X(3872) Transport in Heavy-Ion Collisions

Wu B, Du X, Sibila M, Rapp R (2020)
The European Physical Journal A 57(4): 122.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
Download
Es wurden keine Dateien hochgeladen. Nur Publikationsnachweis!
Autor*in
Wu, Biaogang; Du, XiaojianUniBi; Sibila, Matthew; Rapp, Ralf
Abstract / Bemerkung
The production of the X(3872) particle in heavyion collisions has been contemplated as an alternative probe of its internal structure. To investigate this conjecture, we perform transport calculations of the X(3872) through the fireball formed in nuclear collisions at the LHC. Within a kinetic-rate equation approach as previously used for charmonia, the formation and dissociation of the X(3872) is controlled by two transport parameters, i.e., its inelastic reaction rate and thermal-equilibrium limit in the evolving hot QCD medium. While the equilibrium limit is controlled by the charm production cross section in primordial nucleonnucleon collisions (together with the spectra of charm states in the medium), the structure information is encoded in the reaction rate. We study how different scenarios for the rate affect the centrality dependence and transverse-momentum ( pT) spectra of the X(3872). Larger reaction rates associated with the loosely bound molecule structure imply that it is formed later in the fireball evolution than the tetraquark and thus its final yields are generally smaller by around a factor of two, which is qualitatively different from most coalescence model calculations to date. The pT spectra provide further information as the later decoupling time within the molecular scenario leads to harder spectra caused by the blue-shift from the expanding fireball.
Erscheinungsjahr
2020
Zeitschriftentitel
The European Physical Journal A
Band
57
Ausgabe
4
Art.-Nr.
122
ISSN
1434-6001
eISSN
1434-601X
Page URI
https://pub.uni-bielefeld.de/record/2949873

Zitieren

Wu B, Du X, Sibila M, Rapp R. X(3872) Transport in Heavy-Ion Collisions. The European Physical Journal A . 2020;57(4): 122.
Wu, B., Du, X., Sibila, M., & Rapp, R. (2020). X(3872) Transport in Heavy-Ion Collisions. The European Physical Journal A , 57(4), 122. https://doi.org/10.1140/epja/s10050-021-00435-6
Wu, B., Du, X., Sibila, M., and Rapp, R. (2020). X(3872) Transport in Heavy-Ion Collisions. The European Physical Journal A 57:122.
Wu, B., et al., 2020. X(3872) Transport in Heavy-Ion Collisions. The European Physical Journal A , 57(4): 122.
B. Wu, et al., “X(3872) Transport in Heavy-Ion Collisions”, The European Physical Journal A , vol. 57, 2020, : 122.
Wu, B., Du, X., Sibila, M., Rapp, R.: X(3872) Transport in Heavy-Ion Collisions. The European Physical Journal A . 57, : 122 (2020).
Wu, Biaogang, Du, Xiaojian, Sibila, Matthew, and Rapp, Ralf. “X(3872) Transport in Heavy-Ion Collisions”. The European Physical Journal A 57.4 (2020): 122.

Export

Markieren/ Markierung löschen
Markierte Publikationen

Open Data PUB

Web of Science

Dieser Datensatz im Web of Science®

Quellen

arXiv: 2006.09945

Inspire: 1801695

Suchen in

Google Scholar