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Title: The ρ-meson time-like form factors in sub-leading pQCD

Here, the annihilation/production process e + + e → ρ ++ ρ is studied with respect to the universal perturbative QCD (pQCD) predictions. Sub-leading contributions are considered together with the universal leading pQCD amplitudes such that the matrix elements of the ρ-meson electromagnetic current satisfy the constraint from the light-front angular condition. The data from the BaBar collaboration for the time-like ρ-meson form factors at √s = 10.58GeV puts a stringent test to the onset of asymptotic pQCD behavior. The e + + e → ρ ++ ρ cross-section for s between 60GeV 2 and 160GeV 2 is predicted where the sub-leading contributions are still considerable.
Authors:
 [1] ;  [2] ;  [3]
  1. Univ. Cruzeiro do Sul, Sao Paulo (Brazil). Lab. of Theoretical and Computational Physics (LFTC)
  2. North Carolina State Univ., Raleigh, NC (United States). Dept. of Physics
  3. Comando-Geral de Tecnologia Aerospacial (CTA), Sao Jose dos Campos (Brazil). Inst. Tecnologico de Aeronautica (ITA)
Publication Date:
Grant/Contract Number:
FG02-03ER41260
Type:
Published Article
Journal Name:
Physics Letters. Section B
Additional Journal Information:
Journal Volume: 763; Journal Issue: C; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Research Org:
North Carolina State Univ., Raleigh, NC (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Perturbative QCD; ρ-meson; Electromagnetic form factors
OSTI Identifier:
1402515
Alternate Identifier(s):
OSTI ID: 1466813

de Melo, J. P. B. C., Ji, Chueng -Ryong, and Frederico, Tobias. The ρ-meson time-like form factors in sub-leading pQCD. United States: N. p., Web. doi:10.1016/j.physletb.2016.10.018.
de Melo, J. P. B. C., Ji, Chueng -Ryong, & Frederico, Tobias. The ρ-meson time-like form factors in sub-leading pQCD. United States. doi:10.1016/j.physletb.2016.10.018.
de Melo, J. P. B. C., Ji, Chueng -Ryong, and Frederico, Tobias. 2016. "The ρ-meson time-like form factors in sub-leading pQCD". United States. doi:10.1016/j.physletb.2016.10.018.
@article{osti_1402515,
title = {The ρ-meson time-like form factors in sub-leading pQCD},
author = {de Melo, J. P. B. C. and Ji, Chueng -Ryong and Frederico, Tobias},
abstractNote = {Here, the annihilation/production process e+ + e– → ρ++ ρ– is studied with respect to the universal perturbative QCD (pQCD) predictions. Sub-leading contributions are considered together with the universal leading pQCD amplitudes such that the matrix elements of the ρ-meson electromagnetic current satisfy the constraint from the light-front angular condition. The data from the BaBar collaboration for the time-like ρ-meson form factors at √s = 10.58GeV puts a stringent test to the onset of asymptotic pQCD behavior. The e+ + e– → ρ++ ρ– cross-section for s between 60GeV2 and 160GeV2 is predicted where the sub-leading contributions are still considerable.},
doi = {10.1016/j.physletb.2016.10.018},
journal = {Physics Letters. Section B},
number = C,
volume = 763,
place = {United States},
year = {2016},
month = {10}
}