Anomalies in particle physics and their implications for physics beyond the standard model

A Crivellin, B Mellado - Nature Reviews Physics, 2024 - nature.com
The standard model (SM) of particle physics is the mathematical description of the
fundamental constituents and interactions of matter. Its last missing particle, the Higgs …

Review of semileptonic B anomalies

B Capdevila, A Crivellin, J Matias - The European Physical Journal Special …, 2023 - Springer
We review the current status and implications of the anomalies (ie deviations from the
Standard Model predictions) in semi-leptonic B meson decays, both in the charged and in …

[HTML][HTML] Understanding the first measurement of B (B→ Kνν)

L Allwicher, D Bečirević, G Piazza, S Rosauro-Alcaraz… - Physics Letters B, 2024 - Elsevier
Recently, Belle II reported on the first measurement of B (B±→ K±ν ν¯) which appears to be
almost 3σ larger than predicted in the Standard Model. We point out the important …

Plan B: new Z′ models for b→ sℓ+ ℓ− anomalies

B Allanach, A Mullin - Journal of High Energy Physics, 2023 - Springer
A bstract Measurements of b→ sμ+ μ− transitions indicate that there may be a new physics
field coupling to di-muon pairs associated with the b to s flavour transition. Including the …

Diquark explanation of

A Crivellin, M Kirk - Physical Review D, 2023 - APS
The discrepancies between b→ s ℓ+ ℓ− data and the corresponding Standard Model
predictions point to the existence of new physics with a significance at the 5 σ level. While …

Explanation of the hints for a 95 GeV Higgs boson within a 2-Higgs doublet model

A Belyaev, R Benbrik, M Boukidi, M Chakraborti… - Journal of High Energy …, 2024 - Springer
A bstract We suggest an explanation for and explore the consequences of the excess
around 95 GeV in the di-photon and di-tau invariant mass distributions recently reported by …

[HTML][HTML] Gauge SU (2) f flavour transfers

L Darmé, A Deandrea, F Mahmoudi - Journal of High Energy Physics, 2024 - Springer
A bstract We introduce the idea of flavour transfer from a non-abelian horizontal SU (2) f
flavour gauge group embedded in the Standard Model flavour structure. The new flavour …

Precise tests of the axion coupling to tops

AV Phan, S Westhoff - Journal of High Energy Physics, 2024 - Springer
A bstract We present an in-depth analysis of axions and axion-like particles in top-pair
production at the LHC. Our main goal is to probe the axion coupling to top quarks at high …

New physics in B q 0–mixing: present challenges, prospects, and implications for

K De Bruyn, R Fleischer, E Malami… - Journal of Physics G …, 2023 - iopscience.iop.org
The phenomenon of B 0 q–${\bar {B}} _ {q}^{0} $ mixing (q= d, s) provides a sensitive probe
for physics beyond the Standard Model (SM). We explore the corresponding space for New …

Searching for in the 2HDM type-I at the LHC

A Arhrib, S Moretti, S Semlali… - Physical Review D, 2024 - APS
Unlike other realizations of the 2-Higgs doublet model (2HDM), the so-called type-I allows
for a very light Higgs boson spectrum. Specifically, herein, the heaviest of the two CP-even …