Results 21 to 30 of about 645,781 (307)

New physics in b → se+e−: A model independent analysis

open access: yesNuclear Physics B, 2021
The lepton universality violating flavor ratios RK/RK⁎ indicate new physics either in b→sμ+μ− or in b→se+e− or in both. If the new physics is only b→se+e− transition, the corresponding new physics operators, in principle, can have any Lorentz structure ...
Ashutosh Kumar Alok   +3 more
doaj   +1 more source

Probing New Physics in b → d transitions

open access: yesJournal of High Energy Physics, 2020
Recent experimental data on several observables in semileptonic B-meson decays are found to be in tension with the corresponding Standard Model predictions. Most of these deviations are related to b → c and b → s flavour changing transitions.
Aleksey V. Rusov
doaj   +1 more source

Flavor physics in the quark sector [PDF]

open access: yes, 2008
In the past decade, one of the major challenges of particle physics has been to gain an in-depth understanding of the role of quark flavor. In this time frame, measurements and the theoretical interpretation of their results have advanced tremendously. A
Smith, Christopher   +999 more
core   +1 more source

Majorana’s approach to nonadiabatic transitions validates the adiabatic-impulse approximation

open access: yesScientific Reports, 2023
The approach by Ettore Majorana for non-adiabatic transitions between two quasi-crossing levels is revisited and significantly extended. We rederive the transition probability, known as the Landau–Zener–Stückelberg–Majorana formula, and introduce ...
P. O. Kofman   +3 more
doaj   +1 more source

B physics and Quarkonia in CMS

open access: yesEPJ Web of Conferences, 2017
The heavy-flavor sector offers the opportunity to perform indirect tests of beyond the Standard Model physics through precision measurements and of quantum chromodynamics (QCD) through particle production studies. A review of recent measurements on heavy
Fiorendi Sara
doaj   +1 more source

Prospects for B c + $$ {B}_c^{+} $$ → τ + ν τ at FCC-ee

open access: yesJournal of High Energy Physics, 2021
This paper presents the prospects for a precise measurement of the branching fraction of the leptonic B c + $$ {B}_c^{+} $$ → τ + ν τ decay at the Future Circular Collider (FCC-ee) running at the Z -pole.
Yasmine Amhis   +4 more
doaj   +1 more source

Ferromagnetism in two-dimensional hole-doped SnO

open access: yesAIP Advances, 2018
Hole-doped monolayer SnO has been recently predicted to be a ferromagnetic material, for a hole density typically above 5x1013/cm2. The possibility to induce a hole-doped stable ferromagnetic order in this two-dimensional material, either by intrinsic or
M. Houssa   +4 more
doaj   +1 more source

Voltage-controlled superconducting magnetic memory

open access: yesAIP Advances, 2019
Over the past few decades, superconducting circuits have been used to realize various novel electronic devices such as quantum bits, SQUIDs, parametric amplifiers, etc. One domain, however, where superconducting circuits fall short is information storage.
Ahmed Kenawy   +3 more
doaj   +1 more source

Physics at the B factories [PDF]

open access: yesSurveys in High Energy Physics, 2001
To appear in the Proceedings of From the Smallest to the Largest Distances, a conference in honor of Tranh Thanh Van in Moscow ...
openaire   +2 more sources

CMS physics technical design report, volume II: Physics performance

open access: yes, 2007
CMS is a general purpose experiment, designed to study the physics of pp collisions at 14 TeV at the Large Hadron Collider (LHC). It currently involves more than 2000 physicists from more than 150 institutes and 37 countries.
Physics Collaboration   +1 more
core   +1 more source

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