Results 51 to 60 of about 30,521 (228)

Prospects for Studies of the Free Fall and Gravitational Quantum States of Antimatter

open access: yesAdvances in High Energy Physics, Volume 2015, Issue 1, 2015., 2015
Different experiments are ongoing to measure the effect of gravity on cold neutral antimatter atoms such as positronium, muonium, and antihydrogen. Among those, the project GBAR at CERN aims to measure precisely the gravitational fall of ultracold antihydrogen atoms.
G. Dufour   +9 more
wiley   +1 more source

Exploring New Models in All Detail with SARAH

open access: yesAdvances in High Energy Physics, Volume 2015, Issue 1, 2015., 2015
I give an overview about the features the Mathematica package SARAH provides to study new models. In general, SARAH can handle a wide range of models beyond the MSSM coming with additional chiral superfields, extra gauge groups, or distinctive features like Dirac gaugino masses.
Florian Staub, Gordon Kane
wiley   +1 more source

Current Direct Neutrino Mass Experiments

open access: yesAdvances in High Energy Physics, Volume 2013, Issue 1, 2013., 2013
In this contribution, we review the status and perspectives of direct neutrino mass experiments, which investigate the kinematics of β‐decays of specific isotopes (3H, 187Re, 163Ho) to derive model‐independent information on the averaged electron (anti)neutrino mass. After discussing the kinematics of β‐decay and the determination of the neutrino mass,
G. Drexlin   +4 more
wiley   +1 more source

Opportunities with (semi)leptonic rare charm decays [PDF]

open access: green, 2016
To be published in the proceedings of 51st Recontres de Moriond EW 2016, La Thuile, Italy, 12-19 Mar ...
Stefan de Boer
openalex   +3 more sources

Coherent and Incoherent Neutral Current Scattering for Supernova Detection

open access: yesAdvances in High Energy Physics, Volume 2012, Issue 1, 2012., 2012
The total cross sections as well as the neutrino event rates are calculated in the neutral current neutrino scattering off 40Ar and 132Xe isotopes at neutrino energies (Ev < 100 MeV). The individual contribution coming from coherent and incoherent channels is taking into account.
P. C. Divari, Guey-Lin Lin
wiley   +1 more source

Renormalisation group analysis of scalar Leptoquark couplings addressing flavour anomalies: emergence of lepton-flavour universality

open access: yesJournal of High Energy Physics, 2023
Leptoquarks with masses between 2 TeV and 50 TeV are commonly invoked to explain deviations between data and Standard-Model (SM) predictions of several observables in the decays b → cτ ν ¯ $$ b\to c\tau \overline{\nu} $$ and b → sℓ + ℓ − with ℓ = e, μ ...
Marco Fedele   +2 more
doaj   +1 more source

Semi-leptonic $D_s^+$(1968) decays as a scalar meson probe [PDF]

open access: yes, 2011
The unusual multiplet structures associated with the light spin zero mesons have recently attracted a good deal of theoretical attention. Here we discuss some aspects associated with the possibility of getting new experimental information on this topic ...
Amir H. Fariborz   +5 more
core   +3 more sources

Strange mass corrections to hyperonic semi-leptonic decays in statistical model [PDF]

open access: yes, 2013
We study the spin distribution, weak decay coupling constant ratios for strange baryon octets with SU(3) breaking effects. Baryon is taken as an ensemble of quark-gluon Fock states in the sea with three valence quarks with definite spin, color and flavor
A. Upadhyay, M. Batra
semanticscholar   +1 more source

(Semi-)Leptonic D decays at BESIII

open access: yesNuclear and Particle Physics Proceedings, 2022
BESIII has collected 2.93 fb-1 of data at 3.773 GeV, and 6.3 fb-1 of data between 4.18 and 4.23 GeV, respectively. We will report precison measurements of the decay constants fDs+ and the CKM matrix elements |Vcs| via D(s)+ -> l+v (l=mu, tau), which are important to test the LQCD calculations and the CKM matrix unitarity.
openaire   +2 more sources

A study of the semi-leptonic decays of K+ mesons

open access: yesNuclear Physics B, 1975
Abstract The form factors of the semi-leptonic decays K + → π 0 e + ν and K + → π 0 μ + ν have been investigated using a sample of events detected in the CERN 1.1 m 3 heavy liquid bubble chamber. Analyses have been carried out using methods independent of any assumption of the q 2 dependence of the form factors in addition to the usual ...
H. Braun   +13 more
openaire   +2 more sources

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