Fermion Resonances on a Thick Brane with a Piecewise Warp Factor
arXiv:1006.4240 · doi:10.1103/PhysRevD.83.045006
Abstract
In this paper, we mainly investigate the problems of resonances of massive KK fermions on a single scalar constructed thick brane with a piecewise warp factor matching smoothly. The distance between two boundaries and the other parameters are determined by one free parameter through three junction conditions. For the generalized Yukawa coupling with odd , the mass eigenvalue , width , lifetime , and maximal probability of fermion resonances are obtained. Our numerical calculations show that the brane without internal structure also favors the appearance of resonant states for both left- and right-handed fermions. The scalar-fermion coupling and the thickness of the brane influence the resonant behaviors of the massive KK fermions.
V3: 15 pages, 7 figures, published version
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