Article
Astronomy & Astrophysics
P. Ko, Yong Tang
Summary: The XENON1T experiment has detected a significant excess in electronic recoil events, which may be explained by a new physics model involving dark matter X undergoing semiannihilation and a subsequent decay of a dark gauge boson V-μ producing a dark fermion ψ. This model is consistent with the observed excess and provides testable predictions for future searches for nucleus recoil.
Article
Astronomy & Astrophysics
Bastian Diaz Saez, Karim Ghorbani
Summary: We explore a class of simplified extensions to the Standard Model, which includes a complex singlet scalar and a vector-like lepton as a mediator, both charged under a new Z3 symmetry. The model, in its simplest form, couples only to right-handed electrons and can accommodate the correct dark matter relic abundance while evading strong constraints from perturbativity, collider, and dark matter searches. Additionally, the model can naturally enhance positron fluxes by several orders of magnitude, leading to a box-shaped spectra. The quantum charge assignments of the new fields offer various phenomenological possibilities.
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
(2023)
Article
Astronomy & Astrophysics
Debasish Borah, Ernest Ma, Dibyendu Nanda
Summary: This article postulates that the dark sector is invariant under an SU(2) gauge symmetry, broken by a Higgs quadruplet to a conserved residual Z3 x Z2 symmetry. The study focuses on the resulting phenomenology of dark matter.
Article
Astronomy & Astrophysics
Parsa Ghorbani
Summary: In the presence of a real singlet scalar field with Z(2) symmetry in addition to the Higgs field in the Standard Model, the study investigates possible one-step and two-step electroweak phase transitions, providing necessary conditions for a first or second-order phase transition in the high-temperature limit. Among all scenarios, only the two-step phase transition (0, 0) -> (0, w) -> (v, 0) can be of first-order type. The conditions for EWPT are compared with dark matter and collider constraints, showing potential accessibility in future colliders for certain scenarios.
PHYSICS OF THE DARK UNIVERSE
(2021)
Article
Astronomy & Astrophysics
Gil Paz, Alexey A. Petrov, Michele Tammaro, Jure Zupan
Summary: This study suggests that a nonrelativistic approximately 2 GeV dark matter interacting with visible matter through higher-dimensional Rayleigh operators may explain the excess of electron recoil events observed by the XENON1T Collaboration. The study also indicates that one-loop induced spin-independent scattering in dark matter may soon lead to a confirmation signal or exclude regions of viable parameter space for the Rayleigh DM model.
Article
Astronomy & Astrophysics
XinXin Qi, Hao Sun
Summary: Here we study a simple complex scalar singlet dark matter model with Z3 symmetry based on the type-II seesaw mechanism. We use the model to explain the excess of electron-positron flux measured by the AMS-02, DAMPE, and Fermi-LAT Collaborations, which is caused by the decay of the triplets produced from dark matter annihilations in the Galactic halo. By considering the nondegenerate case, in which the mass of dark matter is larger than that of the triplets, we deliberately alleviate the leptophilic properties of the dark matter and enhance the semiannihilation effects. With the restriction of Z3 symmetry, we find strong constraints on the dark matter cubic terms and the couplings between dark matter and the Higgs boson, leading to a semiannihilation cross-section fraction less than 11% when the dark matter mass is given at 2 TeV.
Article
Astronomy & Astrophysics
Yeong Gyun Kim, Kang Young Lee, Jungil Lee, Soo-hyeon Nam
Summary: In this paper, we discuss the vacuum structure and vacuum stability in classically scale-invariant renormalizable models. This study provides important clues for direct detection of dark matter, and explores the collider signatures and future discovery potentials of the new scalars.
Article
Physics, Particles & Fields
Priyotosh Bandyopadhyay, Shilpa Jangid, Anirban Karan
Summary: In this study, we investigate the constraints on the leptoquark Yukawa couplings and the Higgs-leptoquark quartic couplings for different types of leptoquarks. The results show that the leptoquark Yukawa couplings have an upper bound to respect the stability of the Higgs vacuum at the Planck scale, while the Higgs-leptoquark quartic couplings have severe constraints to protect the perturbativity at the Planck scale.
EUROPEAN PHYSICAL JOURNAL C
(2022)
Article
Astronomy & Astrophysics
Nabarun Chakrabarty, Rishav Roshan, Arunansu Sil
Summary: The proposal introduces a two-component scalar dark matter scenario involving an additional scalar doublet and a Y = 0 scalar triplet, highlighting the interconversion between the two dark matter components, explaining the observed relic abundance, and stabilizing the electroweak vacuum.
