Atomic mass dependence of hadron production in semi-inclusive deep inelastic lepton-nucleus scattering

Hadron production in lepton-nucleus deep inelastic scattering is studied in a quark energy loss model. The leading-order computations for hadron multiplicity ratios are presented and compared with the selected HERMES pions production data with the quark hadronization occurring outside the nucleus by...

Full description

Saved in:
Bibliographic Details
Published inChinese physics C Vol. 37; no. 8; pp. 29 - 33
Main Author 宋丽华 刘娜 段春贵
Format Journal Article
LanguageEnglish
Published 01.08.2013
Subjects
Atomic properties
Attenuation
Hadrons
Inelastic scattering
Nuclei
Pions
Power law
Quarks
原子核
原子质量
强子
损失模型
深度非弹性散射
深部
生产数据
能量损失
Online AccessGet full text
ISSN1674-1137
0254-3052
DOI10.1088/1674-1137/37/8/084102

Cover

More Information
Summary:Hadron production in lepton-nucleus deep inelastic scattering is studied in a quark energy loss model. The leading-order computations for hadron multiplicity ratios are presented and compared with the selected HERMES pions production data with the quark hadronization occurring outside the nucleus by means of the hadron formation time. It is found that the obtained energy loss per unit length is 0.440±0.013 GeV/fm for an outgoing quark by the global fit. It is confirmed that the atomic mass number dependence of hadron attenuation is theoretically and experimentally in good agreement with the A2/3 power law for quark hadronization occurring outside the nucleus,
Bibliography:atomic mass dependence, quark energy loss, hadron production, deep inelastic scattering
SONG Li-Hua LIU Na DUAN Chun-Gui 1 Department of Physics, Hebei Normal University, Shijiazhuang 050024, China 2 Hebei Advanced Thin Films Laboratory, Shijiazhuang 050024, China 3 College of Science, Hebei United University, Tangshan 063009, China 4 College of Mathematics and Physics, Shijiazhuang University of Economics, Shijiazhuang 050031, China
11-5641/O4
Hadron production in lepton-nucleus deep inelastic scattering is studied in a quark energy loss model. The leading-order computations for hadron multiplicity ratios are presented and compared with the selected HERMES pions production data with the quark hadronization occurring outside the nucleus by means of the hadron formation time. It is found that the obtained energy loss per unit length is 0.440±0.013 GeV/fm for an outgoing quark by the global fit. It is confirmed that the atomic mass number dependence of hadron attenuation is theoretically and experimentally in good agreement with the A2/3 power law for quark hadronization occurring outside the nucleus
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1674-1137
0254-3052
DOI:10.1088/1674-1137/37/8/084102