TY - JOUR
T1 - Interference between light and heavy neutrinos for 0νββ decay in the left–right symmetric model
AU - Ahmed, Fahim
AU - Neacsu, Andrei
AU - Horoi, Mihai
N1 - Publisher Copyright:
© 2017 The Authors
PY - 2017/6/10
Y1 - 2017/6/10
N2 - Neutrinoless double-beta decay is proposed as an important low energy phenomenon that could test beyond the Standard Model physics. There are several potentially competing beyond the Standard Model mechanisms that can induce the process. It thus becomes important to disentangle the different processes. In the present study we consider the interference effect between the light left-handed and heavy right-handed Majorana neutrino exchange mechanisms. The decay rate, and consequently, the phase-space factors for the interference term are derived, based on the left–right symmetric model. The numerical values for the interference phase-space factors for several nuclides are calculated, taking into consideration the relativistic Coulomb distortion of the electron wave function and finite-size of the nucleus. The variation of the interference effect with the Q-value of the process is studied.
AB - Neutrinoless double-beta decay is proposed as an important low energy phenomenon that could test beyond the Standard Model physics. There are several potentially competing beyond the Standard Model mechanisms that can induce the process. It thus becomes important to disentangle the different processes. In the present study we consider the interference effect between the light left-handed and heavy right-handed Majorana neutrino exchange mechanisms. The decay rate, and consequently, the phase-space factors for the interference term are derived, based on the left–right symmetric model. The numerical values for the interference phase-space factors for several nuclides are calculated, taking into consideration the relativistic Coulomb distortion of the electron wave function and finite-size of the nucleus. The variation of the interference effect with the Q-value of the process is studied.
UR - http://www.scopus.com/inward/record.url?scp=85017140924&partnerID=8YFLogxK
U2 - 10.1016/j.physletb.2017.03.066
DO - 10.1016/j.physletb.2017.03.066
M3 - Article
AN - SCOPUS:85017140924
VL - 769
SP - 299
EP - 304
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
SN - 0370-2693
ER -