Article
Astronomy & Astrophysics
Amit Dutta Banik, Rishav Roshan, Arunansu Sil
Summary: In this proposed dark matter setup, a two component system consisting of a singlet and a hyperchargeless triplet scalars is introduced, with the ability for interconversion allowing for lower mass dark matter candidates. The model also ensures the absolute stability of the electroweak vacuum up to the Planck scale, thanks to the coupling with the scalar dark matter components.
Article
Astronomy & Astrophysics
Haijing Zhou, Junjie Cao, Jingwei Lian, Di Zhang
Summary: This study investigates the properties of Singlino-dominated dark matter in the Z(3) next-to-minimal supersymmetric Standard Model, which exhibits superweak interactions with nucleons. The measured dark matter abundance is shown to depend on the singlet-doublet Higgs coupling parameter in the theoretical parameters, while experimental detection results prefer a smaller coupling. The parameter space is explored using a likelihood function containing various observables, and it is demonstrated that dark matter can achieve the correct abundance through different processes, with the former providing larger Bayesian evidence.
Article
Astronomy & Astrophysics
Zohre Habibolahi, Karim Ghorbani, Parsa Ghorbani
Summary: This article introduces a model that extends the Standard Model with two additional real scalar particles, explaining the relic abundance of dark matter and solving the fine-tuning problem of the Higgs mass.
Article
Physics, Multidisciplinary
E. Aprile, K. Abe, S. Ahmed Maouloud, L. Althueser, B. Andrieu, E. Angelino, J. R. Angevaare, V. C. Antochi, D. Anton Martin, F. Arneodo, L. Baudis, A. L. Baxter, M. Bazyk, L. Bellagamba, R. Biondi, A. Bismark, E. J. Brookes, A. Brown, S. Bruenner, G. Bruno, R. Budnik, T. K. Bui, C. Cai, J. M. R. Cardoso, D. Cichon, A. P. Cimental Chavez, M. Clark, A. P. Colijn, J. Conrad, J. J. Cuenca-Garcia, J. P. Cussonneau, V. D'Andrea, M. P. Decowski, P. Di Gangi, S. Di Pede, S. Diglio, K. Eitel, A. Elykov, S. Farrell, A. D. Ferella, C. Ferrari, H. Fischer, M. Flierman, W. Fulgione, C. Fuselli, P. Gaemers, R. Gaior, A. Gallo Rosso, M. Galloway, F. Gao, R. Glade-Beucke, L. Grandi, J. Grigat, H. Guan, M. Guida, R. Hammann, A. Higuera, C. Hils, L. Hoetzsch, N. F. Hood, J. Howlett, M. Iacovacci, Y. Itow, J. Jakob, F. Joerg, A. Joy, N. Kato, M. Kara, P. Kavrigin, S. Kazama, M. G. Koltman, A. F. H. Landsman, R. F. Levinson, I. Li, S. Li, G. Liang, S. Lindemann, M. Lindner, K. Liu, J. Loizeau, F. Lombardi, J. Long, J. A. M. Lopes, Y. Ma, C. Macolino, J. Mahlstedt, A. Mancuso, L. Manenti, F. Marignetti, T. Marrodan Undagoitia, K. Martens, J. Masbou, D. Masson, E. Masson, S. Mastroianni, M. Messina, K. Miuchi, K. Mizukoshi, A. Molinario, S. Moriyama, K. Mora, Y. Mosbacher, M. Murra, J. Mueller, K. Ni, U. Oberlack, B. Paetsch, J. Palacio, Q. Pellegrini, R. Peres, C. Peters, J. Pienaar, M. Pierre, V. Pizzella, G. Plante, T. R. Pollmann, J. Qi, J. Qin, D. Ramirez Garcia, R. Singh, L. Sanchez, J. M. F. dos Santos, I. Sarnoff, G. Sartorelli, J. Schreiner, D. Schulte, P. Schulte, H. Schulze Eissing, M. Schumann, L. Scotto Lavina, M. Selvi, F. Semeria, P. Shagin, S. Shi, E. Shockley, M. Silva, H. Simgen, A. Takeda, P. l. Tan, A. Terliuk, D. Thers, F. Toschi, G. Trinchero, C. Tunnell, F. Toennies, K. Valerius, G. Volta, C. Weinheimer, M. Weiss, D. Wenz, C. Wittweg, T. Wolf, V. H. S. Wu, Y. Xing, D. Xu, Z. Xu, M. Yamashita, L. Yang, J. Ye, L. Yuan, G. Zavattini, M. Zhong, T. Zhu
Summary: Using data from the XENON1T experiment, a blind search for signals from heavy dark matter particles with a mass close to the Planck mass was conducted. The results provide strong constraints on spin-independent interactions and spin-dependent cross sections for these particles.
