Article
Astronomy & Astrophysics
Wei Liu, Jiale Li, Jing Li, Hao Sun
Summary: We investigate the pair production of right-handed neutrinos from the decay of a light B - L scalar in the U(1)(B-L )model. The produced right-handed neutrinos are predicted to be long-lived and can be detected through displaced-vertex and time-delayed lepton searches at various experimental setups. Utilizing the sensitivity reach at the High-Luminosity LHC, we show that the active-sterile mixing with muons can be probed to V-mu N similar to 10(-5) at CMS/KELAS/LHCb using displaced-vertex searches, and 1 order of magnitude lower at MATHUSLA/CMS using time-delayed lepton searches, reaching the parameter space of interest for type-I seesaw mechanisms.
Article
Astronomy & Astrophysics
Mathew Thomas Arun, Tanumoy Mandal, Subhadip Mitra, Ananya Mukherjee, Lakshmi Priya, Adithya Sampath
Summary: In left-right symmetric models, the decay of heavy gauge boson W' can differ based on the mechanism that generates neutrino masses. Investigating this unexplored process at HL-LHC can serve as a probe of the inverse seesaw mechanism in these models.
Article
Astronomy & Astrophysics
Zhen-hua Zhao, Xin-Yu Zhao, Hui-Chao Bao
Summary: In this paper, we investigate the simplified textures of M-D that can naturally yield the trimaximal neutrino mixings in the seesaw framework. We analyze the parameters of these textures and examine their consequences for the neutrino parameters and leptogenesis. Additionally, we propose a concrete flavor-symmetry model to realize one representation of these textures.
Article
Physics, Particles & Fields
Yong Du, Xu-Xiang Li, Jiang-Hao Yu
Summary: This article investigates the one-loop matching of type-I, -II, and -III seesaw models using the functional method and presents the results in both Green's and Warsaw bases. Although these models generate the same dimension-5 Weinberg operator, they can induce different types of dimension-6 effective operators that can be used for model discrimination. The study also finds significant threshold effects from one-loop matching, which allow for electroweak symmetry breaking radiatively in type-II seesaw but forbid it in type-I/-III models. An analytical criterion for such radiative symmetry breaking in type-II seesaw is derived. Furthermore, the indirect signatures from different types of dimension-6 operators at high-energy colliders, low-energy precision experiments, and forward physics facilities are investigated for model discrimination.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Astronomy & Astrophysics
Francesco Costa, Stephen F. King
Summary: In this study, we investigate neutrino mixing sum rules and models based on discrete symmetries and the Littlest Seesaw (LS) neutrino models. We examine solar and atmospheric neutrino mixing sum rules and LS models, and compare them to the latest global fits of the neutrino oscillation data. Our analysis provides up-to-date predictions and a comprehensive understanding of these possibilities.
Article
Astronomy & Astrophysics
Ernesto A. Matute
Summary: The model introduces new neutrino components and symmetry to explain neutrino mass issues, assuming heavy neutrinos do not affect low-energy phenomenology, using both high-scale and low-scale seesaw mechanisms to provide tiny neutrino masses, and ultimately yields a particle behaving like a Dirac sterile neutrino.
MODERN PHYSICS LETTERS A
(2021)
Article
Astronomy & Astrophysics
Sudhanwa Patra, S. T. Petcov, Prativa Pritimita, Purushottam Sahu
Summary: We discuss a left-right (L-R) symmetric model with the double seesaw mechanism at the TeV scale generating Majorana masses for the active left-handed (LH) flavor neutrinos vaL and the heavy right-handed (RH) neutrinos NfiR; a; fi = e; mu; z, which in turn mediate lepton number violating processes, including neutrinoless double beta decay. The results show that the contributions to the 0vfff decay amplitude and half-life in this model are strongly enhanced and dominant at relatively small values of the lightest neutrino mass m1(3) similar to (10-4-10-2) eV over the light Majorana neutrino exchange contribution. The model's predictions for the 0vfff decay generalized effective Majorana mass and half-life are within the sensitivity range of the planned next generation of neutrinoless double beta decay experiments.
