Accès ouvert
2024
article
OpenAlex
A. Hayrapetyan, A. Tumasyan, W. Adam, Janik Walter Andrejkovic et autres
A bstract A search for long-lived heavy neutral leptons (HNLs) is presented, which considers the hadronic final state and coupling scenarios involving all three lepton generations in the 2–20 GeV HNL mass range for the first time. Events comprising two leptons (electrons …
am, at, in, be, fr, us, Égypte, br
(code pays fourni par la source)
Accès ouvert
2020
article
OpenAlex
A. M. Sirunyan, A. Tumasyan, W. Adam, F. Ambrogi et autres
A search is conducted for a low-mass charged Higgs boson produced in a top quark decay and subsequently decaying into a charm and a strange quark. The data sample was recorded in proton-proton collisions at $\sqrt{s}=13\text{ }\text{ }\mathrm{TeV}$ by the CMS experiment …
am, at, be
(code pays fourni par la source)
Accès ouvert
2020
article
OpenAlex
A. M. Sirunyan, A. Tumasyan, W. Adam, F. Ambrogi et autres
Ratios of cross sections, $\ensuremath{\sigma}(Z+c\text{ }\text{ }\text{jets})/\ensuremath{\sigma}(Z+\text{jets})$, $\ensuremath{\sigma}(Z+b\text{ }\text{ }\text{jets})/\ensuremath{\sigma}(Z+\text{jets})$, and $\ensuremath{\sigma}(Z+c\text{ }\text{ }\text{jets})/\phantom{\rule{0ex}{0ex}}\ensuremath{\sigma}(Z+b\text{ }\text{ }\text{jets})$ in the associated production of a $Z$ boson with at least one charm or bottom quark jet are measured in proton-proton collisions at $\sqrt{s}=13\text{ }\text{ }\mathrm{TeV}$. …
am, at, be, br
(code pays fourni par la source)
Accès ouvert
2020
article
OpenAlex
A. M. Sirunyan, A. Tumasyan, W. Adam, F. Ambrogi et autres
The first search for supersymmetry in events with an experimental signature of one soft, hadronically decaying $\ensuremath{\tau}$ lepton, one energetic jet from initial-state radiation, and large transverse momentum imbalance is presented. These event signatures are consistent with direct or indirect production of …
am, at, be, br
(code pays fourni par la source)
Accès ouvert
2019
article
OpenAlex
A. M. Sirunyan, A. Tumasyan, W. Adam, F. Ambrogi et autres
Results are reported from a search for new particles that decay into a photon and two gluons, in events with jets. Novel jet substructure techniques are developed that allow photons to be identified in an environment densely populated with hadrons. The analyzed …
am, at, be, us, br
(code pays fourni par la source)
Accès ouvert
2019
article
OpenAlex
A. M. Sirunyan, A. Tumasyan, W. Adam, F. Ambrogi et autres
Abstract A search for the standard model Higgs boson produced in association with a W or a Z boson and decaying to a pair of τ leptons is performed. A data sample of proton-proton collisions collected at $$ \sqrt{s} $$ s = …
am, at, be
(code pays fourni par la source)
Accès ouvert
2019
article
OpenAlex
A. M. Sirunyan, A. Tumasyan, W. Adam, F. Ambrogi et autres
Abstract A search for new particles has been conducted using events with two high transverse momentum τ leptons that decay hadronically and at least two energetic jets. The analysis is performed using data from proton-proton collisions at $$ \sqrt{s}=13 $$ s = …
am, at, be
(code pays fourni par la source)
Accès ouvert
2019
article
OpenAlex
A. M. Sirunyan, A. Tumasyan, W. Adam, F. Ambrogi et autres
A search for pair production of second-generation leptoquarks is performed using proton-proton collision data collected at $\sqrt{s}=13\text{ }\text{ }\mathrm{TeV}$ in 2016 with the CMS detector at the CERN LHC, corresponding to an integrated luminosity of $35.9\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$. Final states with two …
am, at, be, us
(code pays fourni par la source)
Accès ouvert
2019
article
OpenAlex
A. M. Sirunyan, A. Tumasyan, W. Adam, F. Ambrogi et autres
quarks are used. These measurements characterize, for the first time, properties of the underlying event in top quark pair production and show no deviation from the universality hypothesis at energy scales typically above twice the top quark mass.
am, at, by, be, us
(code pays fourni par la source)
Accès ouvert
2018
article
OpenAlex
A. M. Sirunyan, A. Tumasyan, W. Adam, F. Ambrogi et autres
lepton.
am, at, be
(code pays fourni par la source)
Accès ouvert
2018
article
OpenAlex
A. M. Sirunyan, A. Tumasyan, W. Adam, F. Ambrogi et autres
The elliptic azimuthal anisotropy coefficient (${v}_{2}$) is measured for charm (${D}^{0}$) and strange (${K}_{S}^{0}$, $\mathrm{\ensuremath{\Lambda}}$, ${\mathrm{\ensuremath{\Xi}}}^{\ensuremath{-}}$, and ${\mathrm{\ensuremath{\Omega}}}^{\ensuremath{-}}$) hadrons, using a data sample of $p+\mathrm{Pb}$ collisions collected by the CMS experiment, at a nucleon-nucleon center-of-mass energy of $\sqrt{{s}_{\mathrm{NN}}}=8.16\text{ }\text{ }\mathrm{TeV}$. A significant …
am, at, be, us
(code pays fourni par la source)
Accès ouvert
2017
article
OpenAlex
A. M. Sirunyan, A. Tumasyan, W. Adam, E. Asilar et autres
The relative modification of the prompt $\ensuremath{\psi}(2S)$ and $J/\ensuremath{\psi}$ yields from $pp$ to PbPb collisions, at the center-of-mass energy of 5.02 TeV per nucleon pair, is presented. The analysis is based on $pp$ and PbPb data samples collected by the CMS experiment …
am, at, be
(code pays fourni par la source)