“…Top quark pair events with additional photons in the final state are directly sensitive to the t¯tγ vertex. …”
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“…A Bayesian approach using binned maximum likelihood was used to set upper limits on the product of cross section and detector acceptance for excited-quark (q∗) production as a function of q∗ mass. At 95% credibility level (CL), the q∗ mass in the interval of 0.50 TeV < mq∗ < 1.62 TeV is excluded, extending the reach of previous experiments.…”
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“…The aim of the COMPASS hadron programme is to study the light-quark hadron spectrum, and in particular, to search for evidence of hybrids and glueballs. …”
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“…We present the results of a search for massive neutral bosons decaying via a top-antitop quark pair. The analysis is carried out using 4.7~fb$^{-1}$ of proton-proton collision data at a centre-of-mass energy of 7~TeV collected by the CMS detector at the LHC during 2011. …”
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“…The LHCb experiment will search for New Physics in $B_S$ mixing, notably through the measurement of the $B_s$ mixing phase $\phi_s$ from the time-dependent CP asymmetry in exclusive $B_s$ decays governed by the $b \to c\bar{c}s$ quark-level transition. The LHCb experiment will exploit a number of methods to measure the CKM angle $\gamma$ from $B \to DK$ tree decays, with the goal of reaching a precision comparable to the indirect determinations of $\gamma$ within the CKM model. …”
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“…This paper presents a brief overview of recent results from CMS at $\sqrt s$=2.76 TeV using hard probes to study quark and gluon matter in high-energy PbPb collisions. …”
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“…The search is sensitive to generic supersymmetry models provided superpartner particles are kinematically accessible and the final state is $b$-quark enriched, with minimal assumptions on properties of the lightest superpartner particle. …”
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“…Events with muons in the final state are an important signature for many physics topics at Large Hadron Collider (LHC), for instance, searches for Higgs boson production or new phenomena, measurements on the standard model processes like top-quark, W, Z production. Thus, efficient trigger on muons in data taking and understanding its performance are crucial to perform these physics studies. …”
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“…The measurement is performed in events with two leptons (electrons or muons) in the final state, and at least two jets where at least one is identified as originating from a b-quark. In addition the presence of missing transverse energy is required. …”
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“…The search is performed in a signal region that is binned in the scalar sum of the transverse energy of jets and the number of jets identified as originating from a bottom quark. No excess of events over the standard model expectation is found. …”
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“…The measurement is performed by means of a fit to the measured multiplicity distribution of $b$-tagged jets in a sample of dileptonic top quark pair candidate events with at least four reconstructed jets. …”
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“…In the heavy ion collisions the QCD processes are determining the properties of the Quark-Gluon Plasma which is created in the conditions of the extreme energy density. …”
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“…Events with muons in the final state are an important signature for many physics topics at Large Hadron Collider (LHC), for instance, searches for Higgs boson production or new phenomena, measurements on the standard model processes like top-quark, W, Z production. Thus, efficient trigger on muons in data taking and understanding its performance are crucial to perform these physics studies. …”
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“…The dominant process for charm production is the photon gluon fusion into a charm anti-charm quark pair. By using all deuteron statistics from COMPASS accumulated between 2002 and 2006, we extract double spin asymmetries in bins of the transverse momentum and the energy of the D$^{0}$ meson and we perform a leading order analysis of the data to extract the gluon polarization $<\Delta g/g>=-$0.49 $\pm$ 0.27 (stat) $\pm$ 0.11 (syst) at a QCD scale $\mu^{2}=$ 13 GeV$^{2}$ and at a gluon momentum fraction $< x >=$0.11.…”
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“…The jet is one of the probes allowing testing strong interaction theory predictions, QCD, and to extract physical properties from a particular state of nuclear matter : Quark Gluon Plasma (QGP). This PhD work is aimed to show ALICE capacities to measure jets coming from collisions produced at the Large Hadron Collider (LHC). …”
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“…Measurements include inclusive jet multiplicity, differential jet cross sections, as well as associated charm- and bottom-quark jet production.…”
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“…In order to be sensitive to a wide variety of possible signals beyond the standard model, we consider multiple search regions defined by the missing transverse energy, the hadronic energy, the number of jets and b-quark jets, and the transverse momenta of the leptons in the events. …”
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“…A brief introduction is given to the potential of the LHeC for the determination of the full set of quark distributions $xq(x,Q^2)$, $q=u_v,~d_v,~\bar{u},~\bar{d},~s,~\bar{s},~c,~b,~t$, and the measurement of the gluon distribution $xg(x,Q^2)$ for $x$ between about $10^{-6}$ to $1$ and $Q^2$ between $1$ and up to $10^6$\,GeV$^2$. …”
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“…The tentative program includes: 14:00-14:10 Jose Mariano Gago, Minister of Science and Technology in Portugal: Reminiscences of Maurice Jacob 14:10-14:30 Claude Cohen-Tannoudji: A few personal recollections of the time spent with Maurice at Ecole Normale Robert Pick: 1953-1967. 14 years with Maurice Jacob Memories and a overview 14:30-15:00 Peter Landshoff: Maurice the enthusiast 15:00-15:45 Cecilia Jarlskog: On the wings of Physics COFFEE BREAK 16:15-16:45 Helmut Satz: Making Quark Matter 16:45-17:15 Ulrich Heinz: From SPS to RHIC: Maurice and the CERN Heavy-Ion program 17:15-18:00 John Ellis: Physics with Maurice 18:30-19:30 Cocktail in the "Pas Perdu" …”
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“…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 of the proton. Differential cross sections are presented and compared to QCD predictions at NLO and NNLO.…”
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