Results 61 to 70 of about 81,960 (245)

Revisiting $$B_s \rightarrow PP$$ B s → P P and PV decays with contributions from $${\phi }_{B2}$$ ϕ B 2 with the perturbative QCD approach

open access: yesEuropean Physical Journal C: Particles and Fields
The $$B_s \rightarrow PP$$ B s → P P and PV decay modes are revisited at leading order within the perturbative QCD (pQCD) approach, incorporating the $$B_s$$ B s mesonic wave function (WF) $${\phi }_{B2}$$ ϕ B 2 .
Yueling Yang   +3 more
doaj   +1 more source

Exact solutions of Einstein-æther gravity in Bianchi type V cosmology

open access: yesEuropean Physical Journal C: Particles and Fields, 2020
We present the solution space of the field equations in the Einstein-æther theory for the case of a vacuum Bianchi Type V space-time. We also find that there are portions of the initial parameters space for which no solution is admitted by the reduced ...
M. Roumeliotis   +3 more
doaj   +1 more source

Selected exercises in particle and nuclear physics

open access: yes, 2018
This book presents more than 300 exercises, with guided solutions, on topics that span both the experimental and the theoretical aspects of particle physics.
Bianchini, Lorenzo, Lorenzo Bianchini
core   +1 more source

From energy provision to protein synthesis: Tunnelling nanotubes as mediators of intercellular metabolic cooperation in cancer

open access: yesFEBS Open Bio, EarlyView.
The cytoskeleton‐mediated transport of mitochondria via tunnelling nanotubes restores respiration, increases ATP production, rescues cells from apoptosis, activates the AKT/mTOR signalling pathway, promotes cell migration and invasiveness, contributes to cancer progression and treatment resistance.
Stanislava Martínková, Jan Trnka
wiley   +1 more source

The nonfactorizable QED correction to the $$\overline{B}_{s}$$ B ¯ s $${\rightarrow }$$ → $$D_{s}^{(*)} {\ell } \bar{\nu }_{\ell }$$ D s ( ∗ ) ℓ ν ¯ ℓ decays

open access: yesEuropean Physical Journal C: Particles and Fields
Considering the nonfactorizable QED corrections, the branching ratios and ratios of branching ratios $$R(D_{s}^{({*})})$$ R ( D s ( ∗ ) ) for the semileptonic $$\overline{B}_{s}$$ B ¯ s $${\rightarrow }$$ → $$D_{s}^{(*)} {\ell } \bar{\nu }_{\ell }$$ D s (
Yueling Yang   +3 more
doaj   +1 more source

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

open access: yesAdvanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur   +5 more
wiley   +1 more source

Form factors of V′ → V″ transition within the light-front quark models

open access: yesJournal of High Energy Physics, 2019
In this paper, we calculate the matrix element and form factors of vector-to- vector (V I → V II ) transition within the standard light-front (SLF) and covariant light- front (CLF) quark models (QMs), and investigate the self-consistency and Lorentz ...
Qin Chang, Li-Ting Wang, Xiao-Nan Li
doaj   +1 more source

Neutrino physics with JUNO [PDF]

open access: yes, 2017
The Jiangmen Underground Neutrino Observatory (JUNO), a 20 kton multi-purpose underground liquid scintillator detector, was proposed with the determination of the neutrino mass hierarchy (MH) as a primary physics goal. The excellent energy resolution and
Conrad, Janet Marie
core   +1 more source

Experimental Evaluation of 100Cr6 Steel Microindented Surfaces Under Lubricated Nonconformal Point Contacts

open access: yesAdvanced Engineering Materials, EarlyView.
The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi   +3 more
wiley   +1 more source

Planar three-loop master integrals for 2 → 2 processes with one external massive particle

open access: yesJournal of High Energy Physics, 2022
We present analytic results for the two tennis-court integral families relevant to 2 → 2 scattering processes involving one massive external particle and massless propagators in terms of Goncharov polylogarithms of up to transcendental weight six.
Dhimiter D. Canko, Nikolaos Syrrakos
doaj   +1 more source

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