Article
Physics, Nuclear
Wojciech Flieger, Janusz Gluza
Summary: This study uses insights from matrix theory to investigate various variants of seesaw mechanisms; By discussing and proving the conditions under which the seesaw framework leads to a mass spectrum with exactly three light neutrinos, an estimate of the mass of heavy neutrinos is obtained; Finally, the research opens new directions for further neutrino physics studies using matrix analysis by providing general observations on neutrino mixing and results on mass spectrum properties.
Article
Astronomy & Astrophysics
K. Ezzat, M. Ashry, S. Khalil
Summary: The model is based on SU(3)C x SU(2)(L) x SU(2)(R)x U(1)(B-L) x Z(2) symmetry, with a simplified Higgs sector consisting of one bidoublet and one SU(2)(R) doublet. The tiny neutrino masses are generated through an inverse-seesaw mechanism, and the tree-level flavor changing neutral current is strongly suppressed. The lightest CP-even Higgs boson and the next lightest Higgs boson are found to be from the neutral components of the bidoublet, with the latter having a mass in the few hundred GeV range. Detection of the next lightest Higgs boson at the LHC is analyzed for different center-of-mass energies and integrated luminosities, showing promising signals in various decay channels.
Article
Astronomy & Astrophysics
Simone Amoroso, Mauro Chiesa, Clara Lavinia Del Pio, Katerina Lipka, Fulvio Piccinini, Federico Vazzoler, Alessandro Vicini
Summary: Measurements of neutral current Drell-Yan production at large invariant dilepton masses are used to test the energy scale dependence of the electroweak mixing angle. A novel implementation of the full next-to-leading order electroweak radiative corrections to the Drell-Yan process is used, exploring the potential of future analyses using proton-proton collisions at & RADIC;s = 13.6 TeV. The Standard Model predictions for the MS running at TeV scales can be probed.
Article
Astronomy & Astrophysics
Andres Florez, Tomas Atehortua Garces, Jose D. Ruiz-Alvarez
Summary: The R-D(*) anomaly is a fascinating experimental result in particle physics that challenges the Standard Model. Several extensions of the SM, including heavy W0 bosons, leptoquarks with preferential couplings, and effective field theories, are studied to explain this tension. Feasibility studies are conducted at the LHC to explore each scenario, considering specific final states and optimized selection criteria. Different LHC running conditions and luminosities are taken into account.
Article
Astronomy & Astrophysics
C. Soumya
Summary: This paper investigates the capability of long-baseline experiments using neutrinos from the Japan Proton Accelerator Research Complex to establish the unitarity of active-neutrino mixing. It is found that T2HK can establish the unitarity of active neutrino mixing at above 2 sigma C.L. for a certain range of the nonunitary parameter alpha(21). The paper also discusses the limit on the nonunitary parameter in the 21 sector and the sensitivity limit of these experiments in determining the nonunitary parameter. The results show that the sensitivity limit of T2HK on the nonunitary parameter is better than that of both T2HKK and T2K.
Article
Physics, Nuclear
V. V. Vien
Summary: This article proposes a low-scale Standard Model extension with specific symmetries that can explain observed neutrino oscillation results and provides predictions for neutrino mass ordering, lepton mixing angles, and phases, which are consistent with experimental results.
Article
Astronomy & Astrophysics
Thede de Boer, Raffaela Busse, Alexander Kappes, Michael Klasen, Sybrand Zeinstra
Summary: Researchers calculated event rates for a radiative seesaw model containing scalar triplet and singlet-doublet fermion dark matter candidates. They found that scalar dark matter has a low capture rate in the Sun, while singlet-doublet fermion dark matter is more competitive in indirect detection due to the presence of spin dependent scattering. Limits set by XENON1T on the spin independent cross section also exclude parts of the parameter space that can be probed at IceCube.
