In addition, by combining results on the decay dynamics with the predicted hadronic transition form factor, the CKM matrix element |Vcd| can be determined for the first time from charmed baryon. Fig. 1 The leading-order Feynman diagram for β+ decay of the charmed heavy baryon Λc+ into a...
Neutrinoless double-beta decay can arise from a diagram (Fig. 9) in which the parent nucleus emits a pair of virtual W bosons, and then, these W exchange a Majorana neutrino to produce the outgoing electrons. The rate is non-zero only for massive, Majorana neutrinos. The reason is that ...
The leading-order Feynman diagram forβ+decay of the charmed heavy baryonΛc+into a neutron (n), positron (e+), and electron neutrino (νe) via an intermediateW+boson. Full size image In practice, identifying the decayΛc+→ne+νefaces great challenges at BESIII32or other similar particl...
I was trying to understand beta decay as a beginner but came across some difficult point and need your guidance. Thank you! Hi, Please note that I'm trying to understand it at very basic level. I'd really appreciate if you could help me with the queries below. I was...
Majoron emitting neutrinoless double beta decay in the electroweak chiral gauge extensions”, Phys - Pisano, Sharma - 1998 () Citation Context ... µ − νe Y W ˜νµ e − ˜νµ e − Fig. 2. Feynman diagram for the wrong muon decay µ − → e − νe˜ν...
TheFeynman diagramfor the beta decay of a neutron into a proton, electron, and electron antineutrino via an intermediate heavy W- boson Beta decayis the emission of either anelectronor apositronfrom the nucleus of an atom.[1] It is one of three major types ofradioactivity(the other two bei...
Double Beta DecayBoson-Exchange ModelsCurrentsDecay AmplitudesFeynman DiagramGamow-Teller RulesNeutrinosBy using a field theory approach a detailed analysis of the two neutrino double beta decay amplitude has been performed. We have shown that the summation over the intermediate nuclear states in the ...
(S_L), for the purpose of generating light neutrino mass through natural type-II seesaw term, as the type-I seesaw term gets exactly cancelled out in the presence ofS_L. More importantly this scenario may lead to new non-standard contributions to neutrinoless double beta decay, lepton ...
a suitable dark matter candidate. The predictions of the model for thedecay rate could be tested in near future experiments. There are non-unitarity deviations from the lepton mixing matrixwhich could in principle explain the new precision measurement of the W-boson mass recently reported by the ...
To obtain the Regge contribution to F 3 , π ( 0 ) , depicted by the third diagram in Figure 5, from the full lattice result, the non-asymptotic low-energy part, specific to the pion decay, has to be removed. This latter contribution comprises 2 π , 4 π , … intermediate states...