PHYSICAL REVIEW LETTERS
(2023)
Article
Astronomy & Astrophysics
E. Aprile, J. Aalbers, F. Agostini, M. Alfonsi, L. Althueser, F. D. Amaro, S. Andaloro, E. Angelino, J. R. Angevaare, V. C. Antochi, F. Arneodo, L. Baudis, B. Bauermeister, L. Bellagamba, M. L. Benabderrahmane, A. Brown, E. Brown, S. Bruenner, G. Bruno, R. Budnik, C. Capelli, J. M. R. Cardoso, D. Cichon, B. Cimmino, M. Clark, D. Coderre, A. P. Colijn, J. Conrad, J. Cuenca, J. P. Cussonneau, M. P. Decowski, A. Depoian, P. Di Gangi, A. Di Giovanni, R. Di Stefano, S. Diglio, A. Elykov, A. D. Ferella, W. Fulgione, P. Gaemers, R. Gaior, M. Galloway, F. Gao, L. Grandi, C. Hils, K. Hiraide, L. Hoetzsch, J. Howlett, M. Iacovacci, Y. Itow, F. Joerg, N. Kato, S. Kazama, M. Kobayashi, G. Koltman, A. Kopec, H. Landsman, R. F. Lang, L. Levinson, S. Liang, Q. Lin, S. Lindemann, M. Lindner, F. Lombardi, J. Long, J. A. M. Lopes, Y. Ma, C. Macolino, J. Mahlstedt, A. Mancuso, L. Manenti, A. Manfredini, F. Marignetti, T. Marrodan Undagoitia, K. Martens, J. Masbou, D. Masson, S. Mastroianni, M. Messina, K. Miuchi, K. Mizukoshi, A. Molinario, K. Mora, S. Moriyama, Y. Mosbacher, M. Murra, J. Naganoma, K. Ni, U. Oberlack, K. Odgers, J. Palacio, B. Pelssers, R. Peres, J. Pienaar, M. Pierre, V Pizzella, G. Plante, J. Qi, J. Qin, D. Ramirez Garcia, S. Reichard, A. Rocchetti, N. Rupp, J. M. F. dos Santos, G. Sartorelli, M. Scheibelhut, J. Schreiner, D. Schulte, H. Schulze Eiaing, M. Schumann, L. Scotto Lavina, M. Selvi, F. Semeria, P. Shagin, E. Shockley, M. Silva, H. Simgen, A. Takeda, C. Therreau, D. Thers, F. Toschi, G. Trinchero, C. Tunnell, K. Valerius, M. Vargas, G. Volta, Y. Wei, C. Weinheimer, M. Weiss, D. Wenz, C. Wittweg, T. Wolf, Z. Xu, M. Yamashita, J. Ye, G. Zavattini, Y. Zhang, T. Zhu, J. P. Zopounidis
Summary: In the XENON1T dark matter experiment, a search for the inelastic scattering of weakly interacting massive particles (WIMPs) off Xe-129 was conducted. Despite using an exposure of 0.83 tonne-years, no evidence of inelastic WIMP scattering was found with a significance of more than 2 sigma. Upper limits on the cross section of WIMP-nucleus interactions were set, excluding new parameter space for WIMPs heavier than 100 GeV/c².
Article
Astronomy & Astrophysics
Debajyoti Choudhury, Suvam Maharana, Vandana Sahdev, Divya Sachdeva
Summary: An economical scenario involving three additional scalar fields beyond the Standard Model is proposed to explain the muon anomalous magnetic moment, the relic abundance of dark matter, and the XENON1T excess, all through the inelastic down-scattering of the dark scalar.
Article
Physics, Particles & Fields
Peter Athron, Csaba Balazs, Tomas E. Gonzalo, Douglas Jacob, Farvah Mahmoudi, Cristian Sierra
Summary: In this study, a likelihood analysis of the general two Higgs doublet model was presented using currently measured flavour observables. The results showed that the model explains some rare decays of B mesons, but fails to accommodate certain specific observables. Additionally, some of the model's predictions are beyond the reach of future experiments, while others are within the sensitivity range.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Peter Athron, Csaba Balazs, Adriano Cherchiglia, Douglas Jacob, Dominik Stoeckinger, Hyejung Stoeckinger-Kim, Alexander Voigt
Summary: We have presented an extension of the GM2Calc software that calculates the muon anomalous magnetic moment in the Two-Higgs Doublet Model. The new version implements a state-of-the-art two-loop calculation for various variants of the model and provides interfaces in different programming languages for easy integration with other codes.
