triplet scalar as the origin of the 95 GeV excess?

S Ashanujjaman, S Banik, G Coloretti, A Crivellin… - Physical Review D, 2023 - APS
We explore the possibility that an SU (2) L triplet scalar with hypercharge Y= 0 is the origin of
the 95 GeV diphoton excess. For a small mixing angle with the Standard Model Higgs, its …

Gravitational wave signatures of a PBH-generated baryon-dark matter coincidence

B Barman, D Borah, SJ Das, R Roshan - Physical Review D, 2023 - APS
We propose a new way of probing the nonthermal origin of baryon asymmetry of the
Universe (BAU) and dark matter (DM) from evaporating primordial black holes (PBHs) via …

Combined explanation of LHC multilepton, diphoton, and top-quark excesses

G Coloretti, A Crivellin, B Mellado - Physical Review D, 2024 - APS
In this article, we propose the Δ 2 HDM S as a combined explanation of several excesses
and anomalies observed at the LHC. Especially, tt¯ differential distributions point towards …

Monopoles, strings and gravitational waves in non-minimal inflation

R Maji, Q Shafi - Journal of Cosmology and Astroparticle Physics, 2023 - iopscience.iop.org
We discuss how in SO (10) grand unification an observable number density of topologically
stable intermediate mass (∼ 10 14 GeV) monopoles survive inflation driven by a Coleman …

Imprint of PBH domination on gravitational waves generated by cosmic strings

D Borah, SJ Das, R Roshan, R Samanta - Physical Review D, 2023 - APS
We study the effect of an ultralight primordial black hole (PBH) dominated phase on the
gravitational wave (GW) spectrum generated by a cosmic string (CS) network formed as a …

Using gravitational waves to see the first second of the Universe

R Roshan, G White - arXiv preprint arXiv:2401.04388, 2024 - arxiv.org
Gravitational waves are a unique probe of the early Universe, as the Universe is transparent
to gravitational radiation right back to the beginning. In this article, we summarise detection …

[HTML][HTML] Tripling down on the W boson mass

H Bahl, WH Chiu, C Gao, LT Wang… - The European Physical …, 2022 - Springer
A new precision measurement of the W boson mass has been announced by the CDF
collaboration, which strongly deviates from the Standard Model prediction. In this article, we …

Minimal model for the -boson mass, , , and quark-mixing-matrix unitarity

A Crivellin, M Kirk, A Thapa - Physical Review D, 2023 - APS
The SU (2) L triplet scalar with hypercharge Y= 0 predicts a positive definite shift in the W
mass, with respect to the Standard Model prediction, if it acquires a vacuum expectation …

Muon and -mass anomalies explained and the electroweak vacuum stabilized by extending the minimal type-II seesaw model

N Chakrabarty - Physical Review D, 2023 - APS
The recent precise measurement of the W-mass by the CDF II Collaboration could be
indicative of new physics beyond the Standard Model. On the other hand, a resolution of the …

mass in a model with vectorlike leptons and

J Kawamura, S Raby - Physical Review D, 2022 - APS
We study the effects of vectorlike leptons on the W-boson mass in a model with a vectorlike
U (1)′ gauge symmetry. This model provides simultaneous explanations for the recent …