Publications related to Search for long-lived heavy neutral leptons decaying in the CMS muon detectors in proton-proton collisions at √<i>s</i>=13 TeV

Related publications (11)

Measurement of the branching fraction of D+ → τ+ντ

By analyzing e + e − collision data with an integrated luminosity of 7.9 fb − 1 collected with the BESIII detector at the center-of-mass energy of 3.773 GeV, the branching fraction of D + → τ + ν τ is determined as

\mathcal{B}

= (9.9 ± 1.1 stat ± 0.5 s ...

Springer2025

Search for heavy neutral leptons in final states with electrons, muons, and hadronically decaying tau leptons in proton-proton collisions at √s=13 TeV

Jan Steggemann, Konstantin Androsov, Anna Mascellani, Joanna Malgorzata Wanczyk

A search for heavy neutral leptons (HNLs) of Majorana or Dirac type using proton-proton collision data at root s = 13TeV= 13 TeV is presented. The data were collected by the CMS experiment at the CERN LHC and correspond to an integrated luminosity of 138 f ...

Springer Nature2024

Measurement of boosted Higgs bosons produced via vector boson fusion or gluon fusion in the H → b(b)over-bar decay mode using LHC proton-proton collision data at √s=13 TeV

Jan Steggemann, Konstantin Androsov, Anna Mascellani, Joanna Malgorzata Wanczyk

A measurement is performed of Higgs bosons produced with high transverse momentum (p(T)) via vector boson or gluon fusion in proton-proton collisions. The result is based on a data set with a center-of-mass energy of 13 TeV collected in 2016-2018 with the ...

Springer Nature2024

Search for B+ -> mu(+)nu(mu) and B+ -> mu N+ with inclusive tagging

Mingkui Wang, Olivier Schneider, Chao Wang, Sun Hee Kim

We report the result for a search for the leptonic decay of B+ -> mu(+)nu mu using the full Belle dataset of 711 fb(-1) of integrated luminosity at the gamma(4S) resonance. In the Standard Model leptonic B-meson decays are helicity and Cabibbo-Kobayashi-Ma ...

American Physical Society2020

Design of the third-generation neutron spallation target for the CERN's n_TOF facility

Raffaele Esposito

The neutron Time-Of-Flight (n_TOF) facility at the European Laboratory for Particle Physics (CERN) is a pulsed white-spectrum neutron spallation source producing neutrons for two experimental areas: EAR1, located 185 m downstream of the spallation target, ...

IOS PRESS2020

Search for lepton-flavour violating decays of a Higgs-like boson at LHCb

Chitsanu Khurewathanakul

This thesis presents the search for a charged-lepton flavour violation via a model-independent Higgs-like boson decaying to a muon and a tau lepton,

H\rightarrow\mu\tau

. The validation of high-

p_T

tau lepton identification is performed with the measure ...

EPFL2017

Evidence for Isospin Violation and Measurement of CP Asymmetries in B -> K*(892)gamma

Mingkui Wang, Olivier Schneider, Chao Wang, Sun Hee Kim, Tara Nanut, Jun Yong Kim

We report the first evidence for isospin violation in B -> Kgamma and the first measurement of the difference of CP asymmetries between B+->.K(+)gamma and B-0 -> K-*0 gamma. This analysis is based on the data sample containing 772 x 10(6)BB pairs that wa ...

Amer Physical Soc2017

Semi-inclusive studies of semileptonic B-s decays at Belle

Mingkui Wang, Olivier Schneider, Chao Wang, Yiming Li, Sun Hee Kim, Tara Nanut, Jun Yong Kim

We present an analysis of the semi-inclusive decays B-s -> D(s)(-)Xl(+)nu and B-s -> D-s*(-)Xl(+)nu, where X denotes a final state that may consist of additional hadrons or photons and l is an electron or muon. The studied Bs decays are contained in the 12 ...

American Physical Society2015

Search for the rare decays B-s(0) -> mu(+)mu(-) and B-0 -> mu(+)mu(-)

Jian Wang, Olivier Schneider, Yi Zhang, Lei Zhang, Aurelio Bay, Guido Haefeli, Jessica Prisciandaro, Tatsuya Nakada, Christoph Frei, Mark Tobin, Frédéric Blanc, Minh Tâm Tran, Michel De Cian, Greig Alan Cowan, Vladislav Balagura, Plamen Hristov Hopchev, Bastien Luca Muster, Frédéric Guillaume Dupertuis, Julien Rouvinet, Christophe Salzmann, Pierre Jaton, Barinjaka Rakotomiaramanana, Joël Bressieux, Raluca Anca Muresan, Johan Luisier, Albert Puig Navarro, Anne Keune, Vincent Fave, Christophe Bauer, Mathias Oleg Knecht, Neal Gauvin

A search for the decays B-s(0) -> mu(+)mu(-) and B-0 -> mu(+)mu(-) is performed with 0.37 fb(-1) of pp collisions at root s = 7 TeV collected by the LHCb experiment in 2011. The upper limits on the branching fractions are B(B-s(0) -> mu(+)mu(-)) < 1.6 x 10 ...

2012

Resonant production of the sterile neutrino dark matter and fine-tunings in the neutrino minimal standard model

Mikhail Chapochnikov

The generation of lepton asymmetry below the electroweak scale has a considerable impact on production of dark matter sterile neutrinos. Oscillations or decays of the heavier sterile neutrinos in the neutrino minimal standard model can give rise to the req ...

American Physical Society2010

Viability of Dirac phase leptogenesis

Steve Blanchet

We discuss the conditions for a non-vanishing Dirac phase delta and mixing angle theta(13), sources of CP violation in neutrino oscillations, to be uniquely responsible for the observed matter - antimatter asymmetry of the Universe through leptogenesis. We ...

2008