“…Measurements of vectors bosons in association with heavy flavor, such as W+c and W+b production, have unique sensitivity to the heavy quark density functions of the proton. Differential cross sections are presented and compared to QCD predictions at NLO and NNLO.…”
Enlace del recurso

“…The confrontation of the predictions of a SU(5) FUT model with the top and bottom quark masses and other low-energy experimental constraints leads to a prediction of the light Higgs-boson mass in the rangeMh ∼ 121−126 GeV, in remarkable agreement with the discovery of the Higgs boson with a mass around ∼ 125.7 GeV. …”
Enlace del recurso

“…Measurements of electroweak boson production ($\gamma$, $\Wboson$/$\Zboson$) in heavy ion events provide a novel way to probe the properties of a quark-gluon plasma. Since these bosons do not interact with the strongly-coupled medium, measurements that combine their production yields with those from jets provide useful quantitative insights into the jet-quenching mechanism. …”
Enlace del recurso

“…Using b-tagging at trigger level will play a crucial role during the Run II data taking to ensure the Top quark, beyond the Standard Model and Higgs boson physics programme of the experiment. …”
Enlace del recurso

“…We will then highlight the significant role of secondary vertices in physics analyses, especially for the identification of jets coming from the hadronization of a b quark, fundamental in new particles and new physics searches. …”
Enlace del recurso
Enlace del recurso

“…A search for pair production of neutral color-octet weak-triplet scalar particles ($\Theta^{0}$) is performed in processes where one $\Theta^{0}$ decays to a pair of b-quark jets and the other to a Z boson plus a jet, with the Z boson decaying to a pair of electrons or muons. …”
Enlace del recurso

“…Helicty amplitudes are measured for the total angular momentum of the quark-antiquark system up to $J_{q\bar{q}} = 2$. …”
Enlace del recurso

“…Wide range of topics is covered: production cross section of inclusive W and Z decaying into e, μ, τ and b channels, differential Drell-Yan cross section, differential cross section of W and Z as a function of boson transverse momentum, Φ∗ and rapidity, production of W and Z in association with jets, production of W and Z in association with c and b quark, ratio of the W and Z cross sections in association with jets, forwardbackward asymmetry of Drell-Yan lepton pairs, lepton charge asymmetry in inclusive W production, weak mixing angle with the Drell-yan process, angular distributions in the decay of W and Z, electroweak production of dijets in association with a Z boson and others. …”
Enlace del recurso

“…The consistency of the top quark pair events produced with standard model (SM) correlated spins is tested in the muon+jets final state. …”
Enlace del recurso

“…much is known from the ATLAS/CMS SM articles about the performance of qcd tools (e.g. from the studies of W/Z+jets cross sections, top quark distributions, etc). A bit less is known about the efforts that are needed to ensure a proper description of backgrounds in the BSM searches or in Higgs studies. …”
Enlace del recurso

“…Baryon number density perturbations offer a possible route to experimentally measure baryon number susceptibilities and heat conductivity of the quark gluon plasma. We study the fluid dynamical evolution of local and event-by-event fluctuations of baryon number density, flow velocity and energy density on top of a (generalized) Bjorken expansion. …”
Enlace del recurso
Enlace del recurso

“…These include event-by-event pile-up subtraction algorithms for jets and missing ET, jet substructure, quark-gluon discrimination, and jet tagging tools for the identification of boosted heavy particles. …”
Enlace del recurso

“…A search for direct pair production of the supersymmetric partner of the top quark, decaying via a scalar tau to a nearly massless gravitino, has been performed using 20 fb−1 of proton–proton collision data at √s = 8 TeV. …”
Enlace del recurso

“…The effects of space-time geometry in the hadronization phase has been studied in the context of Bose-Einstein correlations between charged particles, for determining the size and shape of the source from which particles are emitted and for interpreting of quark confinement effects. Bose-Einstein correlation parameters are investigated in p-p collisions at 0.9 and 7 TeV, up to very high charged-particle multiplicities. …”
Enlace del recurso
Enlace del recurso

“…Principles of Modern Physics, divided into twenty one chapters, begins with quantum ideas followed by discussions on special relativity, atomic structure, basic quantum mechanics, hydrogen atom (and Schrodinger equation) and periodic table, the three statistical distributions, X-rays, physics of solids, imperfections in crystals, magnetic properties of materials, superconductivity, Zeeman-, Stark- and Paschen Back- effects, Lasers, Nuclear physics (Yukawa's meson theory and various nuclear models), radioactivity and nuclear reactions, nuclear fission, fusion and plasma, particle accelerators and detectors, the universe, Elementary particles (classification, eight fold way and quark model, standard model and fundamental interactions), cosmic rays, deuteron problem in nuclear physics, and cathode ray oscilloscope. …”
Enlace del recurso

“…The first hadron collider search for direct pair production of the supersymmetric partner of the top quark, decaying via a scalar tau to a nearly massless gravitino is performed using data from proton--proton collision at the Large Hadron Collider. …”
Enlace del recurso

“…The NA61/SHINE experiment at CERN is searching for the critical point in phase transition between quark-gluon plasma and hadronic matter. To do so we use the most precise apparatus - Time Projection Chamber. …”
Enlace del recurso

“…The data are used to determine 95\% confidence level upper limits on the product of production cross-sections and branching fractions for $m_{A}$ = [200,2000] GeV assuming gluon-fusion or b-quark-associated exclusive production. Results are also interpreted in the context of benchmark models for a two-Higgs doublet extension of the Standard Model (2HDM).…”
Enlace del recurso

“…The exploration of properties of an extreme state of matter, the Quark--Gluon Plasma, has broken new ground with the recent Run 2 operation of the Large Hadron Collider with heavy-ion collisions at the highest energy to date. …”
Enlace del recurso

“…Events with two leptons (${\rm e}$ or $\mu$) and at least four reconstructed jets, including at least two identified as b quark jets, in the final state are selected. The measured ratio is $0.022 \pm 0.003~{\rm (stat)} \pm0.006~{\rm (syst)}$ and cross section $ \sigma_{\rm t\bar{t}b\bar{b}} $ is $3.9 \pm 0.6~{\rm (stat)} \pm1.3~{\rm (syst)}$ pb and $ \sigma_{\rm t\bar{t}jj} $ is $176 \pm 5~{\rm (stat)} \pm 33~{\rm (syst)}$ pb in the full phase space. …”
Enlace del recurso