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 …

[HTML][HTML] Dark sector searches with the CMS experiment

CMS collaboration - Physics Reports, 2024 - Elsevier
Astrophysical observations provide compelling evidence for gravitationally interacting dark
matter in the universe that cannot be explained by the standard model of particle physics …

Measurement of the Pion Form Factor with CMD-3 Detector and its Implication to the Hadronic Contribution to Muon ()

FV Ignatov, RR Akhmetshin, AN Amirkhanov… - Physical Review Letters, 2024 - APS
The cross section of the process e+ e-→ π+ π-has been measured in the center-of-mass
energy range from 0.32 to 1.2 GeV with the CMD-3 detector at the electron-positron collider …

Detailed report on the measurement of the positive muon anomalous magnetic moment to 0.20 ppm

DP Aguillard, T Albahri, D Allspach, A Anisenkov… - Physical Review D, 2024 - APS
We present details on a new measurement of the muon magnetic anomaly, a μ=(g μ-2)/2.
The result is based on positive muon data taken at Fermilab's Muon Campus during the …

Tensions in measurements: the new landscape of data-driven hadronic vacuum polarization predictions for the muon

M Davier, A Hoecker, AM Lutz, B Malaescu… - The European Physical …, 2024 - Springer
The situation of the experimental data used in the dispersive evaluation of the hadronic
vacuum polarization contribution to the anomalous magnetic moment of the muon is …

, MiniBooNE and muon anomalies from a dark sector

A Datta, D Marfatia, L Mukherjee - Physical Review D, 2024 - APS
Belle II has reported the first evidence for B+→ K+ ν ν¯ with a branching ratio 2.7 σ higher
than the standard model expectation. We explain this and the MiniBooNE and muon …

First results in the search for dark sectors at NA64 with the CERN SPS high energy muon beam

YM Andreev, D Banerjee, B Banto Oberhauser… - Physical Review Letters, 2024 - APS
We report the first search for dark sectors performed at the NA64 experiment employing a
high energy muon beam and a missing energy-momentum technique. Muons from the M2 …

An optimized basis for hadronic light-by-light scattering

M Hoferichter, P Stoffer, M Zillinger - Journal of High Energy Physics, 2024 - Springer
A bstract We present a new basis for the hadronic light-by-light (HLbL) tensor that is
optimized for the evaluation of narrow-resonance contributions to HLbL scattering in the …

Scotogenic origin of , -mass anomaly and 95 GeV excess

D Borah, S Mahapatra, PK Paul, N Sahu - Physical Review D, 2024 - APS
We study a scotogenic extension of the minimal gauged L μ-L τ model including three right-
handed singlet fermions and a scalar doublet all odd under an in-built Z 2 symmetry to …

High precision calculation of the hadronic vacuum polarisation contribution to the muon anomaly

A Boccaletti, S Borsanyi, M Davier, Z Fodor… - arxiv preprint arxiv …, 2024 - arxiv.org
We present a new lattice QCD calculation of the leading order hadronic vacuum polarization
contribution to the muon anomalous magnetic moment $ a_\mu $. We reduce uncertainties …