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)
Article
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
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)
Article
Physics, Particles & Fields
Iason Baldes, Yann Gouttenoire, Filippo Sala, Geraldine Servant
Summary: The study suggests that dark matter may be a composite state of a confining sector with an approximate scale symmetry, with interactions mediated by a pseudo-Goldstone boson. Supercooling of the confining phase transition in the early universe allows for dark matter masses up to 10^6 TeV. The precise parameter space compatible with all experimental constraints in this scenario can be tested partly by telescopes and entirely by gravitational waves.
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
Biology
Raimund Burger, Gerardo Chowell, Leidy Yissedt Lara-Diaz
Summary: Phenomenological growth models provide a framework for characterizing epidemic trajectories, estimating key transmission parameters, gaining insight into various transmission pathways, and offering long-term and short-term forecasts. Differences in the dynamics between different models can explain the ability of certain models to provide a better fit to data than others.
MATHEMATICAL BIOSCIENCES
(2021)
Article
Physics, Particles & Fields
Marzia Bordone, Claudia Cornella, Gino Isidori, Matthias Koenig
Summary: This study examines the precision testing of mu/e universality in B -> pi l(+) l(-) decays, showing that the ratio between muonic and electronic decay widths can be accurately predicted in a wide range of the dilepton invariant mass spectrum within and beyond the Standard Model. Numerical expressions are provided to extract precise information on short-distance dynamics in case of any deviation from universality in the observed data.
EUROPEAN PHYSICAL JOURNAL C
(2021)
Article
Physics, Particles & Fields
Anja Beck, Meril Reboud, Danny van Dyk
Summary: Studying the accurate transfer of information from low-energy measurements to high-energy BSM models is vital for investigating potential BSM effects at the precision frontier. In this paper, we propose the use of normalising flows to construct likelihood functions that facilitate this transfer. By constructing likelihood functions in this manner, we can generate additional samples and perform a straightforward goodness-of-fit test using a chi(2) test statistic.
EUROPEAN PHYSICAL JOURNAL C
(2023)
Article
Astronomy & Astrophysics
A. Doff
Summary: The possibility that the Higgs boson is a composite dilaton is discussed in this paper, and evidence supporting this hypothesis is provided by verifying the behavior of the potential function. This is of great significance for understanding the nature of the Higgs boson and advancing the field of particle physics.
Article
Pharmacology & Pharmacy
Snjezana Cuzic, Maja Antolic, Anja Ognjenovic, Darija Stupin-Polancec, Adriana Petrinic Grba, Boska Hrvacic, Miroslava Dominis Kramaric, Sanja Musladin, Lidija Pozgaj, Ivo Zlatar, Denis Polancec, Gorana Aralica, Marko Banic, Marija Urek, Brankica Mijandrusic Sincic, Aleksandar Cubranic, Ines Glojnaric, Martina Bosnar, Vesna Erakovic Haber
Summary: This study explored the expression of claudins in human disease and two different animal models of IBD. The diverse alterations in claudin expression by epithelial and inflammatory cells were recorded in IBD and both animal models. The results suggest that claudins are not exclusively expressed by epithelial cells, and changes in claudin mRNA levels should be interpreted in the context of overall tissue alterations.
FRONTIERS IN PHARMACOLOGY
(2021)
Article
Physics, Particles & Fields
Daniel Elander, Michele Frigerio, Marc Knecht, Jean-Loic Kneur
Summary: This study focuses on strongly-coupled gauge theories with mass gap in the infrared and considers a large number of fermion flavours for ultraviolet completion in composite Higgs scenario. By using holographic approach, new models are introduced to incorporate the backreaction of flavour on geometry. The mass spectrum of composite bosonic states is computed and its dependence on symmetry-breaking operators and number of flavours is analyzed, with a critical survey on regions with light dilaton. Validity of holographic approach is carefully assessed and compared with lattice simulations and Nambu-Jona-Lasinio model.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
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
Polymer Science
Xiaochang Duan, Hongwei Yuan, Wei Tang, Jingjing He, Xuefei Guan
Summary: This study presents a unified phenomenological creep model for predicting the creep behavior in polymer-bonded composite materials under sustained compressive stresses. Through creep testing and a rational function-based creep rate equation, a unified model is established and validated using a rupture time prediction model for performance comparison.
