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Article overview
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In-medium modification of P-wave charmonia from QCD sum rules | Young-Ho Song
; Su Houng Lee
; Kenji Morita
; | Date: |
8 Aug 2008 | Abstract: | We investigate the changes of the masses and widths of $chi_{c0}$ and
$chi_{c1}$ in hot gluonic matter near $T_c$ and in nuclear medium using QCD
sum rules. As in the previous works for the $J/psi$ and $eta_c$, in-medium
effects are incorporated through the changes of gluon condensates. Twist-2
terms for the $^3 P_0 (chi_{c0})$ and $^3 P_1 (chi_{c1})$ are also included
for the first time. The results show that larger mass shifts and width
broadenings take place as compared to the $S$-wave states. As the critical
change take place near $T_c$, related measurements can reveal critical
phenomenon in QCD. | Source: | arXiv, 0808.1153 | Services: | Forum | Review | PDF | Favorites |
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