Results 31 to 40 of about 564,677 (236)

Search for new phenomena in multi-body invariant masses in events with at least one isolated lepton and two jets using s $$ \sqrt{s} $$ = 13 TeV proton–proton collision data collected by the ATLAS detector

open access: yesJournal of High Energy Physics, 2023
A search for resonances in events with at least one isolated lepton (e or μ) and two jets is performed using 139 fb −1 of s $$ \sqrt{s} $$ = 13 TeV proton–proton collision data recorded by the ATLAS detector at the LHC. Deviations from a smoothly falling
The ATLAS collaboration   +2935 more
doaj   +1 more source

Invariances in physics and group theory [PDF]

open access: yes, 2015
Talk given at the Conference "Lie and Klein; the Erlangen program and its impact on mathematics and physics", Strasbourg, Sept ...
openaire   +4 more sources

Rephasing invariance and permutation symmetry in flavor physics [PDF]

open access: yesThe European Physical Journal C, 2020
AbstractWith some modifications, the arguments for rephasing invariance can be used to establish permutation symmetry for the standard model. The laws of evolution of physical variables, which transform as tensors under permutation, are found to obey the symmetry, explicitly.
Kuo, T., Chiu, S.
openaire   +5 more sources

Automorphisms of Real 4 Dimensional Lie Algebras and the Invariant Characterization of Homogeneous 4-Spaces [PDF]

open access: yes, 2002
The automorphisms of all 4-dimensional, real Lie Algebras are presented in a comprehensive way. Their action on the space of $4\times 4$, real, symmetric and positive definite, matrices, defines equivalence classes which are used for the invariant ...
A Dimakis   +17 more
core   +1 more source

Higgs boson pair production at NNLO in QCD including dimension 6 operators

open access: yesJournal of High Energy Physics, 2017
In this paper we present the computation of the Higgs boson pair production cross section, both inclusive as well as differential on the invariant mass distribution, at next-to-next-to-leading order (NNLO) in QCD including effects of new physics beyond ...
Daniel de Florian   +2 more
doaj   +1 more source

A topological invariant of RG flows in 2D integrable quantum field theories [PDF]

open access: yes, 1999
We construct a topological invariant of the renormalization group trajectories of a large class of 2D quantum integrable models, described by the thermodynamic Bethe ansatz approach.
Caracciolo, R., Gliozzi, F., Tateo, R.
core   +2 more sources

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

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