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20401por Anchordoqui, Luis A, Antoniadis, Ignatios, Goldberg, Haim, Huang, Xing, Lüst, Dieter, Taylor, Tomasz R“…It reveals an excess in the dijet mass range 150 GeV/c^2, 4.1\sigma beyond SM expectations. We show that in the context of low-mass string theory this excess can be associated with the production and decay of a leptophobic Z', a singlet partner of SU(3) gluons coupled primarily to baryon number. …”
Publicado 2011
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20402por Mac Raighne, A, Gersabeck, M, Crossley, M, Alianelli, L, Lozano, M, Dumps, R, Fleta, C, Collins, P, Rodrigues, E, Sawhney, K J S, Tlustos, L, Pennicard, D, Buytaert, J, Stewart, G, Parkes, C, Eklund, L, Campbell, M, Marchal, J, Akiba, K, Pellegrini, G, Llopart, X, Plackett, R, Maneuski, D, Gligorov, V V, Tartoni, N, Nicol, M, Bates, R, Gallas, A, Gimenez, E N, van Beuzekom, M, John, M“…Two complementary characterisation techniques are discussed: the first uses a custom built telescope and a 120GeV pion beam from the Super Proton Synchrotron (SPS) at CERN; the second employs a novel technique to illuminate the sensor with a micro-focused synchrotron X-ray beam at the Diamond Light Source, UK. …”
Publicado 2011
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20403por Tahir, N A, Schmidt, R, Deutsch, C, Gryaznov, V, Lomonosov, I V, Shutov, A, Piriz, A R, Fortov, V E, Geissel, H, Redmer, R“…The beams for the LHC are pre-accelerated in the SPS (Super Proton Synchrotron) to 450 GeV/c and transferred to LHC via two beam lines. …”
Publicado 2011
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20404por Kono, T“…During the data taking period from 2009 until 2011, the ATLAS TDAQ system has been used very successfully to collect proton-proton data at LHC centre-of-mass energies between 900 GeV and 7 TeV. The TDAQ system is mostly made of off-the-shelf processing units organized in a farm of 2000 elements. …”
Publicado 2012
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20405por Kono, T“…During the data-taking period from 2009 until 2011, the ATLAS TDAQ system has been used very successfully to collect proton-proton data at LHC centre-of-mass energies between 900 GeV and 7 TeV. The TDAQ system is mostly made of off-the-shelf processing units organized in a farm of 2000 elements. …”
Publicado 2012
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20406por Kwee, Regina Esther“…Centrally produced charged particles were considered with a pseudorapidity |eta| < 0.8 and a transverse momentum of pT > 0.5 or 1 GeV. Four characteristic distributions were measured at two centre-of-mass energies of sqrt{s} = 0.9 and 7 TeV. …”
Publicado 2012
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20407por Stanecka, E“…The TRT is made of 300000 straw-tubes providing on average 30 two-dimensional space points with ~130 µm resolution for charged particle tracks with |η| < 2 and pT > 0.5 GeV. Along with continuous tracking, the TRT provides electron identification capability through the detection of transition radiation X-ray photons. …”
Publicado 2012
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20408por Alexander, Michael Thomas“…A resolution of < 36 microns on the x and y components of impact parameter measurements is measured for particles with pT > 1 GeV. The final dataset on which yCP and AGamma are measured comprises 28.0 +/- 2.8 pb-1 , from which 226,110 D0->Kpi and 30,481 D0->KK candidates are selected. …”
Publicado 2012
