Relativistic corrections to heavy quark fragmentation to S-wave heavy mesons

Journal Article · Wed Jul 01 00:00:00 EDT 2009 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.80.014013· OSTI ID:21308519

Wenlong, Sang; Lanfei, Yang; Yuqi, Chen ^[1]

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1. Key Laboratory of Frontiers in Theoretical Physics, Institute of Theoretical Physics, Academia Sinica, Beijing 100190 (China)

The relativistic corrections of order v{sup 2} to the fragmentation functions for the heavy quark to S-wave heavy quarkonia are calculated in the framework of the nonrelativistic quantum chromodynamics factorization formula. We derive the fragmentation functions by using the Collins-Soper definition in both the Feynman gauge and the axial gauge. We also extract them through the process Z{sup 0}{yields}Hqq in the limit M{sub Z}/m{yields}{infinity}. We find that all results obtained by these two different methods and in different gauges are the same. We estimate the relative size of the relativistic corrections to the fragmentation functions.

• OSTI ID: 21308519
• Journal Information: Physical Review. D, Particles Fields, Vol. 80, Issue 1; Other Information: DOI: 10.1103/PhysRevD.80.014013; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
B QUARKS
C QUARKS
COMPUTERIZED SIMULATION
CORRECTIONS
FACTORIZATION
FRAGMENTATION
GAUGE INVARIANCE
MESONS
QUANTUM CHROMODYNAMICS
QUARKONIUM
RELATIVISTIC RANGE
S WAVES
T QUARKS