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4061por CMS Collaboration“…Limits are also derived for a broad $\rm{Z}^\prime$ resonance with 10\% width and a Kaluza-Klein excitation of the gluon in the Randall-Sundrum model. …”
Publicado 2015
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4062por Braren, Früd“…Present-day measurements of the signal strength of the Higgs-boson production mode vector boson fusion tend to suffer from large theoretical uncertainties on the gluon fusion contamination in the vector boson fusion selection. …”
Publicado 2015
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4063por Natsuume, Makoto“…In recent years, it has been shown that one prediction of AdS/CFT is indeed close to the experimental result of the real quark–gluon plasma. Since then, the AdS/CFT duality has been applied to various fields of physics; examples are QCD, nuclear physics, condensed-matter physics, and nonequilibrium physics. …”
Publicado 2015
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4064por Velicanu, Dragos Alexandru“…Jet quenching is one of the established signatures of the Quark Gluon Plasma, and this phenomenon has been studied extensively in high energy heavy ion experiments over the last decade. …”
Publicado 2015
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4065por CMS Collaboration“…However, it can also be interpreted in terms of initial state effects arising from gluon saturation. The pseudorapidity dependence of the azimuthal Fourier coefficients ($v_n$) is expected to be sensitive to the underlying mechanism with, in the hydrodynamic picture, the longer lifetime of the fireball on the Pb-going side expected to lead to a larger flow signal than found on the p-going side. …”
Publicado 2015
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4066por CMS Collaboration“…The angular distribution of charged particle momenta in relative pseudorapidity ($\Delta \eta$) and relative azimuth ($\Delta \phi$) with respect to a sample of high transverse momentum dijets is utilized to study the momentum balance of jet fragments in heavy-ion collisions, which is potentially modified due to jet quenching in the Quark Gluon Plasma. This analysis compares the contributions of charged particles of different transverse momenta to study the overall event energy balance in PbPb versus pp collisions using data collected in 2011 and 2013, respectively, at collision energies $\sqrt{\rm s_{NN}} = 2.76$ TeV with integrated luminosities of 166 $\mu \rm{b}^{-1}$ and 5.3 pb$^{-1}$. …”
Publicado 2015
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4067por Bellini, Francesca“…The analysis is motivated by the interest in the measurement of short-lived resonances production that can provide insights on the properties of the medium produced in heavy-ion collisions both during its partonic (Quark-Gluon Plasma) and hadronic phase. This particular analysis exploits particle identification of the ALICE Time-Of-Flight detector. …”
Publicado 2015
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4068por Masetti, Lucia“…Single top quark events are used to probe for anomalous couplings between the top quark and the light quarks and gluons. In addition, a new measurement using the 2011 ATLAS dataset is presented, where measurements of the different decay rates in single top quark events are used to set limits on potential anomalous couplings at the Wtb vertex.…”
Publicado 2016
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4069por Kour, Ravjeet“…ALICE has been designed as a general-purpose heavy-ion detector in order to explore phenomena of strong interacting matter and the quark-gluon plasma (QGP) at extreme values of energy density and temperature in nucleus-nucleus collisions. …”
Publicado 2016
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4070por Pandini, Carlo Enrico“…The data are used to determine 95% confidence level upper limits on the product of production cross-sections and branching fractions, σ(pp → A)·BR(A → Zh)·BR(h → bb) for mA = [200,2000] GeV assuming gluon-fusion or b-quark-associated exclusive production. …”
Publicado 2016
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4071Measurements of Upsilon meson suppression in heavy ion collisions with the CMS experiment at the LHCpor Filipovic, Nicolas“…Measurements of Upsilon suppression in ultra relativistic heavy ion collisions are key to understanding the hot and deconfined phase of matter called Quark-Gluon Plasma (QGP). The cross section of Upsilon states Y(nS) are measured in proton-proton collisions and in lead-lead collisions at the centre-of-mass energy of 2.76 TeV per nucleon pair. …”
Publicado 2016
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4072por van der Deijl, Pieter“…Protons are composite particles , consisting of particles called quarks and gluons, together referred to as partons. The interesting part of proton collisions for physics analysis is usually caused by only one pair of partons. …”
Publicado 2016
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4073por CMS Collaboration“…The impact of the measured cross sections constraining the gluon distribution in the proton is demonstrated in a fit of parametrized parton distribution functions to the data.…”
Publicado 2016
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4074por The ATLAS collaboration“…Two selection strategies to search for the supersymmetric partners of quarks and gluons (squarks and gluinos) in final states containing hadronic jets, missing transverse momentum but no electrons or muons are presented. …”
Publicado 2016
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4075por Bicker, Karl“…The light-meson spectrum is an important ingredient to understand quantum chromodynamics, the theory of strong interaction at low energies, where quarks and gluons are confined into hadrons. However, measuring this spectrum experimentally is very challenging, due to the large number of overlapping resonances it contains. …”
Publicado 2016
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4076“…Today's Standard Model, though still incomplete in many respects, is the culmination of the most successful theory of the Universe to date, and it is built upon foundations provided by discoveries made by Nambu in the 1960s: the mechanism of spontaneously broken symmetry in Nature (with G Jona-Lasinio) and the hidden new SU(3) symmetry of quarks and gluons (with M-Y Han). In this volume honoring Nambu's memory, World Scientific Publishing presents a unique collection of papers written by his former colleagues, collaborating researchers and former students and associates, not only citing Nambu's great contributions in physics but also many personal and private reminiscences, some never told before. …”
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4077por Park, Jaebeom“…The bottomonium is one of the cleanest probes to study the characteristics of the quark-gluon plasma (QGP) as they are produced at the early stage of collision through hard scattering. …”
Publicado 2016
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4078por The ATLAS collaboration“…These measurements should be sensitive to the strength and mechanism for jet quenching in the quark-gluon plasma created in the aftermath of ultra-relativistic collisions between two nuclei. …”
Publicado 2017
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4079por Shimmin, Chase Owen“…As a benchmark scenario, we consider the case where large-radius jets originating from a boosted Z' decay are discriminated from a background of nonresonant quark and gluon jets. We show that in the presence of systematic uncertainties on the background rate, our adversarially-trained, decorrelated tagger considerably outperforms a conventionally trained neural network, despite having a slightly worse signal-background separation power. …”
Publicado 2017
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4080por The ATLAS collaboration“…A search for the supersymmetric partners of quarks and gluons (squarks and gluinos) in final states containing hadronic jets and missing transverse momentum, but no electrons or muons, are presented. …”
Publicado 2017
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