scholarly journals Light scalars with lepton number to solve the (g−2)e anomaly

2020 ◽  
Vol 102 (7) ◽  
Author(s):  
Susan Gardner ◽  
Xinshuai Yan
Keyword(s):  
Lepton Number

scholarly journals Retraction of the paper entitled “Lepton number violation in a unified framework“

2020 ◽  
Vol 2020 (12) ◽  
Author(s):  
Apriadi Salim Adam ◽  
Yuta Kawamura ◽  
Yamato Matsuo ◽  
Takuya Morozumi ◽  
Yusuke Shimizu ◽  
...  
Keyword(s):  
Mass Function ◽  
Lepton Number ◽  
Primordial Black Hole ◽  
Unified Framework ◽  
Extra Condition ◽  
Formal Expression ◽  
Lepton Number Violation ◽  
Standard Criterion ◽  
New Criterion ◽  
New Formula

Abstract Computations of the primordial black hole (PBH) mass function discussed in the literature have conceptual issues. They stem from the fact that the mass function is a differential quantity and the standard criterion of the PBH formation from the seed primordial fluctuations cannot be directly applied to the computation of the differential quantities. We propose a new criterion of the PBH formation, which is the addition of one extra condition to the existing one. By doing this, we derive a formal expression of the PBH mass function without introducing any ambiguous interpretations that exist in the previous studies. Once the underlying primordial fluctuations are specified, the PBH mass function can be in principle determined by the new formula. As a demonstration of our formulation, we compute the PBH mass function analytically for the case where the perturbations are Gaussian and the space is 1 dimension.

scholarly journals Search for lepton-number- and baryon-number-violating tau decays at Belle

2020 ◽  
Vol 102 (11) ◽  
Author(s):  
D. Sahoo ◽  
G. B. Mohanty ◽  
K. Trabelsi ◽  
I. Adachi ◽  
K. Adamczyk ◽  
...  
Keyword(s):  
Baryon Number ◽  
Lepton Number ◽  
Tau Decays

scholarly journals Neutrino parameters in the Planck-scale lepton number breaking scenario with extended scalar sectors

2021 ◽  
Vol 103 (3) ◽  
Author(s):  
Cesar Bonilla ◽  
Johannes Herms ◽  
Alejandro Ibarra ◽  
Patrick Strobl
Keyword(s):  
Planck Scale ◽  
Lepton Number

scholarly journals Electroweak symmetry breaking in the inverse seesaw mechanism

2021 ◽  
Vol 2021 (3) ◽  
Author(s):  
Sanjoy Mandal ◽  
Rahul Srivastava ◽  
José W. F. Valle
Keyword(s):  
Planck Scale ◽  
Lepton Number ◽  
Electroweak Symmetry Breaking ◽  
Electroweak Symmetry ◽  
Seesaw Mechanism ◽  
Yukawa Couplings ◽  
Lepton Number Violation ◽  
Higgs Vacuum ◽  
The Standard Model ◽  
The Stability

Abstract We investigate the stability of Higgs potential in inverse seesaw models. We derive the full two-loop RGEs of the relevant parameters, such as the quartic Higgs self-coupling, taking thresholds into account. We find that for relatively large Yukawa couplings the Higgs quartic self-coupling goes negative well below the Standard Model instability scale ∼ 1010 GeV. We show, however, that the “dynamical” inverse seesaw with spontaneous lepton number violation can lead to a completely consistent and stable Higgs vacuum up to the Planck scale.

Lepton-number violation and baryogenesis in a U(1)Y′ model

1993 ◽  
Vol 299 (3-4) ◽  
pp. 281-285 ◽  
Author(s):  
Kari Enqvist ◽  
Iiro Vilja
Keyword(s):  
Lepton Number ◽  
Lepton Number Violation ◽  
Number Violation

scholarly journals NEUTRINO COUPLING TO COSMOLOGICAL BACKGROUND: A REVIEW ON GRAVITATIONAL BARYO/LEPTOGENESIS

2013 ◽  
Vol 22 (12) ◽  
pp. 1330030 ◽  
Author(s):  
GAETANO LAMBIASE ◽  
SUBHENDRA MOHANTY ◽  
ARAGAM R. PRASANNA
Keyword(s):  
Field Theory ◽  
Gravitational Field ◽  
Thermal Equilibrium ◽  
Energy Levels ◽  
Lepton Number ◽  
Cpt Symmetry ◽  
Cosmological Background ◽  
The Universe ◽  
General Conditions ◽  
Lepton Number Violating

In this paper, we review the theories of origin of matter–antimatter asymmetry in the universe. The general conditions for achieving baryogenesis and leptogenesis in a CPT conserving field theory have been laid down by Sakharov. In this review, we discuss scenarios where a background scalar or gravitational field spontaneously breaks the CPT symmetry and splits the energy levels between particles and antiparticles. Baryon or Lepton number violating processes in proceeding at thermal equilibrium in such backgrounds gives rise to Baryon or Lepton number asymmetry.

scholarly journals Extended Black box theorem for lepton number and flavor violating processes

2006 ◽  
Vol 642 (1-2) ◽  
pp. 106-110 ◽  
Author(s):  
Martin Hirsch ◽  
Sergey Kovalenko ◽  
Ivan Schmidt
Keyword(s):  
Black Box ◽  
Lepton Number

scholarly journals Baryogenesis via lepton-number-violating scalar interactions

1994 ◽  
Vol 49 (4) ◽  
pp. 2118-2121 ◽  
Author(s):  
Patrick J. O'Donnell ◽  
Utpal Sarkar
Keyword(s):  
Lepton Number ◽  
Lepton Number Violating
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