First simultaneous global QCD analysis of dihadron fragmentation functions and transversity parton distribution functions
First simultaneous global QCD analysis of dihadron fragmentation functions and transversity parton distribution functions
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首次同时对双强子碎裂函数和横向部分子分布函数进行全局 QCD 分析
DOI:
10.1103/physrevd.109.034024
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发表时间:
2024
影响因子:
5
通讯作者:
Seidl, R.
中科院分区:
文献类型:
--
作者:
Cocuzza, C.;Metz, A.;Pitonyak, D.;Prokudin, A.;Sato, N.;Seidl, R.
We perform a comprehensive study within quantum chromodynamics (QCD) of dihadron observables in electron-positron annihilation, semi-inclusive deep-inelastic scattering, and proton-proton collisions, including recent cross section data from Belle and azimuthal asymmetries from STAR. We extract simultaneously for the first timedihadron fragmentation functions (DiFFs) and the nucleon transversity distributions for up and down quarks as well as antiquarks. For the transversity distributions we impose their small-asymptotic behavior and the Soffer bound. In addition, we utilize a new definition of DiFFs that has a number density interpretation to then calculate expectation values for the dihadron invariant mass and momentum fraction. Furthermore, we investigate the compatibility of our transversity results with those from single-hadron fragmentation (from a transverse momentum dependent/collinear twist-3 framework) and the nucleon tensor charges computed in lattice QCD. We find a universal nature to all of this available information. Future measurements of dihadron production can significantly further this research, especially, as we show, those that are sensitive to the region of large parton momentum fractions.
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DOI:
--
发表时间:
2000
期刊:
影响因子:
--
作者:
L. Bourhis.;M. Fontannaz;J. Guillet;M. Werlen
通讯作者:
M. Werlen
DOI:
--
发表时间:
1993
期刊:
影响因子:
--
作者:
P. Chiappetta;M. Greco;J. Guillet;S. Rolli;M. Werlen
通讯作者:
M. Werlen
影响因子:
4.4
作者:
Abdul Khalek R
通讯作者:
Abdul Khalek R
DOI:
--
发表时间:
2001
期刊:
影响因子:
--
作者:
Johannes Blumlein
通讯作者:
Johannes Blumlein
DOI:
--
发表时间:
1995
期刊:
影响因子:
--
作者:
X. Artru;J. Collins
通讯作者:
J. Collins