Article
Astronomy & Astrophysics
Zhi-zhong Xing
Summary: Using a parameterization method, this study derives a general expression for the Jarlskog invariant of CP violation in neutrino oscillations, and compares it with the CP-violating asymmetries of heavy Majorana neutrino decays. Two simplified scenarios are discussed to illustrate the direct or indirect correlation between these two types of CP violation.
Article
Astronomy & Astrophysics
P. S. Bhupal Dev, Jean-Francois Fortin, Steven P. Harris, Kuver Sinha, Yongchao Zhang
Summary: Neutron star mergers provide a novel environment for studying new physics beyond the Standard Model. In this study, we considered a simple extension of the scalar sector involving a light CP-even scalar singlet S that mixes with the SM Higgs boson. We found that S particles can be produced abundantly in neutron star mergers and may either be trapped or stream freely out of the merger remnant. Our results show that the S particles can act as an extra cooling channel in the free-streaming region and contribute to faster thermal equilibration in the trapped region. Therefore, future observations of neutron star mergers could effectively probe a unique range of the S parameter space.
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
(2022)
Article
Physics, Nuclear
Jonathan L. Feng, Felix Kling, Mary Hall Reno, Juan Rojo, Dennis Soldin, Luis A. Anchordoqui, Jamie Boyd, Ahmed Ismail, Lucian Harland-Lang, Kevin J. Kelly, Vishvas Pandey, Sebastian Trojanowski, Yu-Dai Tsai, Jean-Marco Alameddine, Takeshi Araki, Akitaka Ariga, Tomoko Ariga, Kento Asai, Alessandro Bacchetta, Kincso Balazs, Alan J. Barr, Michele Battistin, Jianming Bian, Caterina Bertone, Weidong Bai, Pouya Bakhti, A. Baha Balantekin, Basabendu Barman, Brian Batell, Martin Bauer, Brian Bauer, Mathias Becker, Asher Berlin, Enrico Bertuzzo, Atri Bhattacharya, Marco Bonvini, Stewart T. Boogert, Alexey Boyarsky, Joseph Bramante, Vedran Brdar, Adrian Carmona, David W. Casper, Francesco Giovanni Celiberto, Francesco Cerutti, Grigorios Chachamis, Garv Chauhan, Matthew Citron, Emanuele Copello, Jean-Pierre Corso, Luc Darme, Raffaele Tito D'Agnolo, Neda Darvishi, Arindam Das, Giovanni De Lellis, Albert De Roeck, Jordy de Vries, Hans P. Dembinski, Sergey Demidov, Patrick DeNiverville, Peter B. Denton, Frank F. Deppisch, P. S. Bhupal Dev, Antonia Di Crescenzo, Keith R. Dienes, Milind Diwan, Herbi K. Dreiner, Yong Du, Bhaskar Dutta, Pit Duwentaester, Lucie Elie, Sebastian A. R. Ellis, Rikard Enberg, Yasaman Farzan, Max Fieg, Ana Luisa Foguel, Patrick Foldenauer, Saeid Foroughi-Abari, Jean-Francois Fortin, Alexander Friedland, Elina Fuchs, Michael Fucilla, Kai Gallmeister, Alfonso Garcia, Carlos A. Garcia Canal, Maria Vittoria Garzelli, Rhorry Gauld, Sumit Ghosh, Anish Ghoshal, Stephen Gibson, Francesco Giuli, Victor P. Goncalves, Dmitry Gorbunov, Srubabati Goswami, Silvia Grau, Julian Y. Guenther, Marco Guzzi, Andrew Haas, Timo Hakulinen, Steven P. Harris, Julia Harz, Juan Carlos Helo Herrera, Christopher S. Hill, Martin Hirsch, Timothy J. Hobbs, Stefan Hoche, Andrzej Hryczuk, Fei Huang, Tomohiro Inada, Angelo Infantino, Ameen Ismail, Richard Jacobsson, Sudip