Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Gonzalo Alonso-Álvarez"'
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 84, Iss 5, Pp 1-6 (2024)
Abstract Motivated by the recent evidence for $$B^+\rightarrow K^+\bar{\nu } \nu $$ B + → K + ν ¯ ν decays at Belle II, we point out that fully invisible $$B_d$$ B d and $$B_s$$ B s meson decays are strongly constrained by LEP. A reinterpretatio
Externí odkaz:
https://doaj.org/article/13b8e72dd9e1475aa079952f7339d5e6
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 5, Pp 1-43 (2024)
Abstract We present the νϕMTH, a Mirror Twin Higgs (MTH) model realizing asymmetric reheating, baryogenesis and twin-baryogenesis through the out-of-equilibrium decay of a right-handed neutrino without any hard $${\mathbb{Z}}_{2}$$ breaking. The MT
Externí odkaz:
https://doaj.org/article/6d7c858829dd46d183191f25d8e615cd
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 2, Pp 1-25 (2024)
Abstract Dark matter from a hidden sector with SU(N) gauge symmetry can have a nonabelian kinetic mixing portal with the standard model. The dark photon becomes massive in the confining phase without the need for spontaneous symmetry breaking. Depend
Externí odkaz:
https://doaj.org/article/3ccec9917cae461da6116f2876ac1782
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 7, Pp 1-21 (2023)
Abstract We argue that demanding a consistent cosmological history, including the absence of domain walls and strongly interacting relics at the Peccei-Quinn scale, singles out two concrete realizations of hadronic QCD axions as viable dark matter mo
Externí odkaz:
https://doaj.org/article/ef557ad9e6714c0c8c13f9f8ed922fde
Autor:
Gonzalo Alonso-Álvarez, James M. Cline
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 3, Pp 1-27 (2022)
Abstract Gauging a specific difference of lepton numbers such as L μ − L τ is a popular model-building option, which gives rise to economical explanations for the muon anomalous magnetic moment. However, this choice of gauge group seems rather ar
Externí odkaz:
https://doaj.org/article/8f1fe032890e43f8823b4c636bd148fa
Autor:
Gonzalo Alonso-Álvarez, James M. Cline
Publikováno v:
Physics Letters B, Vol 833, Iss , Pp 137278- (2022)
Sterile neutrinos can be produced in the early universe via interactions with their active counterparts. For small active-sterile mixing angles, thermal equilibrium with the standard model plasma is not reached and sterile neutrinos are only produced
Externí odkaz:
https://doaj.org/article/6014479f22184f1f952721a651799683
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 7, Pp 1-54 (2021)
Abstract The axion is much lighter than all other degrees of freedom introduced by the Peccei-Quinn mechanism to solve the strong CP problem. It is therefore natural to use an effective field theory (EFT) to describe its interactions. Loop processes
Externí odkaz:
https://doaj.org/article/527fb5e71e6d47e5a3513d6d05d636c6
Publikováno v:
Journal of High Energy Physics, Vol 2020, Iss 3, Pp 1-51 (2020)
Abstract Low-scale baryogenesis and dark matter generation can occur via the production of neutral B mesons at MeV temperatures in the early Universe, which undergo CP-violating oscillations and subsequently decay into a dark sector. In this work, we
Externí odkaz:
https://doaj.org/article/f6434d36bf694cd49c144220d533a62c
Publikováno v:
Physical Review
A weakly coupled and light dark photon coupling to lepton charges $L_\mu-L_\tau$ is an intriguing dark matter candidate whose coherent oscillations alter the dispersion relations of leptons. We study how this effect modifies the dynamics of neutrino
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::73c28f6b459c9ec8c5485e03a295e56a
Autor:
Evgueni Goudzovski, Diego Redigolo, Kohsaku Tobioka, Jure Zupan, Gonzalo Alonso-Álvarez, Daniele S M Alves, Saurabh Bansal, Martin Bauer, Joachim Brod, Veronika Chobanova, Giancarlo D’Ambrosio, Alakabha Datta, Avital Dery, Francesco Dettori, Bogdan A Dobrescu, Babette Döbrich, Daniel Egana-Ugrinovic, Gilly Elor, Miguel Escudero, Marco Fabbrichesi, Bartosz Fornal, Patrick J Fox, Emidio Gabrielli, Li-Sheng Geng, Vladimir V Gligorov, Martin Gorbahn, Stefania Gori, Benjamín Grinstein, Yuval Grossman, Diego Guadagnoli, Samuel Homiller, Matheus Hostert, Kevin J Kelly, Teppei Kitahara, Simon Knapen, Gordan Krnjaic, Andrzej Kupsc, Sandra Kvedaraitė, Gaia Lanfranchi, Danny Marfatia, Jorge Martin Camalich, Diego Martínez Santos, Karim Massri, Patrick Meade, Matthew Moulson, Hajime Nanjo, Matthias Neubert, Maxim Pospelov, Sophie Renner, Stefan Schacht, Marvin Schnubel, Rui-Xiang Shi, Brian Shuve, Tommaso Spadaro, Yotam Soreq, Emmanuel Stamou, Olcyr Sumensari, Michele Tammaro, Jorge Terol-Calvo, Andrea Thamm, Yu-Chen Tung, Dayong Wang, Kei Yamamoto, Robert Ziegler
Publikováno v:
Reports on progress in physics. Physical Society (Great Britain).
Rare meson decays are among the most sensitive probes of both heavy and light new physics. Among them, new physics searches using kaons benefit from their small total decay widths and the availability of very large datasets. On the other hand, useful
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c1504947007b5099a8bce00cb37f0e06
https://pubmed.ncbi.nlm.nih.gov/36279851
https://pubmed.ncbi.nlm.nih.gov/36279851