Results 61 to 70 of about 654 (180)

Interplay Between MW, ΩCDMh2, and (g − 2)μ in Flavor Symmetry–Based Supersymmetric Models

open access: yesAdvances in High Energy Physics, Volume 2025, Issue 1, 2025.
We study the phenomenological implications of the minimal supersymmetric standard model (MSSM) augmented by a nonabelian flavor symmetry labeled as sMSSM. Incorporating this flavor symmetry allows for a significant reduction in the original plethora of free parameters present in the MSSM, ultimately reducing them down to just seven in sMSSM.
Sajid Israr   +4 more
wiley   +1 more source

First-order electroweak phase transition at finite density

open access: yes
We study the Electroweak phase transition with the Standard Model effective field theory at finite temperature and finite density. Utilizing the dimensional reduction approach, we construct the tree dimensional thermal effective field theory at finite ...
Ligong Bian, Renhui Qin
core   +2 more sources

A Feynman integral depending on two elliptic curves

open access: yesJournal of High Energy Physics, 2022
We study a two-loop four-point function with one internal mass. This Feynman integral is one of the simplest Feynman integrals depending on two elliptic curves. We transform the associated differential equation into an ε-form. We study the entries of the
Hildegard Müller, Stefan Weinzierl
doaj   +1 more source

The global electroweak fit at NNLO and constraints on new physics

open access: yes, 2015
We present an update of the global electroweak fit using electroweak next-to-next-to-leading order (NNLO) calculations for all precision observables that enter the fit.
Kogler, Roman   +17 more
core   +1 more source

How to Experimentally Determine the Influence of the Weak Nuclear Force in Promoting Molecular Chirality via Heavy–Metal Promoted Autocatalytic Synthesis of Amino Acids

open access: yesChemistrySelect, Volume 9, Issue 36, September 25, 2024.
An experimental test of the impact of the parity non‐conserving weak nuclear interaction on the chirality of a nascent chiral carbon center is proposed. It is shown that catalysis by heavy elements could yield observable chiral preferences within a time span of weeks to months when heavy metals are used to promote amino acid synthesis via an ...
J. A. Cowan
wiley   +1 more source

Angular phase-space integrals with four denominators through Mellin-Barnes

open access: yesJournal of High Energy Physics
We compute four-denominator angular phase-space integrals using the Mellin-Barnes (MB) technique in dimensional regularisation. Independent of the scattering process, an angular integral can be categorised based on the nature of the momenta appearing in ...
Taushif Ahmed   +2 more
doaj   +1 more source

Electroweak bosonic 2-loop corrections to the Z-pole precision observables [PDF]

open access: yes, 2017
Precision measurements of properties of the electroweak W - and Z-bosons provide strong constraints on the Standard Model (SM) and extensions thereof. This sensitivity crucially depends on the availability of accurate theoretical predictions for these ...
J. Usovitsch   +9 more
core   +1 more source

Some recent results for SU(3) and octonions within the geometric algebra approach to the fundamental forces of nature

open access: yesMathematical Methods in the Applied Sciences, Volume 47, Issue 3, Page 1471-1491, February 2024.
Different ways of representing the group SU(3)$$ SU(3) $$ within a Geometric Algebra approach are explored. As part of this, we consider characteristic multivectors for SU(3)$$ SU(3) $$ and how these are linked with decomposition of generators into commuting bivectors. The setting for this work is within a 6d Euclidean Clifford Algebra.
Anthony Lasenby
wiley   +1 more source

Measurement of the differential and double-differential Drell-Yan cross sections in proton-proton collisions at root s=7 TeV [PDF]

open access: yes, 2013
Measurements of the differential and double-differential Drell-Yan cross sections are presented using an integrated luminosity of 4.5 (4.8) fb−1 in the dimuon (dielectron) channel of proton-proton collision data recorded with the CMS detector at the LHC ...
Sorokin P.   +999 more
core   +1 more source

Limits on Dark Photons, Scalars, and Axion‐Electromagnetodynamics with the ORGAN Experiment

open access: yesAnnalen der Physik, Volume 536, Issue 1, January 2024.
The nature of dark matter is one of the biggest mysteries in the Universe. ORGAN is an experiment which seeks to understand dark matter by figuring out what it is made of. In this article, the current sensitivity of ORGAN to various promising dark matter candidates is presented, and the future sensitivity is projected.
Ben T. McAllister   +6 more
wiley   +1 more source

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