, JD .

PHYSICAL REVIEW D, 1970, 1 (05) :1376-&

[7] APPLICATIONS OF CHIRAL U (6) BYU (6) ALGEBRA OF CURRENT DENSITIES [J].

BJORKEN, JD .

PHYSICAL REVIEW, 1966, 148 (04) :1467-&

[8] QCD analysis of polarized deep inelastic scattering data [J].

Bluemlein, Johannes ;

Boettcher, Helmut .

NUCLEAR PHYSICS B, 2010, 841 (1-2) :205-230

[9] The BAGEL assembler generation library [J].

Boyle, Peter A. .

COMPUTER PHYSICS COMMUNICATIONS, 2009, 180 (12) :2739-2748

[10] Spin-dependent structure functions in nuclear matter and the polarized EMC effect -: art. no. 052302 [J].

Cloët, IC ;

Bentz, W ;

Thomas, AW .

PHYSICAL REVIEW LETTERS, 2005, 95 (05)

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