Results 81 to 90 of about 2,508,669 (275)

Direct determination of Wilson coefficients using B 0 → K ∗0 μ + μ − decays

open access: yesJournal of High Energy Physics, 2017
A method to directly determine the Wilson coefficients for rare b → s transitions using B 0 → K ∗0 μ + μ − decays in an unbinned maximum likelihood fit is presented.
T. Hurth, C. Langenbruch, F. Mahmoudi
doaj   +1 more source

Strong constraints on the b → sγ photon polarisation from B 0 → K *0 e + e − decays

open access: yesJournal of High Energy Physics, 2020
An angular analysis of the B 0 → K* 0 e + e − decay is performed using a data sample corresponding to an integrated luminosity of 9 fb −1 of pp collisions collected with the LHCb experiment.
The LHCb collaboration   +986 more
doaj   +1 more source

Flavour-changing neutral current processes beyond the Standard Model

open access: yes, 2021
In dieser Arbeit untersuche ich, im Rahmen von Lösungen des Dunkle-Materie-Problems, seltene Zerfälle in der Higgs- und $B$-Physik. Ich werde alle Aspekte und Techniken diskutieren, die zur Durchführung der Rechnungen benötigt werden. In dieser Arbeit hebe ich Mechanismen zur Unterdrückung von flavour-ändernden neutralen Strömen, wie beispielsweise $b \
openaire   +3 more sources

Mechanical Flexibility Enables DNA Origami to Overcome Steric Confinement in Mucus

open access: yesAdvanced Science, EarlyView.
Mechanical flexibility is introduced as a design parameter to enhance nanocarrier transport in mucus. Using DNA origami, flexibility is decoupled from size, shap and surface chemistry, revealing improved passage through confined hydrogel networks. While surface passivation reduces aggregation, flexibility further boosts transport, offering a general ...
Matteo Tollemeto   +5 more
wiley   +1 more source

Search for top quark decays t → qH, with H → γγ, in s = 13 $$ \sqrt{s}=13 $$ TeV pp collisions using the ATLAS detector

open access: yesJournal of High Energy Physics, 2017
This article presents a search for flavour-changing neutral currents in the decay of a top quark into an up-type (q = c, u) quark and a Higgs boson, where the Higgs boson decays into two photons.
The ATLAS collaboration   +2875 more
doaj   +1 more source

Charting the Future of Stereoselective Carbohydrate Synthesis: The Essential Role of Cross‐Disciplinary Innovation

open access: yesAdvanced Science, EarlyView.
Cross‐disciplinary endeavors are blossoming across the broad chemical sciences. This perspective provides a glimpse into the rewarding interdisciplinary journey taken by the Charles Loh research group in pioneering the σ‐hole based catalytic glycosylation strategy.
Charles C. J. Loh
wiley   +1 more source

MEtop—a generator for single top production via FCNC interactions

open access: yesEuropean Physical Journal C: Particles and Fields, 2012
We present a generator for single top-quark production via flavour-changing neutral currents. The MEtop event generator allows for Next-to-Leading-Order direct top production pp→t and Leading-Order production of several other single top processes.
Rita Coimbra   +3 more
doaj   +1 more source

SU(3)F gauge family model and new symmetry breaking scale from FCNC processes

open access: yesNuclear Physics B, 2016
Based on the SU(3)F gauge family symmetry model which was proposed to explain the observed mass and mixing pattern of neutrinos, we investigate the symmetry breaking, the mixing pattern in quark and lepton sectors, and the contribution of the new gauge ...
Shou-Shan Bao, Zhuo Liu, Yue-Liang Wu
doaj   +1 more source

Multiscale Coupling From Mastication to Retronasal Aroma Perception: The PG‐DTCFN Model and Multiphysics Simulation

open access: yesAdvanced Science, EarlyView.
Using grilled lamb skewers as a model system, this work builds a multiscale coupling framework from oral processing to retronasal aroma perception, reveals dual‐kinetic release patterns and Electroencephalogram‐characterized central encoding features, and proposes an interpretable physics‐guided deep learning model validated by multiphysics simulation,
Che Shen   +12 more
wiley   +1 more source

Analysis of the quark sector in the 2HDM with a four-zero Yukawa texture using the most recent data on the CKM matrix

open access: yesPhysics Letters B, 2015
In this Letter we analyse, in the context of the general 2-Higgs Doublet Model, the structure of the Yukawa matrices, Y˜1,2q, by assuming a four-zero texture ansatz for their definition.
O. Félix-Beltrán   +5 more
doaj   +1 more source

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