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20409por Palladino, V“…The European accelerator neutrino community submitted end of July 2012 to the European Strategy in Particle Physics (ESPP) 2012 Symposium its proposal of the next global accelerator neutrino () facility for Europe to build or help build (NEu2012 D3.3.1): a new giant European underground home for mega detectors in Finland 2300 Km from CERN, served by MW CERN beams, ultimately a 10 GeV Neutrino Factory. Early in 2013, NEu2012 D3.2.1 documented further the analysis of performance and physics potential of upgrades and/or of major additions to existing neutrino facilities as evaluated in the NEu2012 years. …”
Publicado 2013
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20410por Baechler, J, Antchev, G, Aspell, P, Atanassov, I, Avati, V, Berardi, V, Berretti, M, Bossini, E, Bozzo, M, Brogi, P, Brücken, E, Buzzo, A, Cafagna, F, Calicchio, M, Catanesi, M.G, Covault, C, Csörgö, T, Deile, M, Eggert, K, Eremin, V, Ferretti, R, Ferro, F, Fiergolski, A, Garcia, F, Giani, S, Greco, V, Grzanka, L, Heino, J, Hilden, T, Intonti, M.R, Kaspar, J, Kopal, J, Kundrat, V, Kurvinen, K, Lami, S, Latino, G, Lauhakangas, R, Leszko, T, Lippmaa, E, Lokajicek, M, Lo Vetere, M, Lucas Rodriguez, F, Macri, M, Magaletti, L, Mercadante, A, Minafra, N, Minutoli, S, Nemes, F, Niewiadomski, H, Oliveri, E, Oljemark, F, Orava, R, Oriunno, M, Österberg, K, Palazzi, P, Prochazka, J, Quinto, M, Radermacher, E, Radicioni, E, Ravotti, F, Robutti, E, Ropelewski, L, Ruggiero, G, Saarikko, H, Sanguinetti, G, Santroni, A, Scribano, A, Snoeys, W, Sziklai, J, Taylor, C, Turini, N, Vacek, V, Vitek, M, Welti, J, Whitmore, J“…=90m, allowing TOTEM to measure the elastic scattering differential cross-section, down to the four-momentum transfer squared |t|=2x10^-^2GeV^2. Using the optical theorem and extrapolation of the differential cross-section to t=0 (optical point), the total p-p cross-section at the LHC energy of s=7TeV could be computed for the first time. …”
Publicado 2013
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20411por Charitonidis, Nikolaos“…Values of up to 1.5 m/s for a proton bunch intensity of 2.94 10^{11} at 440 GeV were observed. A theoretical model of the behavior of the target after the impact of the beam has been developed, and is found to be in good agreement with the experimental data. …”
Publicado 2014
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20412por Besjes, Geert Jan“…Using Bayesian sampling, the best-fit point obtained corresponds to a squark mass of 2.3 TeV, a gluino mass of 2.1 TeV and a 130 GeV neutralino with a spin-independent cross-section of $2.4\times 10^{10} \mathrm{pb}$, which is within the reach of future multi-ton scale direct dark matter detection experiments and of the next LHC run. …”
Publicado 2015
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20413Hadron-pair production on transversely polarized targets in semi-inclusive deep inelastic scatteringpor Braun, Christopher“…The resulting experimental challenge is the reason why f q 1 ( x ) and g q 1 ( x ) have been investigated for almost four decades, while h q 1 ( x ) is still subject to recent measurements and analyses. The 160 GeV =c polarized muon beam of CERN’s M2 beamline allows the COMPASS ex- periment to investigate spin effects using polarized solid-state targets. …”
Publicado 2015
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20414por Plassard, Fabien“…It was conducted under the 500 GeV e-e+ International Linear Collider (ILC) study and focused on the design and performance optimization of the Final Focus System (FFS). …”
Publicado 2015
