Leadingtwist parton distribution amplitudes of Swave heavyquarkonia
Here, the leadingtwist parton distribution amplitudes (PDAs) of groundstate _{1}S _{0} and _{3}S _{1} cc¯ and bb¯quarkonia are calculated using a symmetrypreserving continuum treatment of the meson boundstate problem which unifies the properties of these heavyquark systems with those of lightquark boundstates, including QCD's Goldstone modes. Analysing the evolution of _{1}S _{0} and _{3}S _{1} PDAs with currentquark mass, m^ _{q}, increasing away from the chiral limit, it is found that in all cases there is a value of m^ _{q} for which the PDA matches the asymptotic form appropriate to QCD's conformal limit and hence is insensitive to changes in renormalisation scale, ζ. This mass lies just above that associated with the squark. At currentquark masses associated with heavyquarkonia, on the other hand, the PDAs are piecewise convex–concave–convex.
 Authors:

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 Peking Univ., Beijing (China); Collaborative Innovation Center of Quantum Matter, Beijing (China)
 Nankai Univ., Tianjin (China)
 Argonne National Lab. (ANL), Argonne, IL (United States)
 Publication Date:
 Grant/Contract Number:
 AC0206CH11357
 Type:
 Published Article
 Journal Name:
 Physics Letters. Section B
 Additional Journal Information:
 Journal Volume: 753; Journal Issue: C; Journal ID: ISSN 03702693
 Publisher:
 Elsevier
 Research Org:
 Argonne National Lab. (ANL), Argonne, IL (United States)
 Sponsoring Org:
 USDOE Office of Science (SC), Nuclear Physics (NP) (SC26); National Natural Science Foundation of China (NNSFC)
 Country of Publication:
 United States
 Language:
 English
 Subject:
 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; DysonSchwinger equations; confinement; hard exclusive processes; heavy quarkonia; nonrelativistic quantum chromodynamics; parton distribution amplitudes
 OSTI Identifier:
 1229694
 Alternate Identifier(s):
 OSTI ID: 1391873
Ding, Minghui, Gao, Fei, Chang, Lei, Liu, Yu Xin, and Roberts, Craig D. Leadingtwist parton distribution amplitudes of Swave heavyquarkonia. United States: N. p.,
Web. doi:10.1016/j.physletb.2015.11.075.
Ding, Minghui, Gao, Fei, Chang, Lei, Liu, Yu Xin, & Roberts, Craig D. Leadingtwist parton distribution amplitudes of Swave heavyquarkonia. United States. doi:10.1016/j.physletb.2015.11.075.
Ding, Minghui, Gao, Fei, Chang, Lei, Liu, Yu Xin, and Roberts, Craig D. 2015.
"Leadingtwist parton distribution amplitudes of Swave heavyquarkonia". United States.
doi:10.1016/j.physletb.2015.11.075.
@article{osti_1229694,
title = {Leadingtwist parton distribution amplitudes of Swave heavyquarkonia},
author = {Ding, Minghui and Gao, Fei and Chang, Lei and Liu, Yu Xin and Roberts, Craig D.},
abstractNote = {Here, the leadingtwist parton distribution amplitudes (PDAs) of groundstate 1S0 and 3S1 cc¯ and bb¯quarkonia are calculated using a symmetrypreserving continuum treatment of the meson boundstate problem which unifies the properties of these heavyquark systems with those of lightquark boundstates, including QCD's Goldstone modes. Analysing the evolution of 1S0 and 3S1 PDAs with currentquark mass, m^q, increasing away from the chiral limit, it is found that in all cases there is a value of m^q for which the PDA matches the asymptotic form appropriate to QCD's conformal limit and hence is insensitive to changes in renormalisation scale, ζ. This mass lies just above that associated with the squark. At currentquark masses associated with heavyquarkonia, on the other hand, the PDAs are piecewise convex–concave–convex.},
doi = {10.1016/j.physletb.2015.11.075},
journal = {Physics Letters. Section B},
number = C,
volume = 753,
place = {United States},
year = {2015},
month = {12}
}