Results 21 to 30 of about 25,349 (213)
Anthropic tuning of the weak scale and of m{sub u}/m{sub d} in two-Higgs-doublet models [PDF]
, 2007 It is shown that, in a model in which up-type and down-type fermions acquire mass from different Higgs doublets, the anthropic tuning of the Higgs mass parameters can explain the fact that the observed masses of the d and u quarks are nearly the same ...
S. Barr, Almas Khan
semanticscholar +1 more source
Radiative neutrino masses and the Cohen-Kaplan-Nelson bound
Journal of High Energy Physics, 2023 Recently, an increasing interest in UV/IR mixing phenomena has drawn attention to the range of validity of standard quantum field theory. Here we explore the consequences of such a limited range of validity in the context of radiative models for neutrino
Patrick Adolf +2 more
doaj +1 more source
Journal of High Energy Physics, 2022 In a simple extension of the standard model (SM), a pair of vector like lepton doublets (L 1 and L 2) and a SU(2) L scalar doublet (η) have been introduced to help in accommodating the discrepancy in determination of the anomalous magnetic moments of the
Bibhabasu De +3 more
doaj +1 more source
Uncovering doubly charged scalars with dominant three-body decays using machine learning
Journal of High Energy Physics, 2023 We propose a deep learning-based search strategy for pair production of doubly charged scalars undergoing three-body decays to W + t b ¯ $$ {W}^{+}t\overline{b} $$ in the same-sign lepton plus multi-jet final state. This process is motivated by composite
Thomas Flacke +6 more
doaj +1 more source
Establishing the Isolated Standard Model [PDF]
, 2017 The goal of this article is to initiate a discussion on what it takes to claim "there is no new physics at the weak scale," namely that the Standard Model (SM) is "isolated." The lack of discovery of beyond the SM (BSM) physics suggests that this may be ...
Wells, James D. +2 more
core +2 more sources
Neutrino mass seesaw at the weak scale, the baryon asymmetry, and the Large Hadron Collider [PDF]
, 2008 We consider theories where the Standard Model (SM) neutrinos acquire masses through the seesaw mechanism at the weak scale. We show that in such a scenario, the requirement that any pre-existing baryon asymmetry, regardless of its origin, not be washed ...
Steve Blanchet, Z. Chacko, R. Mohapatra
semanticscholar +1 more source
Two Notions of Naturalness [PDF]
, 2018 My aim in this paper is twofold: (i) to distinguish two notions of naturalness employed in BSM physics and (ii) to argue that recognizing this distinction has methodological consequences.
Williams, Porter
core +2 more sources
Disentangling Normal Aging From Severity of Disease via Weak Supervision on Longitudinal MRI
IEEE Transactions on Medical Imaging, 2022 The continuous progression of neurological diseases are often categorized into conditions according to their severity. To relate the severity to changes in brain morphometry, there is a growing interest in replacing these categories with a continuous ...
J. Ouyang +4 more
semanticscholar +1 more source
Boosted displaced decay of right-handed neutrinos at CMS, ATLAS and MATHUSLA
Journal of High Energy Physics, 2023 We investigate boosted displaced signatures in the Type-I seesaw mechanism associated with the B − L gauge symmetry. Such events arise from decays of right-handed neutrinos depending on their Yukawa couplings and masses.
Priyotosh Bandyopadhyay +2 more
doaj +1 more source
New Vector-Like Fermions and Flavor Physics [PDF]
, 2015 We study renormalizable extensions of the standard model that contain vector-like fermions in a (single) complex representation of the standard model gauge group.
Ishiwata, Koji +2 more
core +4 more sources