Results 81 to 90 of about 12,458,012 (347)

Updated Next-to-Next-to-Leading-Order QCD Predictions for the Weak Radiative B-Meson Decays. [PDF]

open access: yesPhysical Review Letters, 2015
Weak radiative decays of the B mesons belong to the most important flavor changing processes that provide constraints on physics at the TeV scale. In the derivation of such constraints, accurate standard model predictions for the inclusive branching ...
M. Misiak   +17 more
semanticscholar   +1 more source

Scaling from microsite to landscape to resolve litter decomposition dynamics in globally extensive drylands

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Decomposition is the transformation of dead organic matter into its inorganic constituents. In most biomes, decomposition rates can be accurately predicted with simple mathematical models, but these models have long under‐predicted decomposition in globally extensive ...
Heather L. Throop   +8 more
wiley   +1 more source

Rare B Meson Decays With Omega Mesons [PDF]

open access: yes, 2006
Rare charmless hadronic B decays are particularly interesting because of their importance in understanding the CP violation, which is essential to explain the matter-antimatter asymmetry in our universe, and of their roles in testing the ''effective'' theory of B physics.
openaire   +2 more sources

Precision for B-meson matrix elements [PDF]

open access: yesJournal of High Energy Physics, 2008
We demonstrate how HQET and the Step Scaling Method for B-physics, pioneered by the Tor Vergata group, can be combined to reach a further improved precision. The observables considered are the mass of the b-quark and the B_s-meson decay constant. The demonstration is carried out in quenched lattice QCD. We start from a small volume, where one can use a
Guazzini, D   +2 more
openaire   +6 more sources

Analysis of two-body charmed B meson decays in factorization-assisted topological-amplitude approach [PDF]

open access: yes, 2015
Within the factorization-assisted topological-amplitude approach, we study the two-body charmed B meson decays B-u,B-d,B-s -> (DM)-M-(*), with M denoting a light pseudoscalar (or vector) meson.
Si-Hong Zhou   +5 more
semanticscholar   +1 more source

Leaf‐chewing but not sap‐feeding herbivores create soil legacies that shape plant resistance through trait‐mediated, guild‐specific effects in Baccharis salicifolia

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Herbivory can affect the soil microbiome, creating legacies that affect plant resistance, but how these effects vary by feeding guild and the plant traits involved remain underexplored. We tested how soil legacies created by a leaf‐chewing caterpillar (Spodoptera exigua)
Carla Vázquez‐González   +7 more
wiley   +1 more source

Measurement of CP observables in B±→D(⁎)K± and B±→D(⁎)π± decays

open access: yesPhysics Letters B, 2018
Measurements of CP observables in B±→D(⁎)K± and B±→D(⁎)π± decays are presented, where D(⁎) indicates a neutral D or D⁎ meson that is an admixture of D(⁎)0 and D¯(⁎)0 states.
R. Aaij   +806 more
doaj   +1 more source

Scaling behaviors of heavy flavor meson suppression and flow in different nuclear collision systems at the LHC

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
We explore the system size dependence of heavy-quark-QGP interaction by studying the heavy flavor meson suppression and elliptic flow in Pb–Pb, Xe–Xe, Ar–Ar and O–O collisions at the LHC. The space-time evolution of the QGP is simulated using a $$(3+1)$$
Shu-Qing Li   +4 more
doaj   +1 more source

PENGUIN DECAYS OFBMESONS [PDF]

open access: yesAnnual Review of Nuclear and Particle Science, 1998
▪ Abstract  Penguin, or loop, decays of B mesons induce effective flavor-changing neutral currents, which are forbidden at tree level in the standard model. These decays give special insight into the CKM matrix and are sensitive to non–standard-model effects.
Lingel, Karen   +2 more
openaire   +2 more sources

Lepton flavor violating B meson decays via a scalar leptoquark [PDF]

open access: yes, 2015
We study the effect of scalar leptoquarks in the lepton flavor violating $B$ meson decays induced by the flavor-changing transitions $b\ensuremath{\rightarrow}q{l}_{i}^{+}{l}_{j}^{\ensuremath{-}}$ with $q=s$, $d$. In the standard model, these transitions
S. Sahoo, R. Mohanta
semanticscholar   +1 more source

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