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Physics, Particles & Fields
Giacomo Cacciapaglia, Martin Rosenlyst
Summary: The model presents a composite scotogenic model for neutrino masses, generated through loops of DOUBLE-STRUCK CAPITAL Z(2)-odd composite scalars and considering three different approaches to the couplings between neutrinos and the composite sector. If the masses of the three DOUBLE-STRUCK CAPITAL Z(2)-odd right-handed neutrinos are between the TeV and Planck scales, the model can have sizable couplings and remain viable with respect to various experimental constraints. Additionally, the lightest DOUBLE-STRUCK CAPITAL Z(2)-odd composite scalar may serve as Dark Matter via thermal freeze-out or as an asymmetric relic, featured in various models based on vacuum misalignment.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
H. Bonet, A. Bonhomme, C. Buck, K. Fuelber, J. Hakenmueller, G. Heusser, T. Hugle, M. Lindner, W. Maneschg, T. Rink, H. Strecker, R. Wink
Summary: The measurements from the coherent elastic neutrino-nucleus scattering (CE nu NS) experiments have opened up possibilities to study neutrino physics beyond the standard model. This paper presents constraints on non-standard interactions (NSIs) and mediators derived from CONUS germanium data. The study found that the CONUS experiment has set the world's best limits on tensor NSIs and has the potential to probe coupling constants for scalar and vector mediators.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Carlos Bautista, Leonardo de Lima, Ricardo D'Elia Matheus, Eduardo Ponton, Leonidas A. Fernandes do Prado, Aurore Savoy-Navarro
Summary: In this study, the production of t (t) over barh and t (t) over bar hh at hadron colliders in the minimal Composite Higgs Models based on the coset SO(5)/SO(4) is investigated, with a focus on the fermionic representations 5 and 14. The analysis shows that in certain regions of parameter space, the three-body decay channel W(+)W(-)t becomes significant in the production of top partners, especially in a degenerate spectrum, and this significance is further enhanced by increasing the top partner's mass.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Zackaria Chacko, Patrick J. Fox, Roni Harnik, Zhen Liu
Summary: The class of models discussed involves neutrinos acquiring Majorana masses through mixing with singlet neutrinos in a strongly coupled hidden sector. The small parameters necessary for observed neutrino masses naturally arise from the scaling dimensions of operators in the conformal field theory. This class of models has implications for experiments such as colliders, beam dumps, searches for lepton flavor violation, neutrinoless double beta decay, and cosmological observations.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
John Gargalionis, Raymond R. Volkas
Summary: Building UV completions of lepton-number-violating effective operators is a useful way to study and classify models of Majorana neutrino mass. An algorithm described in this paper systematically generates computational representations of all tree-level completions of the operators up to mass-dimension 11, showing that some operators do not play a dominant role in neutrino-mass generation. The study also identifies at most five models containing three or fewer exotic multiplets predicting new physics below 100 TeV.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Mehedi Masud, Poonam Mehta, Christoph A. Ternes, Mariam Tortola
Summary: In this study, an alternative approach based on unitarity triangles is proposed to describe neutrino oscillations under non-standard interactions (NSI). By using perturbation theory, the expression for the oscillation probability in the presence of NSI is derived and expressed in terms of the three independent parameters of the leptonic unitarity triangle (LUT). The geometric view facilitated by the form invariance of the probability expression allows for expressing oscillation probabilities for a given pair of neutrino flavors using only three degrees of freedom related to the geometric properties of the triangle.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Astronomy & Astrophysics
Giorgio Arcadi, Jacinto Paulo Neto, Farinaldo S. Queiroz, Clarissa Siqueira
Summary: This article discusses a model of right-handed neutrino dark matter and its interactions with Standard Model particles, exploring the production mechanisms of dark matter and its decoupling in different domination eras. The direct detection rate of dark matter is analyzed, along with a comparison to existing physics theories.
Article
Astronomy & Astrophysics
Shashank Shalgar, Irene Tamborra, Mauricio Bustamante
Summary: The study suggests that secret interactions among neutrinos in the supernova core could impact the explosion process. Additionally, secret interactions during the transport of neutrinos to Earth may lead to a decrease in energy levels. By investigating supernova neutrinos, the researchers placed the most stringent constraints on flavor-universal secret interactions via a new mediator with mass between 10 MeV and 1 GeV.
