SCOAP3 Repository 3 records found  Search took 0.02 seconds. 
1. Tetraquark-adequate formulation of QCD sum rules / Lucha, Wolfgang ; Melikhov, Dmitri ; Sazdjian, Hagop
We study details of QCD sum rules à la Shifman-Vainshtein-Zakharov for exotic tetraquark states. [...]
Published in Physical Review D 100 (2019) 10.1103/PhysRevD.100.014010
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2. Are there narrow flavor-exotic tetraquarks in large-Nc QCD? / Lucha, Wolfgang ; Melikhov, Dmitri ; Sazdjian, Hagop
A salient feature shared by all tetraquark candidates observed in experiment is the absence of flavor-exotic states of the type a¯bc¯d, with four different quark flavors. [...]
Published in Physical Review D 98 (2018) 10.1103/PhysRevD.98.094011 arXiv:1810.09986
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3. Tetraquark and two-meson states at large Nc / Lucha, Wolfgang ; Melikhov, Dmitri ; Sazdjian, Hagop
Considering four-point correlation functions of color-singlet quark bilinears, we investigate, in the large- Nc limit of QCD, the subleading diagrams that involve, in the s -channel of meson–meson scattering amplitudes, two-quark–two-antiquark intermediate states. [...]
Published in EPJC 77 (2017) 866 10.1140/epjc/s10052-017-5437-x
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1 Sazdjian, H.
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