ITP OpenIR  > SCI期刊论文
Cao, X1,2
Parton distributions and cos 2 phi(h) asymmetry induced by anomalous photon-quark coupling
Source PublicationPHYSICAL REVIEW D
Language英语
KeywordDEEP-INELASTIC SCATTERING AZIMUTHAL ASYMMETRIES CHROMOMAGNETIC MOMENT SPIN ASYMMETRIES SIVERS FUNCTION LEPTOPRODUCTION INSTANTONS DEPENDENCE MODEL QCD
AbstractIn the spectator models of the nucleon with scalar and axial-vector diquarks, we show the effect of Pauli coupling in the photon-quark vertex to the parton distribution functions (PDFs) of nucleon and azimuthal asymmetry in the unpolarized semi-inclusive deep inelastic scattering (SIDIS). This anomalous coupling gives an obvious contribution to unpolarized and polarized PDFs and also leads to a cos 2 phi(h) azimuthal asymmetry proportional to the squared Pauli form factor, due to the helicity flip of the struck quark. After determining the model parameters by fitting PDFs to the global fits, this new distribution for cos 2 phi(h) asymmetry is given numerically. In the framework of transverse momentum dependence (TMD), we find that it is positive and of a few percent in the kinematical regime of HERMES and COMPASS Collaborations, in the same order of magnitude as the Cahn effect.
2018
ISSN2470-0010
Volume97Issue:11Pages:114010
Subject AreaAstronomy & Astrophysics ; Physics
MOST Discipline CatalogueAstronomy & Astrophysics ; Physics, Particles & Fields
DOI10.1103/PhysRevD.97.114010
Indexed BySCIE
Citation statistics
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/22884
CollectionSCI期刊论文
Affiliation1.Chinese Acad Sci, Inst Modern Phys, CAS Key Lab High Precis Nucl Spect, Lanzhou 730000, Gansu, Peoples R China
2.Chinese Acad Sci, Inst Modern Phys, Ctr Nucl Matter Sci, Lanzhou 730000, Gansu, Peoples R China
3.Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Cao, X. Parton distributions and cos 2 phi(h) asymmetry induced by anomalous photon-quark coupling[J]. PHYSICAL REVIEW D,2018,97(11):114010.
APA Cao, X.(2018).Parton distributions and cos 2 phi(h) asymmetry induced by anomalous photon-quark coupling.PHYSICAL REVIEW D,97(11),114010.
MLA Cao, X."Parton distributions and cos 2 phi(h) asymmetry induced by anomalous photon-quark coupling".PHYSICAL REVIEW D 97.11(2018):114010.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Cao, X]'s Articles
Baidu academic
Similar articles in Baidu academic
[Cao, X]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Cao, X]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.