Article
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
A. Bharucha, G. Cacciapaglia, A. Deandrea, N. Gaur, D. Harada, F. Mahmoudi, K. Sridhar
Summary: The next generation electron-positron colliders are designed for precision studies of the Standard Model and its extensions, particularly focusing on the Higgs sector. By studying Higgs pair production through photon collisions, potential discoveries of composite Higgs models can be made. Significant deviations from the Standard Model predictions are present in a general class of composite Higgs models, primarily due to the new quartic coupling of the Higgs to tops and the presence of a light scalar resonance.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Multidisciplinary
Brando Bellazzini, Alberto Mariotti, Diego Redigolo, Filippo Sala, Javi Serra
PHYSICAL REVIEW LETTERS
(2017)
Article
Physics, Particles & Fields
Brando Bellazzini, Francesco Riva, Javi Serra, Francesco Sgarlata
JOURNAL OF HIGH ENERGY PHYSICS
(2017)
Article
Physics, Multidisciplinary
Brando Bellazzini, Francesco Riva, Javi Serra, Francesco Sgarlata
PHYSICAL REVIEW LETTERS
(2018)
Article
Physics, Particles & Fields
Michele Frigerio, Marco Nardecchia, Javi Serra, Luca Vecchi
JOURNAL OF HIGH ENERGY PHYSICS
(2018)
Article
Physics, Particles & Fields
Javi Serra, Stefan Stelzl, Riccardo Torre, Andreas Weiler
JOURNAL OF HIGH ENERGY PHYSICS
(2019)
Article
Physics, Particles & Fields
Brando Bellazzini, Francesco Riva, Javi Serra, Francesco Sgarlata
JOURNAL OF HIGH ENERGY PHYSICS
(2019)
Article
Physics, Multidisciplinary
Brando Bellazzini, Matthew Lewandowski, Javi Serra
PHYSICAL REVIEW LETTERS
(2019)
Article
Physics, Particles & Fields
Maximilian Ruhdorfer, Javi Serra, Andreas Weiler
JOURNAL OF HIGH ENERGY PHYSICS
(2020)
Article
Physics, Particles & Fields
Reuven Balkin, Javi Serra, Konstantin Springmann, Andreas Weiler
JOURNAL OF HIGH ENERGY PHYSICS
(2020)
Article
Physics, Particles & Fields
Giovanni Banelli, Ennio Salvioni, Javi Serra, Tobias Theil, Andreas Weiler
Summary: This study demonstrates the potential of future proton-proton and electron-positron colliders to directly and indirectly test non-standard interactions involving top quarks. It also shows the impact on the parameter space of composite Higgs models and provides a consistent description of mild LHC excesses in multilepton plus jets final states within the framework of effective field theory.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Pietro Baratella, Dominik Haslehner, Maximilian Ruhdorfer, Javi Serra, Andreas Weiler
Summary: In this study, we investigate the renormalization group of generic effective field theories with gravity, using the on-shell amplitude approach. We introduce a modified helicity to simplify the extraction of anomalous dimensions and apply it to explain old and discover new non-renormalization theorems for theories involving gravitons. Furthermore, we provide complete results for the one-loop gravitational renormalization of a generic minimally coupled gauge theory and the renormalization of dimension-six operators with at least one graviton, up to four external particles.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Reuven Balkin, Javi Serra, Konstantin Springmann, Stefan Stelzl, Andreas Weiler
Summary: This study investigates the effects of finite density on the stability of metastable vacua in relaxion models. By analyzing nucleation seeds from stars and rotating neutron stars, we derive the conditions for the formation and runaway of relaxion bubbles with lower energy minima than in vacuum. The resulting late-time phase transition in the universe provides new constraints on the parameter space of relaxion models.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Francesco Serra, Javi Serra, Enrico Trincherini, Leonardo G. Trombetta
Summary: Causality constraints on scalar-tensor theories involving black holes suggest that within the effective field theory regime, the unobservability of time advancement necessitates a cutoff length approximately the size of the inverse Schwarzschild radius of the black holes. For astrophysical black holes detectable by current gravitational wave detectors, this implies a cutoff length on the order of kilometers. Additionally, implications for gravitational wave science are discussed by exploring potential higher-dimensional operators associated with the scale of UV completion.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Multidisciplinary
Reuven Balkin, Javi Serra, Konstantin Springmann, Stefan Stelzl, Andreas Weiler
Summary: In this study, we investigate the influence of matter density effects on theories with a false ground state. Large and dense systems, such as stars, can disrupt a metastable minimum and facilitate the formation of bubbles of the true minimum. We derive the conditions for the formation of these bubbles and their confinement or escape to infinity. The latter case leads to a phase transition in the universe during star formation. We explore the phenomenological consequences of such seeded phase transitions.
Article
Astronomy & Astrophysics
Javi Serra, Riccardo Torre