Jana, Yu Seon Jeong, Yongsoo Jho, Dmitry Kalashnikov, Timo J. Karkkainen, Cynthia Keppel, Jongkuk Kim, Michael Klasen, Spencer R. Klein, Pyungwon Ko, Dominik Koehler, Masahiro Komatsu, Karol Kovarik, Suchita Kulkarni, Jason Kumar, Karan Kumar, Jui-Lin Kuo, Frank Krauss, Aleksander Kusina, Maxim Laletin, Chiara Le Roux, Seung J. Lee, Hye-Sung Lee, Helena Lefebvre, Jinmian Li, Shuailong Li, Yichen Li, Wei Liu, Zhen Liu, Mickael Lonjon, Kun-Feng Lyu, Rafal Maciula, Roshan Mammen Abraham, Mohammad R. Masouminia, Josh McFayden, Oleksii Mikulenko, Mohammed M. A. Mohammed, Kirtimaan A. Mohan, Jorge G. Morfin, Ulrich Mosel, Martin Mosny, Khoirul F. Muzakka, Pavel Nadolsky, Toshiyuki Nakano, Saurabh Nangia, Angel Navascues Cornago, Laurence J. Nevay, Pierre Ninin, Emanuele R. Nocera, Takaaki Nomura, Rui Nunes, Nobuchika Okada, Fred Olness, John Osborne, Hidetoshi Otono, Maksym Ovchynnikov, Alessandro Papa, Junle Pei, Guillermo Peon, Gilad Perez, Luke Pickering, Simon Plaetzer, Ryan Plestid, Tanmay Kumar Poddar, Pablo Quilez, Mudit Rai, Meshkat Rajaee, Digesh Raut, Peter Reimitz, Filippo Resnati, Wolfgang Rhode, Peter Richardson, Adam Ritz, Hiroki Rokujo, Leszek Roszkowski, Tim Ruhe, Richard Ruiz, Marta Sabate-Gilarte, Alexander Sandrock, Ina Sarcevic, Subir Sarkar, Osamu Sato, Christiane Scherb, Ingo Schienbein, Holger Schulz, Pedro Schwaller, Sergio J. Sciutto, Dipan Sengupta, Lesya Shchutska, Takashi Shimomura, Federico Silvetti, Kuver Sinha, Torbjorn Sjostrand, Jan T. Sobczyk, Huayang Song, Jorge F. Soriano, Yotam Soreq, Anna Stasto, David Stuart, Shufang Su, Wei Su, Antoni Szczurek, Zahra Tabrizi, Yosuke Takubo, Marco Taoso, Brooks Thomas, Pierre Thonet, Douglas Tuckler, Agustin Sabio Vera, Heinz Vincke, K. N. Vishnudath, Zeren Simon Wang, Martin W. Winkler, Wenjie Wu, Keping Xie, Xun-Jie Xu, Tevong You, Ji-Young Yu, Jiang-Hao Yu, Korinna Zapp, Yongchao Zhang, Yue Zhang, Guanghui Zhou, Renata Zukanovich Funchal
Summary: High energy collisions at the High-Luminosity Large Hadron Collider (LHC) produce a large number of particles beyond the acceptance of existing experiments. The proposed Forward Physics Facility (FPF) will host experiments to probe standard model processes and search for physics beyond the standard model (BSM). FPF experiments will explore BSM physics through searches for new particle scattering or decay signatures and deviations from SM expectations in a low-background environment.
JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
(2023)
Article
Physics, Particles & Fields
Garv Chauhan, P. S. Bhupal Dev
Summary: We propose a low-scale type-I seesaw scenario with discrete flavor and CP symmetries that not only explains the measured values of lepton mixing angles but also predicts leptonic CP violation and connects low-energy CP phases with high-energy CP phases. The scenario involves three quasi-degenerate right-handed Majorana neutrinos whose decays can explain the observed baryon asymmetry through resonant leptogenesis. The study explores the correlation between the predicted baryon asymmetry and lepton-number-violating signals at high-energy colliders and low-energy neutrinoless double beta decay experiments.
