Momentum anisotropy effects for quarkonium in a weakly coupled quark-gluon plasma below the melting temperature

Biondini, Simone; Brambilla, N.; Escobedo, M. A.; Vairo, A. (2017). Momentum anisotropy effects for quarkonium in a weakly coupled quark-gluon plasma below the melting temperature. Physical review. D - particles, fields, gravitation, and cosmology, 95(7), 074016. American Physical Society 10.1103/PhysRevD.95.074016

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In the early stages of heavy-ion collisions, the hot QCD matter expands more longitudinally than transversely. This imbalance causes the system to become rapidly colder in the longitudinal direction, and a local momentum anisotropy appears. In this paper, we study the heavy-quarkonium spectrum in the presence of a small plasma anisotropy. We work in the framework of potential nonrelativistic QCD at finite temperature. We inspect arrangements of nonrelativistic and thermal scales complementary to those considered in the literature. In particular, we consider temperatures larger and Debye masses smaller than the binding energy, which is a temperature range relevant for presently running LHC experiments. In this setting, we compute the leading thermal corrections to the binding energy and the thermal width induced by quarkonium gluodissociation.

Item Type:

Journal Article (Original Article)

Division/Institute:

10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC)
08 Faculty of Science > Institute of Theoretical Physics

UniBE Contributor:

Biondini, Simone

Subjects:

500 Science > 530 Physics

ISSN:

1550-7998

Publisher:

American Physical Society

Language:

English

Submitter:

Esther Fiechter

Date Deposited:

03 Nov 2017 09:55

Last Modified:

03 Nov 2017 09:55

Publisher DOI:

10.1103/PhysRevD.95.074016

ArXiv ID:

1701.06956

BORIS DOI:

10.7892/boris.106409

URI:

https://boris.unibe.ch/id/eprint/106409

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