Tetraquark state candidates: Y(4140), Y(4274) and X(4350)
نویسندگان
چکیده
منابع مشابه
Investigation of light and heavy tetraquark candidates using lattice QCD
We review the status of an ongoing long-term lattice investigation of the spectrum and structure of tetraquark candidates. We focus on the light scalar meson a0(980). First steps regarding the study of a possibly existing ccc̄c̄ tetraquark are also outlined.
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Very recently, the D0 collaboration has reported the observation of a narrow structure, X(5568), in the decay process X(5568) → B sπ using the 10.4fb−1 data of pp̄ collision at √ s = 1.96 TeV. This structure is of great interest since it is the first hadronic state with four different valence quark flavors, b, s, u, d. In this work, we present a tetraquark interpretation of the X(5568). Based on...
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In this article, we take the point of view that the Ds(2700) be a tetraquark state, which consists of a scalar diquark and a vector antidiquark, and calculate its mass in the framework of the QCD sum rules approach. The numerical result indicates that the mass of the vector charmed tetraquark state is about MV = 3.75GeV, which is about 1GeV larger than the experimental data. If there are some t...
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1Goethe-Universität Frankfurt am Main, Institut für theoretische Physik, Max-von-Laue-Straße 1, D-60438 Frankfurt am Main, Germany 2Computation-based Science and Technology Research Center, The Cyprus Institute, 20 Kavafi Street, 2121 Nicosia, Cyprus 3Department of Physics, University of Cyprus, P.O. Box 20537, 1678 Nicosia, Cyprus 4NIC, DESY, Platanenallee 6, 15738 Zeuthen, Germany 5Università...
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ژورنال
عنوان ژورنال: International Journal of Modern Physics A
سال: 2015
ISSN: 0217-751X,1793-656X
DOI: 10.1142/s0217751x15500049