Accès ouvert
2022
article
OpenAlex
A. Tumasyan, W. Adam, J. W. Andrejkovic, T. Bergauer et autres
Proton-proton interactions resulting in final states with two photons are studied in a search for the signature of flavor-changing neutral current interactions of top quarks (t) and Higgs bosons (H). The analysis is based on data collected at a center-of-mass energy of …
am, at, be, kr, br
(code pays fourni par la source)
Accès ouvert
2021
article
OpenAlex
A. M. Sirunyan, A. Tumasyan, W. Adam, T. Bergauer et autres
The first measurement of the dependence of γγ→μ^{+}μ^{-} production on the multiplicity of neutrons emitted very close to the beam direction in ultraperipheral heavy ion collisions is reported. Data for lead-lead interactions at sqrt[s_{NN}]=5.02 TeV, with an integrated luminosity of approximately 1.5 …
am, at, be, br
(code pays fourni par la source)
Accès ouvert
2021
article
OpenAlex
A. M. Sirunyan, A. Tumasyan, W. Adam, F. Ambrogi et autres
Events where the two leading jets are separated by a pseudorapidity interval devoid of particle activity, known as jet-gap-jet events, are studied in proton-proton collisions at $\sqrt{s}=13\text{ }\text{ }\mathrm{TeV}$. The signature is expected from hard color-singlet exchange. Each of the highest transverse …
am, at, be, cn, fr
(code pays fourni par la source)
Accès ouvert
2021
article
OpenAlex
A.M. Sirunyan, A. Tumasyan, W. Adam, F. Ambrogi et autres
The CP -violating weak phase ϕ s and the decay width difference Δ Γ s between the light and heavy B s 0 mass eigenstates are measured with the CMS detector at the LHC in a sample of 48 500 reconstructed B …
am, at, be, by, cn, ru, ch, de
(code pays fourni par la source)
Accès ouvert
2020
article
OpenAlex
Albert M. Sirunyan, A. Tumasyan, W. Adam, F. Ambrogi et autres
Measurements of the second Fourier harmonic coefficient ( v 2 ) of the azimuthal distributions of prompt and nonprompt D 0 mesons produced in p p and p Pb collisions are presented. Nonprompt D 0 mesons come from beauty hadron decays. The …
am, at, be, by, br, bg
(code pays fourni par la source)
Accès ouvert
2020
article
OpenAlex
A. M. Sirunyan, A. Tumasyan, W. Adam, F. Ambrogi et autres
Abstract The ratios of the production cross sections between the excited ϒ(2S) and ϒ(3S) mesons and the ϒ(1S) ground state, detected via their decay into two muons, are studied as a function of the number of charged particles in the event. The …
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
Abstract A search for pair production of the supersymmetric partner of the top quark, the top squark, in proton-proton collision events at $$ \sqrt{s} $$ s = 13 TeV is presented in a final state containing hadronically decaying tau leptons and large …
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
Using a data sample of proton-proton collisions at s=13 TeV, corresponding to an integrated luminosity of 140 fb-1 collected by the CMS experiment in 2016–2018, the Bs0→X(3872)ϕ decay is observed. Decays into J/ψπ+π− and K+K- are used to reconstruct, respectively, the X(3872) …
am, at, be
(code pays fourni par la source)