Research on the kaon parton distribution functions

GAO Ying-ying; LOU Li-yang; RUAN Jian-hong

doi:10.3969/j.issn.1000-5641.2017.02.011

Issue 2

Mar. 2017

Turn off MathJax

Article Contents

Article Navigation > Journal of East China Normal University (Natural Sciences) > 2017 > (2): 81-88

GAO Ying-ying, LOU Li-yang, RUAN Jian-hong. Research on the kaon parton distribution functions[J]. Journal of East China Normal University (Natural Sciences), 2017, (2): 81-88. doi: 10.3969/j.issn.1000-5641.2017.02.011

Citation:

GAO Ying-ying, LOU Li-yang, RUAN Jian-hong. Research on the kaon parton distribution functions[J]. Journal of East China Normal University (Natural Sciences), 2017, (2): 81-88. doi: 10.3969/j.issn.1000-5641.2017.02.011

Citation:

PDF( 554 KB)

Research on the kaon parton distribution functions

doi: 10.3969/j.issn.1000-5641.2017.02.011

School of Physics and Materials Science, East China Normal University, Shanghai 200241, China

Received Date: 2016-01-13
Publish Date: 2017-03-25

Abstract

Abstract

The parton distribution functions of nucleons and mesons are basic physical quantities, while different research groups have got different results. With a very simple model that kaon is made up of only valence quarks at a low Q² scale, the gluons and sea quarks are generated completely through the quantum chromodynamics (QCD) radiations. The modified dokshitzer-gribov-lipatov-altarelli-parisi (MD-DGLAP) equations is used as the QCD dynamical evolution equations. It is shown that the results can fit the experiments well. Compared the parton distributions and momentum distributions with the other models, the differences are obvious. We hope that future experiments can check them.
- dokshitzer-gribov-lipatov-altarelli-parisi equation,
- parton distribution function,
- pion,
- kaon

FullText(HTML)

References(25)

References

[1]	GLUCK M, REYA E, STRATMANN M. Mesonicparton densities derived from constituent quark model constraints[J]. European Physical Journal C, 1998, 2:159-163. doi: 10.1007/s100520050130
[2]	GLUCK M, REYA E, SCHIENBEIN I. Pionicparton distributions revisited[J]. European Physical Journal C, 1999, 10:313-317. doi: 10.1007/s100529900124
[3]	MARTIN A D, ROBERTS R G, STIRLING W J, et al. MRST2001:Partons and α_s from precise deep inelastic scattering and Tevatron jet data[J]. European Physical Journal C, 2002, 23:73-87. doi: 10.1007/s100520100842
[4]	MARTIN A D, ROBERTS R G, STIRLING W J, et al. Uncertainties of predictions from parton distributions.:Experimental errors[J]. European Physical Journal C, 2003, 28:455-473. doi: 10.1140/epjc/s2003-01196-2
[5]	MARTIN A D, STIRLING W J, THORNE R S. MRST partons generated in a fixed-flavor scheme[J]. Physics Letters B, 2006, 636:259-264. doi: 10.1016/j.physletb.2006.03.054
[6]	STERMAN G, SMITH J, COLLINS J C, et al (CTEQ Collaboration Group). Handbook of perturbative QCD[J]. Reviews of Modern Physics, 1995, 67:157-248. doi: 10.1103/RevModPhys.67.157
[7]	NADOLSKY P M, LAI H L, CAO Q H, et al. Implications of CTEQ global analysis for collider observables[J]. Physical Review D, 2008, 78:013004. DOI: 10.1103/PhysRevD.78.013004.
[8]	徐仕磊, 阮建红.核子中部分子分布函数的研究[J].华东师范大学学报 (自然科学版), 2015(1):195-202. http://xblk.ecnu.edu.cn/CN/abstract/abstract25074.shtml
[9]	NOVIKOV V A, SHIFMAN M A, VAINSHTEIN A I, et al. Deep-inelastic scattering of leptons by hadrons and bremsstrahlung of gluons[J]. Journal of Experimental and Theoretical Physics Letters, 1976, 24(6):341-344.
[10]	PARISI G, PETRONZIO R. On the Breaking of BjorkenScaling[J]. Physics Letters B, 1976, 62(3):331-334. doi: 10.1016/0370-2693(76)90088-5
[11]	GLUCK M, REYA E, VOGT A. Dynamical parton distributions revisited[J]. European Physical Journal C, 1998, 5:461-470. doi: 10.1007/s100529800978
[12]	CHEN X R, RUAN J H, WANG R, et al. Applications of a nonliner evolution equation.:The parton distributions in the proton[J]. International Journal of Modern Physics E, 2014, 23:1450057. https://arxiv.org/pdf/1306.1872v2.pdf
[13]	CHEN X R, RUAN J H, WANG R, et al, Applications of a nonliner evolution equation Ⅱ:The EMC effect[J]. International Journal of Modern Physics E, 2014, 23:1450058. http://adsabs.harvard.edu/abs/2014IJMPE..2350058C
[14]	CHEN X R, RUAN J H, WANG R, et al. Nucleon spin structure[J]. International Journal of Modern Physics E, 2015, 24:1550077.
[15]	LOU L Y, RUAN J H. A new research about pion parton distribution function[J]. Chinese Physics Letters, 2015, 32(5):051201. doi: 10.1088/0256-307X/32/5/051201
[16]	GRIBOV L V, LEVIN E M, RYSKIN M G. Semihard processes in QCD[J]. Physics Reports, 1983, 100:1-150. doi: 10.1016/0370-1573(83)90022-4
[17]	MUELLER A H, QIU J W. Gluon recombination and shadowing at small values of x[J]. Nuclear Physics B, 1986, 268(2):427-452. doi: 10.1016/0550-3213(86)90164-1
[18]	ZHU W, RUAN J H. A new modified altarelli-parisi evolution equation with parton recombinationin proton[J]. Nuclear Physics B, 1999, 559:378-392. doi: 10.1016/S0550-3213(99)00461-7
[19]	ZHU W. A New approach to parton recombination in a QCD evolution equation[J]. Nuclear Physics B, 1999, 551:245-274. doi: 10.1016/S0550-3213(99)00237-0
[20]	ZHU W, SHEN Z Q, RUAN J H. Parton recombination effect in polarized partondistributions[J]. Nuclear Physics B, 2004, 692:417-433. doi: 10.1016/j.nuclphysb.2004.06.001
[21]	ZHU W, SHEN Z Q. Properties of the gluon recombination functions[J]. Physics and Nuclear Physics, 2005(2):109-114.
[22]	BADIER J, BOUCROT J, BOUROTTE J, et al. Measurement of the K^-/π^- structure function ratio using the Drell-Yan process[J]. Physics Letter B, 1980, 93:354-362. doi: 10.1016/0370-2693(80)90530-4
[23]	SHIGETANI T, SUZUKI K, TOKI H. Pion structure function in the Nam and Jona-Lasinio model[J]. Physics Letters B, 1993, 308:383-388. doi: 10.1016/0370-2693(93)91302-4
[24]	HOLT R J, ROBERTS C D. Distribution functions of the nucleon and pion in the valence region[J]. Review of Modern Physics, 2010, 82:2991-3044. doi: 10.1103/RevModPhys.82.2991
[25]	NAM S. Parton-distribution functions for the pion and kaon in the gauge-invariant nonlocal chiral-quark model[J]. Physical Review D, 2012, 86:074005. DOI: 10.1103/PhysRevD.86.074005.