Results 61 to 70 of about 117,601 (193)

Measurement of the CP Violation Parameter sin(2phi_1) in B^0_d Meson Decays [PDF]

open access: yes, 2001
We present a measurement of the Standard Model CP violation parameter sin(2phi_1) based on a 10.5 fb^{-1} data sample collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric e+e- collider.
A. Abashian   +289 more
core   +2 more sources

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

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

Recent ATLAS results in the field of meson physics

open access: yesEPJ Web of Conferences, 2014
Recent results on flavor physics are presented, using data from the ATLAS detector. The ϓ(nS) and charmonium inclusive production cross sections are discussed. J/ψ production associated with a W vector boson is presented.
Wang Rui
doaj   +1 more source

Testing CPT with B mesons

open access: yesAIP Conference Proceedings, 1998
Apparent violations of CPT and Lorentz symmetry might arise in nature as a result of spontaneous symmetry breaking in a theory beyond the standard model. This talk summarizes a few relevant theoretical and experimental issues, with some emphasis on implications for CPT tests with neutral-B mesons.
openaire   +2 more sources

B mesons on the transverse lattice [PDF]

open access: yesNuclear Physics B - Proceedings Supplements, 2002
invited talk given at CSSM workshop on `Lattice Hadron Physics', Cairns, July 2001 and at ECT* workshop on `Light-cone Physics: Particles and String', Trento, Sept ...
Burkardt, M., Seal, S. K.
openaire   +2 more sources

Rare radiative leptonic B-decays

open access: yesEPJ Web of Conferences, 2016
We obtain predictions for B(s) → e+e−γ and B(s) → μ+μ−γ decays. All the contributions containing long-distance QCD effects are calculated in the framework of relativistic quark model.
Kozachuk Anastasiia   +2 more
doaj   +1 more source

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