Article
Astronomy & Astrophysics
Garv Chauhan, P. S. Bhupal Dev, Xun-Jie Xu
Summary: The article discusses a hidden U(1) gauge symmetry where only the right-handed neutrinos (vR) are charged. The corresponding gauge boson, called the vR-philic Z', can be experimentally accessible through loop-induced couplings via left-right neutrino mixing. The vR-philic Z' has stronger couplings to neutrinos than to charged leptons and quarks, making it an interesting scenario for future neutrino experiments.
Article
Engineering, Aerospace
Farzane Shirazi, Ephraim Gau, Md. Arman Hossen, Daniel Becker, Daniel Schmidt, Daniel Swetz, Douglas Bennett, Dana Braun, Fabian Kislat, Johnathon Gard, John Mates, Joel Weber, Nicole Rodriguez Cavero, Sohee Chun, Lindsey Lisalda, Andrew West, Bhupal Dev, Francesc Ferrer, Richard Bose, Joel Ullom, Henric Krawczynski
Summary: This paper introduces a new concept called 511-CAM, which combines focusing-ray optics with a stack of transition edge sensor microcalorimeter arrays in the focal plane for 511 keV gamma-ray imaging. This technology has unprecedented energy resolution and angular resolution, which is of great importance for identifying the origin of the 511 keV emission.
JOURNAL OF ASTRONOMICAL TELESCOPES INSTRUMENTS AND SYSTEMS
(2023)
Article
Astronomy & Astrophysics
Yoav Afik, P. S. Bhupal Dev, Amarjit Soni, Fang Xu
Summary: The longstanding muon (g - 2) anomaly and hints of lepton flavor universality violation in B-meson decays may indicate new physics beyond the Standard Model (SM). The RPV3 framework, which involves light third-generation sfermions, presents a compelling solution to these flavor anomalies and other issues in the SM. We propose a new RPV3 scenario to explain the muon (g - 2) anomaly and suggest strategies to improve the current constraints using LHC data.
Article
Astronomy & Astrophysics
Rahool Kumar Barman, P. S. Bhupal Dev, Anil Thapa
Summary: We explore the parameter space of lepton flavor violating neutral Higgs Yukawa couplings and study the LFV prospects of a generic beyond the Standard Model neutral Higgs boson with a mass range of [20; 800] GeV at the high-luminosity Large Hadron Collider (HL-LHC) using the vector boson fusion (VBF) Higgs production process. We compare our projected sensitivities for the Standard Model Higgs LFV branching ratio with current and future low-energy constraints, and also provide model-independent upper limits on the VBF production cross section of the neutral Higgs boson times its branching ratio in the H-mu tau channel at the HL-LHC.
Article
Astronomy & Astrophysics
Saumyen Kundu, Atanu Guha, Prasanta Kumar Das, P. S. Bhupal Dev
Summary: In this study, we consider the interaction between dark matter and Standard Model leptons. We analyze the potential of future lepton colliders to detect such leptophilic dark matter in the mono-photon and mono-Z channels. Using an effective field theory framework, we consider all possible dimension-six operators and determine the collider sensitivities as a function of dark matter mass. Our results show that the International Linear Collider can probe leptophilic dark matter at a high sensitivity level in the low-mass regime.
Article
Physics, Particles & Fields
Arnab Dasgupta, P. S. Bhupal Dev, Tao Han, Rojalin Padhan, Si Wang, Keping Xie
Summary: We study the phenomenology of leptophilic Z ' gauge bosons at future high-energy e(+)e(-) and mu(+)mu(-) colliders, as well as at gravitational wave observatories. We find that future e(+)e(-) and mu(+)mu(-) colliders with multi-TeV center-of-mass energies provide unprecedented sensitivity to heavy leptophilic Z ' bosons. Moreover, if these U(1) models are classically scale-invariant, the phase transition at the U(1) symmetry-breaking scale tends to be strongly first-order with ultra-supercooling, and leads to observable stochastic gravitational wave signatures. We also find that the future sensitivity of gravitational wave observatories can probe higher Z ' masses, complementing the collider experiments.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Astronomy & Astrophysics
Arnab Dasgupta, P. S. Bhupal Dev, Anish Ghoshal, Anupam Mazumdar
Summary: This study analyzes the classically scale-invariant B - L model in the context of resonant leptogenesis. The findings suggest that the parameter space of the model can be effectively probed through the detection of gravitational waves.
