QCD resummation on single hadron transverse momentum distribution with the thrust axis

A bstract We derive the transverse momentum dependent (TMD) factorization and resummation formula of the unpolarized transverse momentum distribution ( j T ) for the single hadron production with the thrust axis in an electron-positron collision. Two different kinematic regions are considered, inclu...

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Bibliographic Details
Published in:The journal of high energy physics 2020-12, Vol.2020 (12), p.1-26, Article 127
Main Authors: Kang, Zhong-Bo, Shao, Ding Yu, Zhao, Fanyi
Format: Article
Language:English
Subjects:
Classical and Quantum Gravitation
Effective Field Theories
Elementary Particles
High energy physics
Logarithms
Perturbative QCD
Physics
Physics and Astronomy
Pions
Quantum chromodynamics
Quantum Field Theories
Quantum Field Theory
Quantum Physics
Regular Article - Theoretical Physics
Relativity Theory
Resummation
String Theory
Transverse momentum
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Summary:A bstract We derive the transverse momentum dependent (TMD) factorization and resummation formula of the unpolarized transverse momentum distribution ( j T ) for the single hadron production with the thrust axis in an electron-positron collision. Two different kinematic regions are considered, including small transverse momentum limit j T « Q , and joint transverse momentum and threshold limit j T « Q (1 − z h ) « Q , where Q and z h are the hard scattering energy and the observed hadron momentum fraction. Using effective theory methods, we resum logarithms ln( Q/j T ) and ln(1 − z h ) to all orders. In the end, we present the differential cross sections and Gaussian widths calculated for the inclusive charged pion production and find that our results are consistent with the measurements reported by the Belle collaboration.
ISSN:1029-8479
1029-8479
DOI:10.1007/JHEP12(2020)127