Study Majorana neutrino contribution to B -meson semi-leptonic rare decays

Wang, Ying; Bao, Shou-Shan; Li, Zuo-Hong; Zhu, Nan; Si, Zong-Guo

doi:10.1016/j.physletb.2014.08.006

Cited by 37 publications

(37 citation statements)

References 59 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Here a realistic detector size of 10 m has been assumed. The corresponding limits from D and B meson decays [204][205][206] are found to be weaker than the existing limits in the relevant mass region, and therefore, are not shown here, except the recent LHCb bound [207] . This limitation could be overcome by increasing the flux of initial hadrons, e.g.…”

Section: Rare Lnv Decays Of Mesonsmentioning

confidence: 63%

Neutrinos and collider physics

2015

View full text Add to dashboard Cite

We review the collider phenomenology of neutrino physics and the synergetic aspects at energy, intensity and cosmic frontiers to test the new physics behind the neutrino mass mechanism. In particular, we focus on seesaw models within the minimal setup as well as with extended gauge and/or Higgs sectors, and on supersymmetric neutrino mass models with seesaw mechanism and with Rparity violation. In the simplest type-I seesaw scenario with sterile neutrinos, we summarize and update the current experimental constraints on the sterile neutrino mass and its mixing with the active neutrinos. We also discuss the future experimental prospects of testing the seesaw mechanism at colliders and in related low-energy searches for rare processes, such as lepton flavor violation and neutrinoless double beta decay. The implications of the discovery of lepton number violation at the Large Hadron Collider for leptogenesis are also studied.

show abstract

Section: Rare Lnv Decays Of Mesonsmentioning

confidence: 63%

Neutrinos and collider physics

2015

View full text Add to dashboard Cite

show abstract

“…2 for = µ assuming a 10 meter detector size. The limits from the D and B meson decays [114][115][116] are weaker than the current LHCb bounds [117]. The revised LHCb bounds are shown in Fig.…”

Section: Current Bounds On the Rhn Mixing Anglesmentioning

confidence: 80%

Probing heavy neutrino oscillations in rare W boson decays

Cvetič

Das²,

Zamora-Saá

2019

J. Phys. G: Nucl. Part. Phys.

View full text Add to dashboard Cite

In this work, we study the lepton number violating W boson and top quark decays via intermediate on-shell Majorana neutrinos Nj into three charged leptons and a light neutrino. We discuss the neutrino oscillation effects present in the decay due to the small mass gap between the heavy neutrino states (∆MN ∼ ΓN ). We focus on a scenario that contains at least two heavy Majorana neutrinos in the mass range ∼ 2−80 GeV. The results indicate that the modulation of the branching ratios as a function of the distance between the vertices may be detected in a future experiment such as High-Luminosity Large Hadron Collider. As a secondary result, the CP-violating phases could be explored. Experiment type Decays Comments π → eN [83-87] The 90% C. L. limits Meson decay K → eN [88] for e (µ) on |BeN | 2 (|BµN | 2 ) K → µN [ [88][89][90][91][92] shown in Fig. 1 (Fig. 2) as 'Belle'. Heavier meson/ B → X N, N → π [93] BB pair coming from baryon decay[94-96] Υ(4s) resonance which can put 90% C. L. limits on |BeN | 2 and |BµN | 2 for the RHN between 500 MeV≤ MN ≤ 5 GeV are shown as 'Belle'.TABLE I: Peak search experiments to study the constraints on |B N | 2 .π → µN [97-101] limit is derived between 1 MeV ≤ MN ≤ 30 MeV and has been omitted from Fig. 2 due to the choice of MN .

show abstract

“…Besides of the 0νββ decays and ν →ν oscillations studied in this paper, there are other LNV effects which are also expected to be large due to new contributions from O 7 . One kind of the promising processes is the LNV rare meson decays [41,[88][89][90][91][92][93][94][95][96][97], such as D ± s → µ ± µ ± π ∓ , which might be tested by the LHCb experiments. Another kind of interesting observables involves the LNV channels at the LHC, e.g., the like-sign lepton signature, pp → l ± l ± jj [98][99][100][101][102][103].…”

Section: Jhep03(2017)103mentioning

confidence: 99%

Large ν ‐ ν ¯ $$ \nu \hbox{-} \overline{\nu} $$ oscillations from high-dimensional lepton number violating operator

Geng

Huang

2017

J. High Energ. Phys.

View full text Add to dashboard Cite

It is usually believed that the observation of the neutrino-antineutrino (ν-ν) oscillations is almost impossible since the oscillation probabilities are expected to be greatly suppressed by the square of tiny ratio of neutrino masses to energies. Such an argument is applicable to most models for neutrino mass generation based on the Weinberg operator, including the seesaw models. However, in the present paper, we shall give a counterexample to this argument, and show that large ν-ν oscillation probabilities can be obtained in a class of models in which both neutrino masses and neutrinoless double beta (0νββ) decays are induced by the high-dimensional lepton number violating operator O 7 =ū R l c RL L H * d R + H.c. with u and d representing the first two generations of quarks. In particular, we find that the predicted 0νββ decay rates have already placed interesting constraints on the ν e ↔ν e oscillation. Moreover, we provide an UV-complete model to realize this scenario, in which a dark matter candidate naturally appears due to the new U(1) d symmetry.

show abstract

Study Majorana neutrino contribution to B -meson semi-leptonic rare decays

Cited by 37 publications

References 59 publications

Neutrinos and collider physics

Neutrinos and collider physics

Probing heavy neutrino oscillations in rare W boson decays

Large ν ‐ ν ¯ $$ \nu \hbox{-} \overline{\nu} $$ oscillations from high-dimensional lepton number violating operator

Contact Info

Product

Resources

About