Article
Astronomy & Astrophysics
P. S. Bhupal Dev, Amarjit Soni, Fang Xu
Summary: The recent results from the Fermilab muon g-2 experiment and the hints of lepton flavor universality violation in B-meson decays provide strong evidence for new physics beyond the Standard Model. We propose a minimal R-parity violating supersymmetric scenario with light third-generation sfermions (RPV3) as a natural and well-motivated framework to explain all flavor anomalies. This scenario is consistent with both low-energy flavor constraints and high-energy collider searches. We also suggest specific collider signatures for the sbottom and sneutrino particles in this scenario.
Review
Physics, Particles & Fields
Oliver Fischer, Bruce Mellado, Stefan Antusch, Emanuele Bagnaschi, Shankha Banerjee, Geoff Beck, Benedetta Belfatto, Matthew Bellis, Zurab Berezhiani, Monika Blanke, Bernat Capdevila, Kingman Cheung, Andreas Crivellin, Nishita Desai, Bhupal Dev, Rohini Godbole, Tao Han, Philip Harris, Martin Hoferichter, Matthew Kirk, Suchita Kulkarni, Clemens Lange, Kati Lassila-Perini, Zhen Liu, Farvah Mahmoudi, Claudio Andrea Manzari, David Marzocca, Biswarup Mukhopadhyaya, Antonio Pich, Xifeng Ruan, Luc Schnell, Jesse Thaler, Susanne Westhoff
Summary: Particle physics is at a crossroads, as the completion of the Standard Model and the observation of anomalies beyond the model offer both opportunities and challenges for future research. Systemic deficiencies in experiments and search strategies may hinder the discovery of beyond the Standard Model physics, but new search strategies utilizing CERN open data can help uncover hidden signatures. Access to open data is crucial for fully exploiting the potential of the Large Hadron Collider (LHC).
EUROPEAN PHYSICAL JOURNAL C
(2022)
Article
Astronomy & Astrophysics
Arindam Das, P. S. Bhupal Dev, Yutaka Hosotani, Sanjoy Mandal
Summary: This article discusses the minimal U(1)(X) extension of the Standard Model, where the coupling of the new neutral gauge boson (Z') with the SM fermions is determined by the U(1)(X) charges of the new scalar fields. The study finds that future e(-)e(+) colliders can be used to probe multi-TeV Z' bosons through observables such as angular distributions, forward-backward (AFB), left-right (ALB), and left-right forward-backward (ALR-FB) asymmetries.
Article
Astronomy & Astrophysics
Ingolf Bischer, Werner Rodejohann, P. S. Bhupal Dev, Xun-Jie Xu, Yongchao Zhang
Summary: The P2 experiment aims to study leptoquarks through high-precision measurements of the parity-violating asymmetry in electron-proton and electron-C-12 scatterings. The experiment is sensitive to operators in the Standard Model effective field theory and leptoquark parameters, and can test energy scales up to 15 TeV. Additionally, the experiment can resolve degeneracies of different operators and address potential tensions between theoretical and experimental determinations of the weak charge of Cs-133.
Review
Physics, Nuclear
K. S. Babu, P. S. Bhupal Dev, Sudip Jana
Summary: This study explores the detection prospects of relatively light charged scalars in neutrino observatories, finding that these scalar mediators can produce resonance features in the ultrahigh energy neutrino event spectrum and contribute to observable nonstandard neutrino interactions.
INTERNATIONAL JOURNAL OF MODERN PHYSICS A
(2022)