Publications associées à Measurement of the T(t)over-barh and Th Production Rates in the H <i>→</i>b(b)over-bar Decay Channel Using Proton-proton Collision Data at √<i>s</i>=13 Tev

Publications associées (12)

Observation of ηc (1 S,2 S) and χcJ decays to 2 (π+π-)η via ψ (3686) radiative transitions

Based on (2712.4±14.1)×106 ψ(3686) decays collected with the BESIII detector, we have observed, for the first time, the hadronic decays of S- and P-wave charmonium states into 2(π+π-)η via radiative transitions from ψ(3686). The branching fraction of the d ...

2025

Search for the Lepton Number Violation Decay Φ → Π+π+e-e- Via j/ψ → Φη

Yunxuan Song

Using an electron-positron collision data sample corresponding to (1.0087 +/- 0.0044) x 10(10) J/psi events collected using the BESIII detector at the BEPCII collider, we firstly search for the lepton number violation decay phi -> pi(+)pi(+)e(-)e(-) via J/ ...

IOP Publishing Ltd2025

Test of lepton flavor universality in B± → K± μ+μ- and B± → K± e+ e- decays in proton-proton collisions at √s=13 TeV

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

A test of lepton flavor universality in B-+/- -> K +/- mu(+) mu(-) and B-+/- -> (K)+/- e(+) e(-) decays, as well as a measurement of differential and integrated branching fractions of a nonresonant B-+/- -> K-+/- mu(+)mu(-) decay are presented. The analysi ...

IOP Publishing Ltd2024

Search for Higgs boson pair production with one associated vector boson in proton-proton collisions at √s=13 TeV

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

A search for Higgs boson pair (HH) production in association with a vector boson V (W or Z boson) is presented. The search is based on proton-proton collision data at a center-of-mass energy of 13 TeV, collected with the CMS detector at the LHC, correspond ...

SPRINGER2024

Weyl-invariant Einstein-Cartan gravity: unifying the strong CP and hierarchy puzzles

Mikhail Chapochnikov

We show that the minimal Weyl-invariant Einstein-Cartan gravity in combination with the Standard Model of particle physics contains just one extra scalar degree of freedom (in addition to the graviton and the Standard Model fields) with the properties of a ...

Springer Nature2024

Search for Leptonic Decays of Dark Photons at NA62

Radoslav Marchevski, Alina Kleimenova

The NA62 experiment at CERN, configured in beam-dump mode, has searched for dark photon decays in flight to electron-positron pairs using a sample of 1.4 x 10(17) protons on dump collected in 2021. No evidence for a dark photon signal is observed. The comb ...

American Physical Society (APS)2024

Search for physics beyond the standard model in top quark production with additional leptons in the context of effective field theory

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

A search for new physics in top quark production with additional final-state leptons is performed using data collected by the CMS experiment in proton-proton collisions at root s = 13TeV at the LHC during 2016-2018. The data set corresponds to an integrate ...

Springer Nature2023

First Search for Exclusive Diphoton Production at High Mass with Tagged Protons in Proton-Proton Collisions at root s=13 TeV

Jan Steggemann

A search for exclusive two-photon production via photon exchange in proton-proton collisions, pp -> p gamma gamma p with intact protons, is presented. The data correspond to an integrated luminosity of 9.4 fb(-1) collected in 2016 using the CMS and TOTEM d ...

AMER PHYSICAL SOC2022

Observation of the Mass Difference Between Neutral Charm-Meson Eigenstates

Olivier Schneider, Aurelio Bay, Guido Haefeli, Tatsuya Nakada, Frédéric Blanc, Lesya Shchutska, Elena Graverini, Michel De Cian, Vladimir Macko, Federico Leo Redi, Sebastian Schulte, Donal Patrick Hill, Tara Nanut, Minh Tâm Tran, Violaine Bellée, Guillaume Max Pietrzyk, Pavol Stefko, Maria Vieites Diaz, Marie Theres Christin Bachmayer, Lino Ferreira Lopes, Matthieu Philippe Luther Marinangeli, Serhii Cholak, Veronica Sølund Kirsebom, Ettore Zaffaroni, Maria Elena Stramaglia, Surapat Ek-In, Ana Bárbara Rodrigues Cavalcante, Sara Celani, Carina Trippl, Thi Dung Nguyen, Alison Maria Tully, Mâu Chung Nguyên, Maarten Willibrord Uriël Van Dijk

A measurement of mixing and CP violation in neutral charm mesons is performed using data reconstructed in proton-proton collisions collected by the LHCb experiment from 2016 to 2018, corresponding to an integrated luminosity of 5.4 fb(-1). A total of 30.6 ...

2021

Measurement of the cross section for tt¯ production with additional jets and b jets in pp collisions at s√ = 13 TeV

Lesya Shchutska

Measurements of the cross section for the production of top quark pairs in association with a pair of jets from bottom quarks and in association with a pair of jets from quarks of any flavor or gluons and their ratio are presented. The data were collected ...

Springer Nature2020

Optics Designs of Final-Focus Systems for Future LHC Upgrades

José Luis Abelleira Fernández

EPFL2014

NLO QCD corrections in Herwig plus plus with MC@NLO

Paolo Torrielli

We present the calculations necessary to obtain next-to-leading order QCD precision with the Herwig++ event generator using the MC@NLO approach, and implement them for all the processes that were previously available from Fortran HERWIG with MC@NLO. We sho ...

Springer Nature2011