Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2003-12-15
Phys.Rev. D70 (2004) 074002
Physics
High Energy Physics
High Energy Physics - Phenomenology
28 pages, 3 figure, sectionalized, added several new analyses including an analysis on the decay processes of excited heavy me
Scientific paper
10.1103/PhysRevD.70.074002
Starting with a hidden local symmetry Lagrangian at the vector manifestation (VM) fixed point that incorporates heavy-quark symmetry and matching the bare theory to QCD, we calculate the splitting of chiral doublers of heavy-light mesons proposed by Nowak, Rho and Zahed, and Bardeen and Hill. We show, in the three-flavor chiral limit, that the splitting is directly proportional to the light-quark condensate <\bar{q}q> and comes out to be \sim (1/3) m_N where m_N is the nucleon mass, implying that the splitting vanishes in the chiral limit at the chiral restoration point -- temperature T_c, density n_c or number of flavors N_F^c. The result turns out to be surprisingly simple with the vector (\rho) meson playing the crucial role in quantum corrections, pointing to the relevance of the VM to QCD in the way chiral symmetry is manifested in hadronic matter. We also make predictions on the hadronic decay processes of the excited heavy (charm) -light mesons \tilde{D}.
Harada Masayasu
Rho Mannque
Sasaki Chihiro
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