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15121por Ehlers, Raymond“…Jet substructure provides information about quantum chromodynamics (QCD) and plays an important role in the study of the evolution of the quark-gluon plasma. The ALICE experiment is uniquely suited to provide insight into the smallest splitting angles due to high efficiency in the reconstruction of charged particles. …”
Publicado 2021
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15122por Ganoti, Paraskevi“…In addition, having different masses, quantum numbers and quark content, hadronic resonances carry a wealth of information on different aspects of ion$-$ion collisions, including the processes that determine the shapes of particle momentum spectra, strangeness production, and the possible onset of collective effects in small systems. …”
Publicado 2021
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15123por Meyer-Conde, Marco“…Apart from the absolute cross-section measurements for both processes, COMPASS studies also the target spin (in)dependent azimuthal asymmetries in both channels. Assuming the valence quark-antiquark annihilation to be the main production mechanism, one can interpret the azimuthal asymmetries in terms of convolutions of pion and proton Transverse Momentum Dependent (TMD) Parton Distribution Functions (PDFs). …”
Publicado 2021
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15124por Wang, Xiaolin“…The LHCb detector is a single-arm forward spectrometer covering the pseudorapidity range 2 < 𝜂 < 5, designed for the study of particles containing bottom or charm quark. The study of exclusive vector meson photoproduction in ultra-peripheral lead-lead collisions is essential to understand physics at low Bjorken x. …”
Publicado 2022
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15125por Longo, R“…In the TMD framework of QCD it is predicted that the two naively time-reversal odd TMD PDFs, i.e. the quark Sivers functions and Boer-Mulders functions, have opposite sign when mea- sured in SIDIS or DY. …”
Publicado 2017
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15126por Krivos, Martin“…These include multiple measurements of jet production and structure, which probe the dynamics of the hot, dense Quark-Gluon Plasma formed in relativistic nucleus-nucleus collisions. …”
Publicado 2022
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15127por Sharma, Meenakshi“…Several other features that were observed in large collision systems and explained as due to collective phenomena related to the formation of the Quark Gluon Plasma (QGP) are also observed in small systems. …”
Publicado 2023
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15128por The ATLAS collaboration“…This is a collection of plots comparing Monte Carlo simulation of top quark pair events by the ATLAS and CMS experiments. …”
Publicado 2022
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15129por Das, Prottay“…These processes can be studied from the ratios of the yields of resonances to stable particles having same quark content, as a function of system size and comparing with model predictions with and without hadronic interactions.…”
Publicado 2023
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15130por The ATLAS collaboration“…Measurements of both the inclusive and differential production cross-sections of a top-quark-antiquark pair in association with a $W$ boson ($t\bar{t}W$) are presented. …”
Publicado 2023
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15131por Zuliani, Davide“…Namely, a Variational Quantum Classifier is trained and evaluated on fully simulated data of the LHCb experiment, in order to identify jets containing a hadron formed by a $b$ or $\bar{b}$ quark at the moment of production. The jet identification performance of the quantum classifier is compared with a Deep Neural Network using the same input features.…”
Publicado 2022
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15132por Rosano, Antonina“…Measurements of the production of resonances characterized by different lifetimes, masses, quark content, and quantum numbers can be used to explore the different mechanisms that influence the shape of particle momentum spectra, the dynamical evolution and lifetime of the hadronic phase, strangeness production, and collective effects. …”
Publicado 2022
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15133por Day-Hall, Henry“…The recoil of the Z-boson is sensitive to quark and gluon emissions and is used to determine the strong coupling constant in a novel approach. …”
Publicado 2023
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15134
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15135por Quast, G“…Altogether, in combination with measurements of the weak mixing angle at the SLC and the top quark mass at the Tevatron, these results provide stringent test of the Standard Model of the electroweak interaction and constrain its last missing parameter, the mass of the Higgs boson. (19 refs).…”
Publicado 2000
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15136por Kaczmarska, A“…This note presents an extension of a previous study on the expected performance of b-jet tagging in ATLAS experiment using low-pt electrons from semileptonic b-quark decays. Inner Detector and the EM Calorimeter information is used.The performance is evaluated in terms of the expected hadron rejection versus the electron identification efficiency and the expected suppression of background events versus the acceptance of signal events. …”
Publicado 1999
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15137“…More realistic performance figures for the detector and a measurement of the pattern recognition capabilities of the algorithms have been obtained from a further study with di-quark jets, including pile-up. The results obtained with the two algorithms, and the two layouts have been compared. …”
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15138“…We consider possible assignments for the D$_{s\J}^+(2632)$, which was recently reported in D$_s^+\eta$ and D$^0$K$^+$ final states by the SELEX Collaboration at Fermilab. The most plausible quark model assignment for this state is the first radial excitation ($2^3\S_1$) of the $c\bar s$ D$_s^*(2112)$, although the predicted mass and strong decay branching fractions for this assignment are not in agreement with the SELEX data. …”
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15139por Chung, Suh-Urk“…Both states are likely to be a tetra-quark, i.e. qq¯+qq¯or a gluonic hybrid, a qq¯object with an excited gluon inside it.Section 2 is devoted to a brief discussion of the central production of resonances, which is being investigated by both COMPASS and ALICE collaborations. …”
Publicado 2015
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15140por Eller, Philipp“…A standard model Higgs boson, radiated off by a leptonically decaying Z boson, is searched for in the b ¯b-quark decay mode by analyzing the full 7+8 TeV LHC dataset recorded with the CMS detector. …”
Publicado 2015
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