Journal
EUROPEAN PHYSICAL JOURNAL C
Volume 81, Issue 9, Pages -Publisher
SPRINGER
DOI: 10.1140/epjc/s10052-021-09573-z
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Funding
- National Natural Science Foundation of China (NSFC) [11475149]
- NSFC [11705167, 11905188, 12005195]
- Innovation Fund of of Key Laboratory of Quark and Leption Physics [QLPL2020P01]
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The production of the exotic state X(3872) was studied using the dynamically constrained phase space coalescence model. Different structures for X(3872) were considered, and significant differences were found in the transverse momentum and rapidity distributions among these structures.
We have used the dynamically constrained phase space coalescence model to study the production of the exotic state X(3872) based on the hadronic final states generated by the parton and hadron cascade model (PACIAE) with vertical bar y vertical bar < 1 and p(T) < 15.5 GeV/c in pp collisions at root s = 7 and 13 TeV, respectively. Here the X(3872) is assumed to consist of bound state D (D) over bar*, which can form three possible structures for the tetraquark state, the nucleus-like state, and the molecular state. The yields of three different structures X(3872) were predicted. The transverse momentum distribution and the rapidity distribution of three different structures X(3872) are also presented. Sizable difference can be found in the transverse momentum and rapidity distributions for the three different X(3872) structures.
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