Results 81 to 90 of about 45,250 (232)
Measurement of the Differential Production Cross Section of W Bosons and Charge Asymmetry at �s = 7 TeV with the ATLAS Detector [PDF]
, 2012 This document presents a measurement of the production cross section of W bosons and of its charge asymmetry in proton-proton collisions at a centre of mass energy of 7 TeV with the ATLAS detector. These measurements provide information on the momentum
Tsionou, Dimitra
core
Phenomenological anatomy of top-quark FCNCs induced by a light scalar singlet
Journal of High Energy PhysicsScalar singlets under the Standard Model gauge group appear naturally in many well-motivated New Physics scenarios, such as the composite Higgs models. Unlike the Higgs boson in the Standard Model, they can induce large flavour-changing neutral currents (
Biao-Feng Hou +4 more
doaj +1 more source
On Quark–Lepton Mixing and the Leptonic CP Violation
UniverseIn the absence of a Grand Unified Theory framework, connecting the values of the mixing parameters in the quark-and-lepton sector is a difficult task, unless one introduces ad hoc relations among the matrices that diagonalize such different kinds of fermions.
Alessio Giarnetti +2 more
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Analytical Description of the Distributions of Primary and Secondary Cosmogenic Particles
Advances in High Energy Physics, Volume 2026, Issue 1, 2026.In this work, we present an analytical description of the energy distributions of primary and secondary cosmogenic particles on Earth in terms of parameters having clear physical meaning. A modified power law is assumed for energy distributions, incorporating terms such as energy loss/decay, which are effective at low energies, and a source term, which
Shvetaank Tripathi +2 more
wiley +1 more source
Search for new particles in events with one lepton and missing transverse momentum in pp collisions at s√ = 8 TeV with the ATLAS detector [PDF]
, 2014 This paper presents a search for new particles in events with one lepton (electron or muon) and missing transverse momentum using 20.3 fb−1 of proton-proton collision data at s√ = 8 TeV recorded by the ATLAS experiment at the Large Hadron Collider.
Farrington, Sinead +8 more
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Lepton Asymmetric Universe [PDF]
, 2022 The recent observation of $^4$He implies that our universe has a large lepton asymmetry. We consider the Affleck-Dine (AD) mechanism for lepton number generation.
Murai, Kai, Kawasaki, Masahiro
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A Note on the Connection between Non-Additive Entropy and h-Derivative
Entropy, 2023 In order to study as a whole a wide part of entropy measures, we introduce a two-parameter non-extensive entropic form with respect to the h-derivative, which generalizes the conventional Newton–Leibniz calculus.
Jin-Wen Kang +2 more
doaj +1 more source
Electroweak Lepton-Lepton and Lepton-Antilepton Bound States
, 1999 In model independent way we consider the possibility of the existence of fermion-antifermion, fermion-fermion bound states which appear due to $γ, Z^0(W^{\pm}$-bosons and scalar, pseudoscalars exchanges including radiative corrections. Our consideration includes the case where at least one particle in the bound state is Majorana fermion or scalar.This ...
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Heavy leptons, lepton mixing, and nonconservation of lepton-type number
Physics Letters B, 1977 Abstract Introducing a new weak doublet of heavy leptons, one is led to a mixing of the various lepton states with respect to the weak interaction and subsequently to the violation of electron and muon number conservation (e.g., the decay μ →e γ ). The new charged lepton can only decay via such a mixing and is therefore relatively long-lived ( τ >10
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Mass Spectra, Radii, and Decay Widths of Toponium
Advances in High Energy Physics, Volume 2026, Issue 1, 2026.In this work, the radial Schrodinger equation with a nonrelativistic quark potential model (NRQPM) is solved numerically by employing the shooting method. Calculated numerical wave functions (or solutions) are used to compute the masses, root mean square (RMS) radii, E1, M1 radiative transition widths, annihilation decay widths, and branching ratios of
Nosheen Akbar +3 more
wiley +1 more source