Article
Astronomy & Astrophysics
Rupert Coy, Michele Frigerio
Summary: New physics in the lepton sector has implications for neutrino masses, electroweak precision observables, charged-lepton flavor violation, and dipole moments. Effective field theory is a convenient formalism for comparing low-energy predictions of different models. By deriving the Wilson coefficients for representative models and considering various lepton observables, it becomes straightforward to understand the allowed parameter space for each model and discriminate between them. The Zee and leptoquark models are particularly relevant for explaining the muon g-2 anomaly.
Article
Astronomy & Astrophysics
David Cerdeno, Marina Cermeno, Yasaman Farzan
Summary: In this article, the on-shell production of low-mass vector mediators from neutrino-antineutrino coalescence in the core of protoneutron stars is studied. The neutrino-antineutrino interaction rate in the star interior is computed considering the radial dependence of the density, energy, and temperature inside the protoneutron star. It is shown that the on-shell production of a long-lived Z' and its subsequent decay into neutrinos can significantly reduce the duration of the neutrino burst, probing values of the coupling below O(10-7) for mediator masses between 10 and 100 MeV, which disfavors new areas of the parameter space of the U(1)L,-L, model.
Article
Physics, Multidisciplinary
Hui-Chao Bao, Xin-Yu Zhao, Zhen-hua Zhao
Summary: This letter attempts to embed the mu-tau reflection symmetry in the Friedberg-Lee neutrino model and study the consequences of such a combination.
COMMUNICATIONS IN THEORETICAL PHYSICS
(2022)
Article
Geochemistry & Geophysics
Maryam Salim, Shurun Tan, Roger D. De Roo, Andreas Colliander, Kamal Sarabandi
Summary: This article presents a unified framework for vegetation scattering using radiative transfer theory, suitable for both passive and active remote sensing of vegetated land surfaces, especially those with large vegetation water contents (VWC) like forests. The framework allows for modeling microwave signatures of vegetated fields with the same physical parameters describing vegetation structure, and the iterative approach used can include higher order scattering effects, essential for accurate modeling in areas with large VWCs such as forests. Multiple scattering is shown to be crucial for accurate forward modeling, especially over forested areas, and the proposed model is validated with passive and active L-band sensor (PALS) measurements, demonstrating its applicability.
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
(2022)
Article
Physics, Nuclear
Arslan Sikandar, M. Jamil Aslam, Ishtiaq Ahmed, Saba Shafaq
Summary: This study calculated perturbative corrections for B -> T mu (+) mu (-) decays, finding an increase of 13% in the branching ratio and the zero position of the forward-backward asymmetry. The research highlights the importance of considering vertex and hard-spectator corrections before attributing any deviations from Standard Model predictions of these asymmetries as a hint of New Physics.
JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
(2022)
Article
Physics, Multidisciplinary
J. D. Garcia-Aguilar, A. E. Pozas Ramirez, M. M. Suarez Castaneda, J. C. Gomez-Izquierdo
Summary: The mu <-> tau symmetry has been ruled out as it predicts incorrect values for reactor and atmospheric angles. However, a breaking of this symmetry in a non-renormalizable lepton model can provide correct values by using the see-saw mechanism. Additionally, a link between the atmospheric and reactor angles is pointed out.
REVISTA MEXICANA DE FISICA
(2023)
Article
Physics, Particles & Fields
Chayan Majumdar, Supriya Senapati, S. Uma Sankar, Urjit A. Yajnik
Summary: This article presents an U(1)(L mu-L tau) extended left-right symmetric gauge theory where neutrino masses are generated through the inverse seesaw mechanism. The model addresses the muon (g-2) anomaly through the mediation of the U(1)(L mu-L tau) symmetry gauge boson, Z(mu tau). The symmetries of the model impose constraints on the light neutrino mass matrix, leading to non-trivial limitations on the minimum neutrino mass. Additionally, the model predicts observable charged lepton flavor violation in the mu - tau sector.
Article
Chemistry, Physical
Ayaki Sunaga, Trond Saue
Summary: In this study, parity-violating energies E-PV of H2X2 molecules were calculated and radiative corrections were investigated, with a maximal value of 2.38% found for H2Po2. The results may suggest limitations to the validity of effective self-energy potentials chosen in the analysis.
Article
Physics, Particles & Fields
J. Kriewald, J. Orloff, E. Pinsard, A. M. Teixeira
Summary: The apparent tensions observed in the experimental data could be a signal of New Physics and can be explained by a minimal extension of the Standard Model with a leptophilic vector boson. By considering specific couplings and constraints, the tensions in some observables can be resolved, while others remain consistent with the Standard Model.
EUROPEAN PHYSICAL JOURNAL C
(2022)
Article
Physics, Particles & Fields
Kh. Helensana Devi, K. Sashikanta Singh, N. Nimai Singh
Summary: This paper investigates the effects of variations in the SUSY breaking scale m(s) on neutrino masses and mixings, using both bottom-up and top-down approaches. The study reveals significant impacts of radiative corrections on neutrino parameters with the variation of m(s).
ADVANCES IN HIGH ENERGY PHYSICS
(2022)
Article
Physics, Nuclear
V. A. Zykunov
Summary: One-loop electroweak radiative corrections to the total cross section for the four-fermion process with a final neutrino state near the Z resonance were calculated and analyzed for resonance behavior of new bosons beyond the Standard Model.
PHYSICS OF ATOMIC NUCLEI
(2021)