Results 61 to 70 of about 1,826,426 (368)

New physics contributions to moments of inclusive b → c semileptonic decays

open access: yesJournal of High Energy Physics, 2023
Inclusive semileptonic B → X c ℓ ν ¯ ℓ $$ {X}_c\ell {\overline{\nu}}_{\ell } $$ decays, where ℓ = μ, e, are by now standard candles in the determination of the CKM element |V cb |. These determinations rely on the heavy-quark expansion and use moments of
Matteo Fael, Muslem Rahimi, K. Keri Vos
doaj   +1 more source

Some new invariant solutions of nonlinear fifth order partial differential equation via Lie approach

open access: yesPartial Differential Equations in Applied Mathematics
In this paper, the classical Lie symmetry analysis of (1+3) dimensional perturbed Zakharov–Kuznetsov (pZK) equation has been studied. We present a thorough classification of Lie point symmetries for pZK equation.
Muhammad Irshad   +5 more
doaj   +1 more source

Symmetry as a source of hidden coherent structures in quantum physics: general outlook and examples

open access: yes, 1998
A general algebraic approach, incorporating both invariance groups and dynamic symmetry algebras, is developed to reveal hidden coherent structures (closed complexes and configurations) in quantum many-body physics models due to symmetries of their ...
A. B. Govorkov   +33 more
core   +1 more source

Testing Lorentz invariance violations in the tritium beta-decay anomaly [PDF]

open access: yes, 2000
We consider a Lorentz non-invariant dispersion relation for the neutrino, which would produce unexpected effects with neutrinos of few eV, exactly where the tritium beta-decay anomaly is found.
Alfaro   +15 more
core   +3 more sources

Conformally invariant off-shell string physics [PDF]

open access: yesPhysical Review Letters, 1993
8 pages, iassns-hep-92-20 and McGill/92-48 (references added/corrected)
Myers, Robert C., Periwal, Vipul
openaire   +4 more sources

Precise Deviations for Disk Counting Statistics of Invariant Determinantal Processes [PDF]

open access: yes, 2020
We consider two-dimensional determinantal processes which are rotation-invariant and study the fluctuations of the number of points in disks. Based on the theory of mod-phi convergence, we obtain Berry-Esseen as well as precise moderate to large ...
Marcel Fenzl, Gaultier Lambert
semanticscholar   +1 more source

Apparent unitarity violation in high mass region of MbW from a “hidden” top partner at high energy colliders

open access: yesPhysics Letters B, 2016
Perturbative unitarity conditions have been playing an important role in estimating the energy scale of new physics, including the Higgs mass as the most important example.
Chengcheng Han   +2 more
doaj   +1 more source

Search for periodic signals in the dielectron and diphoton invariant mass spectra using 139 fb −1 of pp collisions at s $$ \sqrt{s} $$ = 13 TeV with the ATLAS detector

open access: yesJournal of High Energy Physics, 2023
A search for physics beyond the Standard Model inducing periodic signals in the dielectron and diphoton invariant mass spectra is presented using 139 fb −1 of s $$ \sqrt{s} $$ = 13 TeV pp collision data collected by the ATLAS experiment at the LHC. Novel
The ATLAS collaboration   +2935 more
doaj   +1 more source

An Arena for Model Building in the Cohen-Glashow Very Special Relativity

open access: yes, 2008
The Cohen-Glashow Very Special Relativity (VSR) algebra [arXiv:hep-ph/0601236] is defined as the part of the Lorentz algebra which upon addition of CP or T invariance enhances to the full Lorentz group, plus the space-time translations.
A. G. Cohen   +26 more
core   +1 more source

Diffeomorphism Invariant Actions for Partial Systems

open access: yes, 1994
Local action principles on a manifold $\M$ are invariant (if at all) only under diffeomorphisms that preserve the boundary of $\M$. Suppose, however, that we wish to study only part of a system described by such a principle; namely, the part that lies in
Atiyah   +15 more
core   +1 more source

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