Author
Dağ, Hüseyin, Türkan, Arzu
Publication Date
2018
Subject
QCD sum rules, Exotic hadrons, X(4140), X(4274)
Type
Document
Language
English
Digital
Yes
Manuscript
No
Library
Özyeğin University
Library Asset ID
2405-6014
Record ID
6f188192-e737-4dd1-9630-8b517d98bf69
Library Location
Natural and Mathematical Sciences
Date
2018
Notes
TÜBİTAK
Sample Text
In this work, we studied the radial excitations of X(4140) and like states within QCD sum rules. We chose three molecular and three diquark-antidiquark currents with the quark content cc‾ss‾ and JPC = 0++, 1++, 2++, and estimated the masses and the meson coupling constants of the first excited states coupling to these currents in the framework of QCD sum rules. The ground states coupling to these currents were analyzed in a previous work and we have shown that all of these ground states have degenerate masses within 10 MeV neighborhood of exotic meson X(4140). For the excited states, the masses are not found to be degenerate. We found that scalar and tensor currents are coupling to Ds ⁎D‾s ⁎ threshold. However for the axial vector currents, the first excited states found to have mass compatible with X(4274), which was measured in the same decay with X(4140). Thus we conclude that X(4274) could be a radial excitation of X(4140).
DOI
10.1016/j.nuclphysbps.2018.02.003
Cilt
294–296
