Journal
INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS
Volume 54, Issue 10, Pages 3825-3830Publisher
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10773-015-2623-1
Keywords
Four quark state; Charm states; QCD sum rules
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Funding
- Pittsburgh Foundation
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Using the method of QCD sum rules, we derive the correlator pi (Z) for a state consisting of two charm quarks and two light quarks, , and carry out a Borel transform to find pi (Z) (M (B) ). From this we find the solution that M (B) a parts per thousand integral 3.9 +/-. 2 GeV, showing that the Z c(3900) is a tetra-quark state.
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