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20415por Vilsmeier, D“…Measuring the transverse beam size in the Large Hadron Collider by using Ionization Profile Monitors is a difficult task for energies above injection during the energy ramp from 450 GeV to 6.5TeV. The beam size decreases from around 1mm to 200um and the brightness of the beam is high enough to destroy the structure of any form of interacting matter. …”
Publicado 2015
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20416por Duda, Dominik“…Its large mass of $173.34\GeV$ is unexplained and suggests that the top-quark may play a special role in nature, as it occurs in many beyond the Standard Model predictions. …”
Publicado 2015
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20417por Zangoli, Maria“…The values of the production asymmetries, integrated in the ranges $4 < p_\mathrm{T} < 30$ GeV/c and $2.5<\eta<4.5$, are determined to be: \begin{equation} A_\mathrm{P}(\B^0)= (-1.00\pm0.48\pm0.29)\%,\nonumber \end{equation} \begin{equation} A_\mathrm{P}(\B^0_s)= (\phantom{-}1.09\pm2.61\pm0.61)\%,\nonumber \end{equation} where the first uncertainty is statistical and the second is systematic. …”
Publicado 2015
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20418por Dalla Brida, Mattia, Fritzsch, Patrick, Korzec, Tomasz, Ramos, Alberto, Sint, Stefan, Sommer, Rainer“…This implies the need for matching both schemes at an intermediate switching scale, $L_{\rm swi}$, which we choose roughly in the range 2-4 GeV. In this contribution we present a preliminary result for this matching procedure, and we then focus on our almost final results for the scale evolution of the SF coupling from $L_{\rm swi}$ towards the perturbative regime, where we extract the $N_{\rm f} = 3$ ${\Lambda}$-parameter, ${\Lambda}_{\overline{\rm MS}}^{N_{\rm f}=3}$, in units of $L_{\rm swi}$ . …”
Publicado 2015
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20419por Belloni, F, Andriamonje, S, Berthoumieux, E, Calviani, M, Chiaveri, E, Colonna, N, Giomataris, Y, Guerrero, C, Gunsing, F, Iguaz, F J, Kebbiri, M, Pancin, J, Papaevangelou, T, Tsinganis, A, Vlachoudis, V, Altstadt, S, Andrzejewski, J, Audouin, L, Barbagallo, M, Bécares, V, Bečvář, F, Billowes, J, Boccone, V, Bosnar, D, Brugger, M, Calviño, F, Cano-Ott, D, Carrapiço, C, Cerutti, F, Chiaveri, E, Chin, M, Cortés, G, Corté-Giraldo, M A, Diakaki, M, Domingo-Pardo, C, Duran, I, Dzysiuk, N, Eleftheriadis, C, Ferrari, A, Fraval, K, Ganesan, S, García, A R, Giubrone, G, Gómez-Hornillos, M B, Gonçalves, I F, González-Romero, E, Griesmayer, E, Gurusamy, P, Jenkins, D G, Jericha, E, Kadi, Y, Käppeler, F, Karadimos, D, Koehler, P, Kokkoris, M, Krtička, M, Kroll, J, Langer, C, Lederer, C, Leeb, H, Leong, L S, Losito, R, Manousos, A, Marganiec, J, Marítnez, T, Massimi, C, Mastinu, P F, Mastromarco, M, Meaze, M, Mendoza, E, Mengoni, A, Milazzo, P M, Mingrone, F, Mirea, M, Mondalaers, W, Paradela, C, Pavlik, A, Perkowski, J, Plompen, A J M, Praena, J, Quesada, J M, Rauscher, T, Reifarth, R, Riego, A, Roman, F, Rubbia, C, Sarmento, R, Schillebeeckx, P, Schmidt, S, Tagliente, G, Tain, J L, Tarrío, D, Tassan-Got, L, Valenta, S, Vannini, G, Variale, V, Vaz, P, Ventura, A, Versaci, R, Vermeulen, M J, Vlastou, R, Wallner, A, Ware, T, Weigand, M, Weiss, C, Wright, T J, Žugec, P“…The n\_TOF facility at CERN provides a white neutron beam (from thermal up to GeV neutrons) for neutron induced cross section measurements. …”
Publicado 2014
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20420“…The FCC study also includes the design of a 90-350 GeV high-luminosity lepton collider (FCC-ee) installed in the same tunnel, serving as Higgs, top and Z factory, as a potential intermediate step, as well as an electron-proton collider option (FCC-he). …”
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