Results 51 to 60 of about 2,508,669 (275)

Test of lepton flavor universality and search for lepton flavor violation in B → Kℓℓ decays

open access: yesJournal of High Energy Physics, 2021
We present measurements of the branching fractions for the decays B → Kμ + μ − and B → Ke + e − , and their ratio (R K ), using a data sample of 711 fb −1 that contains 772 × 106 B B ¯ $$ B\overline{B} $$ events.
The BELLE collaboration   +223 more
doaj   +1 more source

Electrochromic Adaptive Solar Heater and Sub‐Ambient Passive Daytime Radiative Cooler

open access: yesAdvanced Materials, EarlyView.
An electrochromic Cu–Bi nanocluster device dynamically switches between solar heating and daytime sub‐ambient radiative cooling without mechanical motion. Defect‐activated graphene, minimized electrolyte loss, and pulse‐assisted reversible electrodeposition enable opposite solar and mid‐infrared modulation in one opaque platform, establishing a design ...
Chenxi Sui   +11 more
wiley   +1 more source

Measurement of the branching fraction ratio R K at large dilepton invariant mass

open access: yesJournal of High Energy Physics
A test of lepton universality between muons and electrons is performed using B + → K + ℓ + ℓ − decays (where ℓ = e, μ), in the dilepton invariant-mass-squared region above 14.3 GeV2 /c 4.
The LHCb collaboration   +1158 more
doaj   +1 more source

Flavour-changing-neutral-current processes in B physics [PDF]

open access: yesNuclear Physics B - Proceedings Supplements, 1995
Recent progress in flavour-changing-neutral-current (FCNC) processes is reviewed with particular emphasis on the role of QCD. Standard model (SM) is consistent with data. In particular, the rate and final-state distributions in radiative rare B decays, B → Xs + γ, are well accounted for in the SM in terms of the short-distance contribution.
openaire   +1 more source

b -> s gamma decay in the two Higgs doublet model with flavour changing neutral currents

open access: yes, 1999
We study the b --> s gamma decay including the next-to-leading QCD corrections in the two Higgs doublet model with flavour changing neutral currents at the tree level.
Iltan, EO   +2 more
core   +1 more source

Polyphenol‐Inspired Materials for Agricultural Applications

open access: yesAdvanced Materials, EarlyView.
This review outlines the use of polyphenol‐inspired materials for sustainable agriculture, highlighting their molecular design, interfacial assembly, structure–property relationships, and prospects toward precision agriculture, climate resilience, ecosystem protection, and circular bioeconomy strategies.
Haofu Liu   +8 more
wiley   +1 more source

Analysis of Λ b 0 $$ {\Lambda}_b^0 $$ → pK − μ + μ − decays

open access: yesJournal of High Energy Physics
The differential branching fraction and angular coefficients of Λ b 0 $$ {\Lambda}_b^0 $$ → pK − μ + μ − decays are measured in bins of the dimuon mass squared and dihadron mass.
The LHCb collaboration   +1140 more
doaj   +1 more source

Recent Advances of Slip Sensors for Smart Robotics

open access: yesAdvanced Materials Technologies, EarlyView.
This review summarizes recent progress in robotic slip sensors across mechanical, electrical, thermal, optical, magnetic, and acoustic mechanisms, offering a comprehensive reference for the selection of slip sensors in robotic applications. In addition, current challenges and emerging trends are identified to advance the development of robust, adaptive,
Xingyu Zhang   +8 more
wiley   +1 more source

Probing the $$h c\bar{c} $$ h c c ¯ coupling at a Future Circular Collider in the electron-hadron mode

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
We study the production of a neutral Higgs boson at a Future Circular Collider in the electron-hadron mode (FCC-eh) through the leading process $$e^- p \rightarrow \nu _e h q $$ e - p → ν e h q assuming the decay channel $$h \rightarrow c \bar{c} $$ h ...
J. Hernández-Sánchez   +2 more
doaj   +1 more source

Flavour changing neutral currents and axions [PDF]

open access: yes, 2019
In this work we analyze the signals of axion-like particles (ALPs) in flavour changing neutral currents processes. We adopt an effective field theory approach to parametrize ALP couplings to the electroweak bosonic sector and ALP contribution to FCNC ...
Nava, Jacopo
core  

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