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Interplay of threshold resummation and hadron mass corrections in deep inelastic processes

Journal Article · · Physical Review. D, Particles, Fields, Gravitation and Cosmology
 [1];  [2];
  1. Hampton Univ., VA (United States); Jefferson Lab., Newport News, VA (United States)
  2. Tuebinger Univ. (Germany)

We discuss hadron mass corrections and threshold resummation for deep-inelastic scattering lN-->l'X and semi-inclusive annihilation e+e- → hX processes, and provide a prescription how to consistently combine these two corrections respecting all kinematic thresholds. We find an interesting interplay between threshold resummation and target mass corrections for deep-inelastic scattering at large values of Bjorken xB. In semi-inclusive annihilation, on the contrary, the two considered corrections are relevant in different kinematic regions and do not affect each other. A detailed analysis is nonetheless of interest in the light of recent high precision data from BaBar and Belle on pion and kaon production, with which we compare our calculations. For both deep inelastic scattering and single inclusive annihilation, the size of the combined corrections compared to the precision of world data is shown to be large. Therefore, we conclude that these theoretical corrections are relevant for global QCD fits in order to extract precise parton distributions at large Bjorken xB, and fragmentation functions over the whole kinematic range.

Research Organization:
Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Grant/Contract Number:
AC05-06OR23177
OSTI ID:
1170164
Alternate ID(s):
OSTI ID: 1180835
Report Number(s):
JLAB-THY--15-2003; DOE/OR/23177--3301; ArticleNumber: 034008
Journal Information:
Physical Review. D, Particles, Fields, Gravitation and Cosmology, Journal Name: Physical Review. D, Particles, Fields, Gravitation and Cosmology Journal Issue: 3 Vol. 91; ISSN PRVDAQ; ISSN 1550-7998
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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Cited By (8)

Fragmentation functions at next-to-next-to-leading order accuracy journal December 2015
First Monte Carlo analysis of fragmentation functions from single-inclusive e + e − annihilation journal December 2016
Fragmentation functions beyond fixed order accuracy journal March 2017
Parton-to-kaon fragmentation revisited journal May 2017
Phenomenology of single-inclusive jet production with jet radius and threshold resummation journal March 2018
A determination of the fragmentation functions of pions, kaons, and protons with faithful uncertainties: The NNPDF Collaboration journal August 2017
Fragmentation Functions at Next-to-Next-to-Leading Order Accuracy text January 2015
Fragmentation Functions Beyond Fixed Order Accuracy text January 2016

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