Zobrazeno 1 - 10
of 157
pro vyhledávání: ''
Autor:
P. de Simone
Publikováno v:
EPJ Web of Conferences, Vol 234, p 01004 (2020)
Tests of lepton flavour universality inBdecays offer an excellent opportunity to test the Standard Model, and show hints of new physics in analyses performed by the LHCb, Belle and BaBar experiments. Several theoretical models proposed to explain pos
Publikováno v:
EPJ Web of Conferences, Vol 234, p 01007 (2020)
EPJ Web of Conferences, 234
International Workshop on “Flavour Changing and Conserving Processes” (FCCP2019)
EPJ Web of Conferences, 234
International Workshop on “Flavour Changing and Conserving Processes” (FCCP2019)
Searches for permanent electric dipole moments of fundamental particles and systems with spin are the experiments most sensitive to new CP violating physics and a top priority of a growing international community. We briefly review the current status
Autor:
J. William Gary
Publikováno v:
EPJ Web of Conferences, Vol 235, p 04001 (2020)
The BABAR Collaboration at SLAC continues to produce a wide variety of publications on interesting and unique topics despite having ceased data-collection operations more than 10 years ago. Presented here are the results of three recent studies. The
Autor:
Milos Dordevic
Publikováno v:
EPJ Web of Conferences, Vol 222, p 01001 (2019)
The most recent results of a Higgs boson production and properties from the CMS Collaboration using the LHC Run 1 and Run 2 data are reported. These include analyses of a Higgs boson decaying to a pair of photons, four leptons via Z boson pair decays
Autor:
D.A. Epifanov
Publikováno v:
EPJ Web of Conferences, Vol 218, p 05001 (2019)
Recent results of a high-statistics τ lepton studies at B factories are reported. Reviewed are the measurements of Michel parameters in leptonic and radiative leptonic τ decays at Belle, as well as the measurement of the branching fractions of the
Publikováno v:
EPJ Web of Conferences, Vol 212, p 04010 (2019)
An extension of the well known ee → 4l event generator of F. A. Berends, P. H. Daverveldt, and R. Kleiss is presented. This extension accounts for production of narrow resonances, as well as the initial state radiation. In addition, it allows one t
Autor:
André Schöning, P. W. Cattaneo
Publikováno v:
EPJ Web of Conferences, Vol 212, p 01004 (2019)
The MEG experiment searching for lepton flavor violating muon decay, finished data taking successfully in 2013. The final sensitivity of the experiment was 5.3 × 10−13, and since the experiment did not find any signal, the upper limit of the branc
Publikováno v:
EPJ Web of Conferences, Vol 212, p 03007 (2019)
The Nambu–Jona-Lasinio model is applied to describe processes of electron-positron annihilation into mesons at center-of-mass energies below 2GeV and hadronic decays of tau leptons. Contributions of intermediate scalar, vector, and axial-vector mes
Autor:
D. Kisielewska
Publikováno v:
EPJ Web of Conferences, Vol 199, p 03006 (2019)
The KLOE and KLOE-2 experiments at the Laboratori Nazionali di Frascati (Italy) collected almost 8 fb−1 of integrated luminosity at the energy equal to the mass of ϕ meson. The excellent time resolution of the electromagnetic calorimeter and the v
Autor:
Kei Yamamoto
Publikováno v:
EPJ Web of Conferences, Vol 234, p 01017 (2020)
We analyzed how to test flavor and helicity structures of the corresponding amplitudes in view of future data, motivated by the recent hints of lepton flavor universality violation observed in semileptonic B decays. The general assumption that non-st