Exotic -like molecules in QCD sum rules

We use the QCD sum rules to study possible B c -like molecular states. We consider isoscalar J P = 0 + and J P = 1 + D (a) B (a) molecular currents. We consider the contributions of condensates up to dimension eight and we work at leading order in alpha s . We obtain for these states masses around 7...

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Bibliographic Details
Published in:Physics letters. B 2012-12, Vol.718 (2), p.492-498
Main Authors: Albuquerque, Raphael M, Liu, Xiang, Nielsen, Marina
Format: Article
Language:English
Subjects:
Condensates
Elementary particles
Quantum chromodynamics
Sum rules
Online Access:Get full text
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Summary:We use the QCD sum rules to study possible B c -like molecular states. We consider isoscalar J P = 0 + and J P = 1 + D (a) B (a) molecular currents. We consider the contributions of condensates up to dimension eight and we work at leading order in alpha s . We obtain for these states masses around 7 GeV.
ISSN:0370-2693
DOI:10.1016/j.physletb.2012.10.063