Results 1 to 10 of about 13,658,162 (350)

Charming new B-physics [PDF]

open access: yesJournal of High Energy Physics, 2020
We give a comprehensive account of the flavour physics of Beyond-Standard-Model (BSM) effects in b → c c ¯ $$ \overline{c} $$ cs transitions, considering the full set of 20 four-quark operators.
Sebastian Jäger   +3 more
doaj   +5 more sources

Constraining new physics in b → cℓν transitions [PDF]

open access: diamondJournal of High Energy Physics, 2019
B decays proceeding via b → cℓν transitions with ℓ = e or μ are tree-level processes in the Standard Model. They are used to measure the CKM element V cb , as such forming an important ingredient in the determination of e.g. the unitarity triangle; hence
Martin Jung, David M. Straub
doaj   +2 more sources

Measurement of the CP-violating phase ϕs in the Bs0→J/ψϕ(1020)→μ+μ−K+K− channel in proton-proton collisions at s=13TeV

open access: yesPhysics Letters B, 2021
The CP -violating weak phase ϕs and the decay width difference ΔΓs between the light and heavy Bs0 mass eigenstates are measured with the CMS detector at the LHC in a sample of 48500reconstructed Bs0→J/ψϕ(1020)→μ+μ−K+K− events.
A.M. Sirunyan   +2381 more
doaj   +1 more source

Epitaxial growth of V2O3 thin films on Si(111) by molecular beam epitaxy

open access: yesResults in Physics, 2023
Vanadium sesquioxide (V2O3) is a strongly correlated electron material exhibiting two distinct metal–insulator transitions that can be tuned via strain, doping, or pressure, making it an interesting material for new-generation sensors or smart devices ...
Alberto Binetti   +5 more
doaj   +1 more source

Tuning the spin texture of graphene with size-specific Cu n clusters: a first-principles study

open access: yesJPhys Materials, 2023
The size dependent interaction of Cu _n ( n = 1‒5) clusters with pristine and defective (C-vacancy) graphene is studied by employing density functional theory.
Ramasamy Murugesan   +4 more
doaj   +1 more source

Impact of b → c measurements on Λb→pτν¯ decay in U1 leptoquark model

open access: yesNuclear Physics B, 2023
The measurements of several lepton flavor universality (LFU) violating observables in the decays induced by the quark level transition b→cτν¯ provide an inkling of plausible physics beyond the standard model of electroweak interactions.
Shabana Khan   +2 more
doaj   +1 more source

B physics and quarkonia at CMS

open access: yesEPJ Web of Conferences, 2015
Selected recent results on B physics and quarkonia are presented. These include a determination of the CP-violating phase ϕs and the decay width difference ΔΓs of the light and heavy Bs states with Bs → J/ψ Φ(1020), prompt double-differential production ...
Wulz Claudia-Elisabeth
doaj   +2 more sources

Overcoming 1 part in $$10^9$$ 10 9 of earth angular rotation rate measurement with the G Wettzell data

open access: yesEuropean Physical Journal C: Particles and Fields, 2022
The absolute measurement of the Earth angular rotation rate with ground-based instruments becomes challenging if the 1 part in $$10^9$$ 10 9 of precision has to be obtained.
A. D. V. Di Virgilio   +10 more
doaj   +1 more source

Observation of the decay B+→ψ(2S)ϕ(1020)K+ in pp collisions at s=8TeV

open access: yesPhysics Letters B, 2017
The decay B+→ψ(2S)ϕ(1020)K+ is observed for the first time using data collected from pp collisions at s=8TeV by the CMS experiment at the LHC, corresponding to an integrated luminosity of 19.6fb−1.
V. Khachatryan   +2 more
doaj   +1 more source

Quantum mechanisms for selective detection in complex gas mixtures using conductive sensors

open access: yesScientific Reports, 2023
In this paper, we consider new quantum mechanisms for selective detection in complex gaseous media which provide the highest possible efficiency of quantum sensors and for the first time analyze their nature. On the basis of these quantum mechanisms, the
G. Kamarchuk   +9 more
doaj   +1 more source

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