EUROPEAN PHYSICAL JOURNAL C
(2022)
Article
Astronomy & Astrophysics
Hannah Banks, Siyam Ansari, Aaron C. Vincent, Pat Scott
Summary: The isothermal method performs better than the established method based on local thermal equilibrium in capturing the heat transport of asymmetric dark matter (ADM) in stars. It has a universal rescaling function that improves its performance across various models. Recommendations are provided for the parameterization of DM heat transport in stellar evolution models based on simulation results.
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
(2022)
Review
Physics, Multidisciplinary
Shehu S. AbdusSalam, Fruzsina J. Agocs, Benjamin C. Allanach, Peter Athron, Csaba Balazs, Emanuele Bagnaschi, Philip Bechtle, Oliver Buchmueller, Ankit Beniwal, Jihyun Bhom, Sanjay Bloor, Torsten Bringmann, Andy Buckley, Anja Butter, Jose Eliel Camargo-Molina, Marcin Chrzaszcz, Jan Conrad, Jonathan M. Cornell, Matthias Danninger, Jorge de Blas, Albert De Roeck, Klaus Desch, Matthew Dolan, Herbert Dreiner, Otto Eberhardt, John Ellis, Ben Farmer, Marco Fedele, Henning Flaecher, Andrew Fowlie, Tomas E. Gonzalo, Philip Grace, Matthias Hamer, Will Handley, Julia Harz, Sven Heinemeyer, Sebastian Hoof, Selim Hotinli, Paul Jackson, Felix Kahlhoefer, Kamila Kowalska, Michael Kraemer, Anders Kvellestad, Miriam Lucio Martinez, Farvah Mahmoudi, Diego Martinez Santos, Gregory D. Martinez, Satoshi Mishima, Keith Olive, Ayan Paul, Markus Tobias Prim, Werner Porod, Are Raklev, Janina J. Renk, Christopher Rogan, Leszek Roszkowski, Roberto Ruiz de Austri, Kazuki Sakurai, Andre Scaffidi, Pat Scott, Enrico Maria Sessolo, Tim Stefaniak, Patrick Stoecker, Wei Su, Sebastian Trojanowski, Roberto Trotta, Yue-Lin Sming Tsai, Jeriek Van den Abeele, Mauro Valli, Aaron C. Vincent, Georg Weiglein, Martin White, Peter Wienemann, Lei Wu, Yang Zhang
Summary: This article discusses the unique challenges that physical theories dependent on many parameters or tested against data from multiple experiments pose to statistical inference. The authors provide clear guidance and recommendations for statistically sound inference methods, as well as readily-available software tools and standards. Examples provided in the article can be reproduced using publicly available code on Zenodo.
REPORTS ON PROGRESS IN PHYSICS
(2022)
Article
Physics, Particles & Fields
Joachim Brod, Jonathan M. Cornell, Dimitrios Skodras, Emmanuel Stamou
Summary: In this study, the CP-violating contributions to Higgs-fermion couplings are investigated within the framework of SMEFT. The leading contributions to fermionic electric dipole moments (EDMs) from the relevant operators are presented. Constraints on the SMEFT Wilson coefficients are obtained by combining LHC data with experimental bounds on the electron, neutron, and mercury EDMs. For the first time, a combined fit to LHC and EDM data is performed, allowing the presence of CP-violating contributions from several fermion species simultaneously, revealing non-trivial correlations between EDM and LHC constraints.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Computer Science, Interdisciplinary Applications
Peter Athron, Adam Buechner, Dylan Harries, Wojciech Kotlarski, Dominik Stockinger, Alexander Voigt
Summary: FlexibleDecay is a tool for calculating decays of scalars in a broad class of BSM models, with a focus on high precision in Higgs boson decays. It accounts for higher order effects and works in a modified MS scheme that allows for connection to high scale tests and other observable calculations. It is an extension of FlexibleSUSY and does not require additional configuration.
COMPUTER PHYSICS COMMUNICATIONS
(2023)
Article
Astronomy & Astrophysics
Csaba Balazs, Sanjay Bloor, Tomas E. Gonzalo, Will Handley, Sebastian Hoof, Felix Kahlhoefer, Marie Lecroq, David J. E. Marsh, Janina J. Renk, Pat Scott, Patrick Stoecker
Summary: In this study, a global analysis of the parameter space for axion-like particles (ALPs) is performed, leading to the lower bound of ALP mass. It is proposed that future observations of CMB spectral distortions can significantly improve the precision of this bound.
