Unpolarized dihadron fragmentation functions in nonlocal chiral quark model

Dong Jing Yang; Fu Jiun Jiang; Chian De Li; Chung Wen Kao; Seung il Nam

doi:10.1016/j.cjph.2021.02.011

Unpolarized dihadron fragmentation functions in nonlocal chiral quark model

Dong Jing Yang, Fu Jiun Jiang, Chian De Li, Chung Wen Kao^*, Seung il Nam

^*Corresponding author for this work

Department of Physics

Research output: Contribution to journal › Article › peer-review

Abstract

We have calculated the unpolarized dihadron fragmentation functions (uDiFFs) of pions and kaons using the nonlocal chiral-quark model (NLChQM) and evolved our results to the transferred momentum scale Q²=4GeV² by the QCD evolution equations. These uDiFFs have also been computed in the Nambu–Jona-Lasinio-jet (NJL-jet) model for the sake of comparison. We find that there is substantial difference between the results of these two models. Furthermore, the DiFFs of u→π⁺π⁻ and g→π⁺π⁻ at Q²=109GeV² in these two models are presented in comparison with the parametrizations fitted by the Monte Carlo event generator JETSET.

Original language	English
Pages (from-to)	248-259
Number of pages	12
Journal	Chinese Journal of Physics
Volume	71
DOIs	https://doi.org/10.1016/j.cjph.2021.02.011
Publication status	Published - 2021 Jun

Keywords

11.10.Hi
12.38.Lg
12.39.Fe
13.87.Fh
14.40.-n
DGLAP evolution
Flavor SU(3) symmetry breaking
Kaon and pion fragmentation
Nonlocal chiral-quark model
Quark-jet

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1016/j.cjph.2021.02.011

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title = "Unpolarized dihadron fragmentation functions in nonlocal chiral quark model",

abstract = "We have calculated the unpolarized dihadron fragmentation functions (uDiFFs) of pions and kaons using the nonlocal chiral-quark model (NLChQM) and evolved our results to the transferred momentum scale Q2=4GeV2 by the QCD evolution equations. These uDiFFs have also been computed in the Nambu–Jona-Lasinio-jet (NJL-jet) model for the sake of comparison. We find that there is substantial difference between the results of these two models. Furthermore, the DiFFs of u→π+π− and g→π+π− at Q2=109GeV2 in these two models are presented in comparison with the parametrizations fitted by the Monte Carlo event generator JETSET.",

keywords = "11.10.Hi, 12.38.Lg, 12.39.Fe, 13.87.Fh, 14.40.-n, DGLAP evolution, Flavor SU(3) symmetry breaking, Kaon and pion fragmentation, Nonlocal chiral-quark model, Quark-jet",

author = "Yang, {Dong Jing} and Jiang, {Fu Jiun} and Li, {Chian De} and Kao, {Chung Wen} and Nam, {Seung il}",

note = "Funding Information: S.i.N. is very grateful to the hospitality during his visiting National Taiwan University (NTU) with the financial support from NCTS (North) of Taiwan, where the present work was partially performed. C.W.K. are supported by the grant NSC 102-2112-M-033-005-MY3 from National Science Council (NSC) of Taiwan . F.J.J. and D.J.Y are partially supported by NSC of Taiwan (grant No. 102-2112-M-003-004-MY3 ). Support of NCTS (North) of Taiwan is also acknowledged gratefully. Publisher Copyright: {\textcopyright} 2021",

year = "2021",

month = jun,

doi = "10.1016/j.cjph.2021.02.011",

language = "English",

volume = "71",

pages = "248--259",

journal = "Chinese Journal of Physics",

issn = "0577-9073",

publisher = "Physical Society of the Republic of China",

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TY - JOUR

T1 - Unpolarized dihadron fragmentation functions in nonlocal chiral quark model

AU - Yang, Dong Jing

AU - Jiang, Fu Jiun

AU - Li, Chian De

AU - Kao, Chung Wen

AU - Nam, Seung il

N1 - Funding Information: S.i.N. is very grateful to the hospitality during his visiting National Taiwan University (NTU) with the financial support from NCTS (North) of Taiwan, where the present work was partially performed. C.W.K. are supported by the grant NSC 102-2112-M-033-005-MY3 from National Science Council (NSC) of Taiwan . F.J.J. and D.J.Y are partially supported by NSC of Taiwan (grant No. 102-2112-M-003-004-MY3 ). Support of NCTS (North) of Taiwan is also acknowledged gratefully. Publisher Copyright: © 2021

PY - 2021/6

Y1 - 2021/6

N2 - We have calculated the unpolarized dihadron fragmentation functions (uDiFFs) of pions and kaons using the nonlocal chiral-quark model (NLChQM) and evolved our results to the transferred momentum scale Q2=4GeV2 by the QCD evolution equations. These uDiFFs have also been computed in the Nambu–Jona-Lasinio-jet (NJL-jet) model for the sake of comparison. We find that there is substantial difference between the results of these two models. Furthermore, the DiFFs of u→π+π− and g→π+π− at Q2=109GeV2 in these two models are presented in comparison with the parametrizations fitted by the Monte Carlo event generator JETSET.

AB - We have calculated the unpolarized dihadron fragmentation functions (uDiFFs) of pions and kaons using the nonlocal chiral-quark model (NLChQM) and evolved our results to the transferred momentum scale Q2=4GeV2 by the QCD evolution equations. These uDiFFs have also been computed in the Nambu–Jona-Lasinio-jet (NJL-jet) model for the sake of comparison. We find that there is substantial difference between the results of these two models. Furthermore, the DiFFs of u→π+π− and g→π+π− at Q2=109GeV2 in these two models are presented in comparison with the parametrizations fitted by the Monte Carlo event generator JETSET.

KW - 11.10.Hi

KW - 12.38.Lg

KW - 12.39.Fe

KW - 13.87.Fh

KW - 14.40.-n

KW - DGLAP evolution

KW - Flavor SU(3) symmetry breaking

KW - Kaon and pion fragmentation

KW - Nonlocal chiral-quark model

KW - Quark-jet

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SN - 0577-9073

VL - 71

SP - 248

EP - 259

JO - Chinese Journal of Physics

JF - Chinese Journal of Physics

ER -

Unpolarized dihadron fragmentation functions in nonlocal chiral quark model

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Keywords

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