scholarly journals ANALYSIS OF MASS MODIFICATIONS OF THE VECTOR AND AXIAL VECTOR HEAVY MESONS IN THE NUCLEAR MATTER WITH THE QCD SUM RULES

2013 ◽  
Vol 28 (14) ◽  
pp. 1350049 ◽  
Author(s):  
ZHI-GANG WANG

In this paper, we calculate the mass modifications of the vector and axial vector mesons D*, B*, D1 and B1 in the nuclear matter with the QCD sum rules, and obtain the mass-shifts δMD* = -71 MeV , δMB* = -380 MeV , δMD1 = 72 MeV , δMB1 = 264 MeV , and the scattering lengths aD* = -1.07 fm , aB* = -7.17 fm , aD1 = 1.15 fm and aB1 = 5.03 fm for the D*N, B*N, D1N and B1N interactions, respectively.

1995 ◽  
Vol 52 (6) ◽  
pp. 3344-3352 ◽  
Author(s):  
Xuemin Jin ◽  
Derek B. Leinweber

2016 ◽  
Vol 31 (20n21) ◽  
pp. 1650116 ◽  
Author(s):  
Yabing Zuo ◽  
Yue Hu ◽  
Linlin He ◽  
Wei Yang ◽  
Yan Chen ◽  
...  

By using the 3-point QCD sum rules, we calculate the transition form factors of [Formula: see text] decays into the spin triplet axial vector mesons [Formula: see text], [Formula: see text], [Formula: see text]. In the calculations, we consider the quark contents of each meson in detail. In view of the fact that the isospin of [Formula: see text] is one, we calculate the [Formula: see text] and [Formula: see text] transition form factors separately. In the case of [Formula: see text], [Formula: see text], the mixing between light flavor [Formula: see text] singlet and octet is taken into account. Based on the form factors obtained here, we give predictions for the branching ratios of relevant semileptonic decays, which can be tested in the future experiments.


2017 ◽  
Vol 2017 ◽  
pp. 1-24 ◽  
Author(s):  
Alejandro Ayala ◽  
C. A. Dominguez ◽  
M. Loewe

The method of QCD sum rules at finite temperature is reviewed, with emphasis on recent results. These include predictions for the survival of charmonium and bottonium states, at and beyond the critical temperature for deconfinement, as later confirmed by lattice QCD simulations. Also included are determinations in the light-quark vector and axial-vector channels, allowing analysing the Weinberg sum rules and predicting the dimuon spectrum in heavy-ion collisions in the region of the rho-meson. Also, in this sector, the determination of the temperature behaviour of the up-down quark mass, together with the pion decay constant, will be described. Finally, an extension of the QCD sum rule method to incorporate finite baryon chemical potential is reviewed.


2010 ◽  
Vol 81 (6) ◽  
Author(s):  
Youngshin Kwon ◽  
Chihiro Sasaki ◽  
Wolfram Weise

2021 ◽  
Vol 104 (5) ◽  
Author(s):  
Ralf-Arno Tripolt ◽  
Christopher Jung ◽  
Lorenz von Smekal ◽  
Jochen Wambach

Sign in / Sign up

Export Citation Format

Share Document