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
(2022)
Article
Physics, Particles & Fields
Peter Athron, Csaba Balazs, Andrew Fowlie, Lachlan Morris, Graham White, Yang Zhang
Summary: We investigate the arbitrary and uncertain nature of perturbative calculations of the electroweak phase transition, considering gauge, renormalisation scale, and scheme dependence, as well as treatments of the Goldstone catastrophe and daisy diagrams. Through our study of the Standard Model extended by a Z(2) symmetric real scalar singlet, we find that different renormalisation schemes and treatments of the Goldstone catastrophe and daisy diagrams typically have minor effects on the predictions for the critical temperature and strength of the phase transition. However, the gauge and renormalisation scale dependence can be significant and may impact the existence of the phase transition.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Astronomy & Astrophysics
Peter Athron, Csaba Balazs, Lachlan Morris
Summary: We investigate rarely explored details of supercooled cosmological first-order phase transitions at the electroweak scale, which may lead to strong gravitational wave signals or explain the cosmic baryon asymmetry. We argue that the nucleation temperature is not fundamental or essential in phase transition analysis and provide empirical bounds on the bubble wall velocity for the completion of a transition. We also propose the use of percolation temperature as a reference temperature for gravitational wave production.
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
(2023)
Article
Multidisciplinary Sciences
Peter Athron, Andrew Fowlie, Chih-Ting Lu, Lei Wu, Yongcheng Wu, Bin Zhu
Summary: In this article, the authors demonstrate that the anomalies in the measurements of the W mass and the muon g - 2 are unlikely to have a common origin, but a model involving leptoquarks might explain both anomalies. The electroweak fits show that including the g - 2 measurement worsens the tension with the CDF measurement, and conversely, adjustments that alleviate the CDF tension worsen the g - 2 tension beyond 5 sigma. Therefore, regardless of the size of the hadronic contributions in the Standard Model, new physics explanations are inevitable if we adopt the CDF W mass measurement.
NATURE COMMUNICATIONS
(2023)
Article
Physics, Particles & Fields
Viktor Ananyev, Csaba Balazs, Ankit Beniwal, Lasse Lorentz Braseth, Andy Buckley, Jonathan Butterworth, Christopher Chang, Matthias Danninger, Andrew Fowlie, Tomas E. Gonzalo, Anders Kvellestad, Farvah Mahmoudi, Gregory D. Martinez, Markus T. Prim, Tomasz Procter, Are Raklev, Pat Scott, Patrick Stoecker, Jeriek Van den Abeele, Martin White, Yang Zhang
Summary: Using the GAMBIT global fitting framework, this study constrains the MSSM with an eV-scale gravitino and six electroweakinos as the only other light new states. The (G)~EWMSSM model presents diverse collider phenomenology and characteristic signal events with multiple Standard Model bosons and missing energy. Viable parameter regions consistent with collider searches and measurements are found, including scenarios with light Higgsino-dominated electroweakinos.
EUROPEAN PHYSICAL JOURNAL C
(2023)
Article
Physics, Particles & Fields
Christopher Chang, Pat Scott, Tomas E. Gonzalo, Felix Kahlhoefer, Anders Kvellestad, Martin White
Summary: Simplified models are a useful tool for studying the effects of a small number of new particles on experimental observables and their interplay, without the need for a full underlying theory. In this study, global fits of simplified dark matter models were performed using GAMBIT, incorporating up-to-date likelihoods from indirect detection, direct detection, and collider searches. Various models with scalar or fermionic dark matter candidates coupling to quarks through an s-channel vector mediator were investigated, with significant parameter space surviving for each model.
EUROPEAN PHYSICAL JOURNAL C
(2023)
Article
Astronomy & Astrophysics
Peter Athron, Markus Bach, Douglas H. J. Jacob, Wojciech Kotlarski, Dominik Stoeckinger, Alexander Voigt
Summary: This article presents an updated calculation of the W boson pole mass in models beyond the standard model using FlexibleSUSY. The calculation exhibits a decoupling behavior and provides precise predictions for the W pole mass up to large new physics scales. The calculation is applied to various standard model extensions, including MRSSM, which demonstrates its compatibility with large corrections to fit the recent 2022 CDF measurement of the W boson mass.
Article
Astronomy & Astrophysics
Peter Athron, Csaba Balazs, Andrew Fowlie, Huifang Lv, Wei Su, Lei Wu, Jin Min Yang, Yang Zhang
Summary: In this work, the impact of electroweak and Higgs precision measurements at future electron positron colliders on various supersymmetric models is studied. The results show that future precision measurements can further test the currently allowed parameter space of these models and potentially distinguish different dark matter annihilation mechanisms.