Article
Physics, Particles & Fields
Xun-Jie Xu, Bingrong Yu
Summary: This paper investigates how the form of neutrino-mediated potential can be altered based on the distance between two objects. It considers two scenarios of introducing different mediators to open up contact interactions. A general formula is derived to describe the potential in all regimes, with the expectation of a decrease in potential in the long-range limit and specific behaviors in the short-range limit.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
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Computer Science, Artificial Intelligence
Jinshan Pan, Jiangxin Dong, Yang Liu, Jiawei Zhang, Jimmy Ren, Jinhui Tang, Yu-Wing Tai, Ming-Hsuan Yang
Summary: This study proposes an algorithm that addresses image restoration problems using generative models with adversarial learning, guided by physics models and trained in an end-to-end fashion for various low-level vision tasks, demonstrating superior performance compared to existing algorithms through extensive experiments.
IEEE TRANSACTIONS ON PATTERN ANALYSIS AND MACHINE INTELLIGENCE
(2021)
Article
Physics, Particles & Fields
G. Cacciapaglia, T. Flacke, M. Kunkel, W. Porod
Summary: In this study, we investigate the LHC phenomenology of a particular composite Higgs model that includes SU(3) color octet top partners and color singlet top partners, in addition to the usually considered triplet representations. We highlight that some of these unusual top partners may bear resemblance to the gluinos predicted in supersymmetric models.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Editorial Material
Multidisciplinary Sciences
Jun Cao
Summary: An unusual measurement from a nuclear reactor led to a three-year hunt for the elusive sterile neutrino. The search definitively proves that sterile neutrinos do not exist, yet the anomaly continues to persist.
Article
Astronomy & Astrophysics
Hisakazu Minakata
Summary: This paper establishes a prescription for amplitude decomposition using the perturbative framework proposed by Denton et al., covering the entire kinematical region of terrestrial neutrino experiments. It analyzes the limits to atmospheric- and solar-resonance regions, arguing that the two modes of the decomposition can be interpreted as matter-dressed atmospheric and solar oscillations. The study further reveals the nature of psi (theta(12) in matter) symmetry and presents a unified perturbative framework for neutrino oscillation in earth matter.
Article
Physics, Particles & Fields
Stefania De Curtis, Stefano Moretti, Ryo Nagai, Kei Yagyu
Summary: In this study, CP-Violation effects in a Composite 2-Higgs Doublet Model were investigated, showing that non-trivial complex phases in interactions can induce CPV effects in the Higgs potential and Yukawa coupling parameters. The analysis also revealed significant CPV effects even with just one complex phase in the strong sector of the model.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Ayuki Kamada, Takumi Kuwahara
Summary: This study discusses the visible decay searches for composite asymmetric dark matter models, and shows that the LHC lifetime frontier, such as MATHUSLA and FASER, as well as fixed-target experiments like SeaQuest, have a great potential to discover the decay of dark matter under certain conditions of kinetic mixing angle.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
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Physics, Particles & Fields
Ismael Romero, Oscar A. Sampayo
EUROPEAN PHYSICAL JOURNAL C
(2010)
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Physics, Particles & Fields
Ismael Romero, Oscar A. Sampayo
EUROPEAN PHYSICAL JOURNAL C
(2011)
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Physics, Multidisciplinary
Alejandro Gutierrez-Rodriguez, Angeles Hernandez-Ruiz, Oscar Sampayo, Andrei Chubykalo, Augusto Espinoza-Garrido
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
(2008)
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Astronomy & Astrophysics
Javier Peressutti, Ismael Romero, Oscar A. Sampayo
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Astronomy & Astrophysics
Matias M. Reynoso, Ismael Romero, Oscar A. Sampayo
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Astronomy & Astrophysics
Matias M. Reynoso, Oscar A. Sampayo
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Astronomy & Astrophysics
MM Reynoso, OA Sampayo
ASTROPARTICLE PHYSICS
(2004)
