Abstract
We investigate mass shifts of charmonia driven by change of the gluon condensate below but near transition temperatures at finite baryonic chemical potential. Extending previous prescription on the relation between gluon condensates and thermodynamic quantities, we model the gluon condensates of hadronic matter at finite temperature and baryonic chemical potential such that the scalar gluon condensate fits with the latest lattice QCD data. By making use of the QCD sum rule and the second-order Stark effect, we find that the smoother transition in the full QCD can lead to moderate mass shifts of charmonia even below the transition temperature. We also find larger mass shift at fixed temperature as chemical potential increases. Existing data on charmonium-charmonium ratio is found to be consistent with the statistical hadronization scenario, including the obtained mass shift.
| Original language | English |
|---|---|
| Article number | 044917 |
| Journal | Physical Review C - Nuclear Physics |
| Volume | 85 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2012 Apr 17 |
Fingerprint
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics
Cite this
}
Charmonium mass in hot and dense hadronic matter. / Morita, Kenji; Lee, Su Houng.
In: Physical Review C - Nuclear Physics, Vol. 85, No. 4, 044917, 17.04.2012.Research output: Contribution to journal › Article
TY - JOUR
T1 - Charmonium mass in hot and dense hadronic matter
AU - Morita, Kenji
AU - Lee, Su Houng
PY - 2012/4/17
Y1 - 2012/4/17
N2 - We investigate mass shifts of charmonia driven by change of the gluon condensate below but near transition temperatures at finite baryonic chemical potential. Extending previous prescription on the relation between gluon condensates and thermodynamic quantities, we model the gluon condensates of hadronic matter at finite temperature and baryonic chemical potential such that the scalar gluon condensate fits with the latest lattice QCD data. By making use of the QCD sum rule and the second-order Stark effect, we find that the smoother transition in the full QCD can lead to moderate mass shifts of charmonia even below the transition temperature. We also find larger mass shift at fixed temperature as chemical potential increases. Existing data on charmonium-charmonium ratio is found to be consistent with the statistical hadronization scenario, including the obtained mass shift.
AB - We investigate mass shifts of charmonia driven by change of the gluon condensate below but near transition temperatures at finite baryonic chemical potential. Extending previous prescription on the relation between gluon condensates and thermodynamic quantities, we model the gluon condensates of hadronic matter at finite temperature and baryonic chemical potential such that the scalar gluon condensate fits with the latest lattice QCD data. By making use of the QCD sum rule and the second-order Stark effect, we find that the smoother transition in the full QCD can lead to moderate mass shifts of charmonia even below the transition temperature. We also find larger mass shift at fixed temperature as chemical potential increases. Existing data on charmonium-charmonium ratio is found to be consistent with the statistical hadronization scenario, including the obtained mass shift.
UR - http://www.scopus.com/inward/record.url?scp=84860141390&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84860141390&partnerID=8YFLogxK
U2 - 10.1103/PhysRevC.85.044917
DO - 10.1103/PhysRevC.85.044917
M3 - Article
VL - 85
JO - Physical Review C - Nuclear Physics
JF - Physical Review C - Nuclear Physics
SN - 0556-2813
IS - 4
M1 - 044917
ER -