Navegação Ciências Exatas e da Terra por Assunto "Aceleradores de partículas"
Resultados 1-20 de 688
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Accessing the strong interaction between baryons and charged kaons with the femtoscopy technique at the LHC
(2023) [Artigo de periódico]The interaction between baryons and kaons/antikaons is a crucial ingredient for the strangeness S = 0 and S = −2 sector of the meson–baryon interaction at low energies. In particular, the K might help in understanding the ... -
Alternate islands of multiple isochronous chains in wave-particle interactions
(2013) [Artigo de periódico]We analyze the dynamics of a relativistic particle moving in a uniform magnetic field and perturbed by a standing electrostatic wave. We show that a pulsed wave produces an infinite number of perturbative terms with the ... -
Analysis of the apparent nuclear modification in peripheral Pb–Pb collisions at 5.02 TeV
(2019) [Artigo de periódico]Charged -particle spectra at midrapidity are measured in Pb–Pb collisions at the centre-of-mass energy per nucleon–nucle on pair √sNN=5.02 TeV and presented in centrality classes ranging from most central (0–5%)to most ... -
Analysis of the CP structure of the Yukawa coupling between the Higgs boson and τ leptons in proton-proton collisions √s = 13 TeV
(2022) [Artigo de periódico]The first measurement of the CP structure of the Yukawa coupling between the Higgs boson and τ leptons is presented. The measurement is based on data collected in proton-proton collisions at √ s = 13 TeV by the CMS detector ... -
An embedding technique to determine ττ backgrounds in proton-proton collision data
(2019) [Artigo de periódico]An embedding technique is presented to estimate standard model ττ backgrounds from data with minimal simulation input. In the data, the muons are removed from reconstructed μμ events and replaced with simulated tau leptons ... -
Angular analysis of the decay B+ → K∗(892)+μ+μ− in proton-proton collisions at √s= 8 TeV
(2021) [Artigo de periódico]Angular distributions of the decay B+ → K∗(892)+μ+μ− are studied using events collected with the CMS detector in s√ = 8 TeV proton-proton collisions at the LHC, corresponding to an integrated luminosity of 20.0 fb−1. The ... -
Angular analysis of the decay B+ → K+ μ+ μ− in proton-proton collisions at √s = 8 TeV
(2018) [Artigo de periódico]The angular distribution of the flavor-changing neutral current decay B+ → K+ μ+ μ− is studied in proton-proton collisions at a center-of-mass energy of 8 TeV. The analysis is based on data collected with the CMS detector ... -
Anisotropic flow and flow fluctuations of identified hadrons in Pb–Pb collisions at √sNN = 5.02 TeV
(2023) [Artigo de periódico]The first measurements of elliptic flow of π ±, K±, p+¯p, K0 S , Λ+Λ, φ, Ξ − +Ξ + , and Ω − + Ω + using multiparticle cumulants in Pb–Pb collisions at √sNN = 5.02 TeV are presented. Results obtained with two- (v2{2}) and ... -
Anisotropic flow in Xe–Xe collisions at √sNN = 5.44 TeV
(2018) [Artigo de periódico]The first measurements of anisotropic flow coefficients vnfor mid-rapidity charged particles in Xe–Xe collisions at √sNN=5.44TeV are presented. Comparing these measurements to those from Pb–Pb collisions at √sNN=5.02TeV, ... -
Anisotropic flow of identified hadrons in Xe-Xe collisions at √sNN = 5.44 TeV
(2021) [Artigo de periódico]Measurements of elliptic (v2) and triangular (v3) flow coefficients of π ±, K±, p+p, K0 S , and Λ+Λ obtained with the scalar product method in Xe-Xe collisions at √ sNN = 5.44 TeV are presented. The results are obtained ... -
Anisotropic flow of identified particles in Pb-Pb collisions at √sNN = 5.02 TeV
(2018) [Artigo de periódico]The elliptic (v2), triangular (v3), and quadrangular (v4) ow coe cients of , K , p + p, + , K0 S, and the -meson are measured in Pb-Pb collisions at p sNN = 5:02TeV. Results obtained with the scalar product method are ... -
Anomalous evolution of the near-side jet peak shape in Pb-Pb collisions at √sNN=2.76 TeV
(2017) [Artigo de periódico]The measurement of two-particle angular correlations is a powerful tool to study jet quenching in a pT region inaccessible by direct jet identification. In these measurements pseudorapidity (Δη) and azimuthal (Δφ) differences ... -
(Anti-)deuteron production in pp collisions at √s=13 TeV
(2020) [Artigo de periódico]The study of (anti-)deuteron production in pp collisions has proven to be a powerful tool to investigate the formation mechanism of loosely bound states in high-energy hadronic collisions. In this paper the production of ... -
Azimuthal anisotropy of dijet events in PbPb collisions at √sNN = 5.02 TeV
(2023) [Artigo de periódico]The path-length dependent parton energy loss within the dense partonic medium created in lead-lead collisions at a nucleon-nucleon center-of-mass energy of √sNN = 5.02 TeV is studied by determining the azimuthal anisotropies ... -
Azimuthal anisotropy of heavy-flavor decay electrons in p-Pb collisions at √sNN=5.02 TeV
(2019) [Artigo de periódico]Angular correlations between heavy-flavor decay electrons and charged particles at midrapidity (|η| < 0.8) are measured in p-Pb collisions at √sNN p ¼ 5.02 TeV. The analysis is carried out for the 0%–20% (high) and 60%–100% ... -
Azimuthal correlations of heavy-flavor hadron decay electrons with charged particles in pp and p–Pb collisions at √sNN = 5.02 TeV
(2023) [Artigo de periódico]The azimuthal (ϕ) correlation distributions between heavy-flavor decay electrons and associated charged particles are measured in pp and p–Pb collisions at √sNN = 5.02 TeV. Results are reported for electrons with transverse ... -
Azimuthal correlations of prompt D mesons with charged particles in pp and p–Pb collisions at √sNN=5.02 TeV
(2020) [Artigo de periódico]The measurement of the azimuthal-correlation function of prompt D mesons with charged particles in pp collisions at √s = 5.02 TeV and p–Pb collisions at √sNN = 5.02 TeV with the ALICE detector at the LHC is reported. The ... -
Azimuthally differential pion femtoscopy in Pb-Pb collisions at √sNN = 2.76 TeV
(2017) [Artigo de periódico]We present the first azimuthally differential measurements of the pion source size relative to the second harmonic event plane in Pb-Pb collisions at a center-of-mass energy per nucleon-nucleon pair of sNN p ¼ 2.76 TeV. ... -
Azimuthally-differential pion femtoscopy relative to the third harmonic event plane in Pb–Pbcollisions at √sNN = 2.76 TeV
(2018) [Artigo de periódico]Azimuthally-differential femtoscopic measurements, being sensitive to spatio-temporal characteristics of the source as well as to the collective velocity fields at freeze out, provide very important information on the ... -
Azimuthal separation in nearly back-to-back jet topologies in inclusive 2- and 3-jet events in pp collisions at √s=13 TeV
(2019) [Artigo de periódico]A measurement for inclusive 2- and 3-jet events of the azimuthal correlation between the two jets with the largest transverse momenta, Δϕ12, is presented. The measurement considers events where the two leading jets are ...