Charmonium states in quark-gluon plasma

Su Houng Lee; Kenji Morita

doi:10.1007/s12043-009-0008-9

Charmonium states in quark-gluon plasma

Su Houng Lee, Kenji Morita

Department of Physics

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

We discuss how the spectral changes of quarkonia at T_c can reflect the 'critical' behaviour of QCD phase transition. Starting from the temperature dependencies of the energy density and pressure from lattice QCD calculation, we extract the temperature dependencies of the scalar and spin-2 gluon condensates near T_c. We also parametrize these changes into the electric and magnetic condensate near T_c. While the magnetic condensate hardly changes across T_c, we find that the electric condensate increases abruptly above T_c. Similar abrupt change is also seen in the scalar condensate. Using the QCD second-order Stark effect and QCD sum rules, we show that these sudden changes induce equally abrupt changes in the mass and width of J/ψ, both of which are larger than 100 MeV at slightly above T_c,

Original language	English
Pages (from-to)	97-108
Number of pages	12
Journal	Pramana - Journal of Physics
Volume	72
Issue number	1
DOIs	https://doi.org/10.1007/s12043-009-0008-9
Publication status	Published - 2009 Jan

Bibliographical note

Funding Information:
This work was supported by the BK21 Program of the Korean Ministry of Education, and by the Korean Research Foundation KRF-2006-C00011.

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

Access to Document

10.1007/s12043-009-0008-9

Cite this

@article{14b3d93666d144919e8a231632555ada,

title = "Charmonium states in quark-gluon plasma",

abstract = "We discuss how the spectral changes of quarkonia at Tc can reflect the 'critical' behaviour of QCD phase transition. Starting from the temperature dependencies of the energy density and pressure from lattice QCD calculation, we extract the temperature dependencies of the scalar and spin-2 gluon condensates near Tc. We also parametrize these changes into the electric and magnetic condensate near Tc. While the magnetic condensate hardly changes across Tc, we find that the electric condensate increases abruptly above Tc. Similar abrupt change is also seen in the scalar condensate. Using the QCD second-order Stark effect and QCD sum rules, we show that these sudden changes induce equally abrupt changes in the mass and width of J/ψ, both of which are larger than 100 MeV at slightly above Tc,",

author = "Lee, {Su Houng} and Kenji Morita",

note = "Funding Information: This work was supported by the BK21 Program of the Korean Ministry of Education, and by the Korean Research Foundation KRF-2006-C00011.",

year = "2009",

month = jan,

doi = "10.1007/s12043-009-0008-9",

language = "English",

volume = "72",

pages = "97--108",

journal = "Pramana - Journal of Physics",

issn = "0304-4289",

publisher = "Indian Academy of Sciences",

number = "1",

}

TY - JOUR

T1 - Charmonium states in quark-gluon plasma

AU - Lee, Su Houng

AU - Morita, Kenji

N1 - Funding Information: This work was supported by the BK21 Program of the Korean Ministry of Education, and by the Korean Research Foundation KRF-2006-C00011.

PY - 2009/1

Y1 - 2009/1

N2 - We discuss how the spectral changes of quarkonia at Tc can reflect the 'critical' behaviour of QCD phase transition. Starting from the temperature dependencies of the energy density and pressure from lattice QCD calculation, we extract the temperature dependencies of the scalar and spin-2 gluon condensates near Tc. We also parametrize these changes into the electric and magnetic condensate near Tc. While the magnetic condensate hardly changes across Tc, we find that the electric condensate increases abruptly above Tc. Similar abrupt change is also seen in the scalar condensate. Using the QCD second-order Stark effect and QCD sum rules, we show that these sudden changes induce equally abrupt changes in the mass and width of J/ψ, both of which are larger than 100 MeV at slightly above Tc,

AB - We discuss how the spectral changes of quarkonia at Tc can reflect the 'critical' behaviour of QCD phase transition. Starting from the temperature dependencies of the energy density and pressure from lattice QCD calculation, we extract the temperature dependencies of the scalar and spin-2 gluon condensates near Tc. We also parametrize these changes into the electric and magnetic condensate near Tc. While the magnetic condensate hardly changes across Tc, we find that the electric condensate increases abruptly above Tc. Similar abrupt change is also seen in the scalar condensate. Using the QCD second-order Stark effect and QCD sum rules, we show that these sudden changes induce equally abrupt changes in the mass and width of J/ψ, both of which are larger than 100 MeV at slightly above Tc,

UR - http://www.scopus.com/inward/record.url?scp=59349102333&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=59349102333&partnerID=8YFLogxK

U2 - 10.1007/s12043-009-0008-9

DO - 10.1007/s12043-009-0008-9

M3 - Article

AN - SCOPUS:59349102333

SN - 0304-4289

VL - 72

SP - 97

EP - 108

JO - Pramana - Journal of Physics

JF - Pramana - Journal of Physics

IS - 1

ER -

Charmonium states in quark-gluon plasma

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this