Journal
PHYSICS LETTERS B
Volume 690, Issue 4, Pages 403-406Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physletb.2010.05.068
Keywords
X(4350); QCD sum rules
Funding
- National Natural Science Foundation of China [10775051]
- Program for New Century Excellent Talents in University [NCET-07-0282]
- Fundamental Research Funds for the Central Universities
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In this Letter, we assume that the narrow structure X(4350) is a scalar (c) over barc-D-s*(D) over bar (s)* mixing state, and study its mass using the QCD sum rules. The numerical result M-x = (4.37 +/- 0.15) GeV is in good agreement with the experimental data, the X(4350) may be a scalar (c) over barc-D-s*(D) over bar (s)* mixing state. Other possibility, such as a scalar (tensor) cs (c) over bar(s) over bar tetraquark state is not excluded. (C) 2010 Elsevier B.V. All rights reserved.
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