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20761por Dell'Asta, L“…The tau triggers provide many opportunities to study new physics beyond theStandard Model, and to determine if the 125 GeV resonance discovered by theLHC couples to tau leptons as would a Standard Model Higgs boson. …”
Publicado 2013
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20762por Tahir, N A, Schmidt, R, Brugger, M, Assmann, R, Shutov, A, Lomonosov, I V, Gryaznov, V, Piriz, A R, Udrea, S, Hoffmann, D H H, Fortov, V E, Deutsch, C“…A dedicated facility named High Radiation on Materials (HiRadMat) is being constructed at CERN to study the interaction of the 450 GeV protons generated by the Super Proton Synchrotron (SPS) with fixed solid targets of different materials. …”
Publicado 2009
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info:eu-repo/semantics/article -
20763
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20764por Zhang, Yanxi“…In the helicity frame, in the kinematic range 2 < $p_\mathrm{T}$ < 15 GeV/$c$, 2.0 < $y$ <4.5, $\lambda_\theta\simeq-0.2$ decreases (in absolute value) with the increase of $J/\psi$ transverse momentum and rapidity, which means that $J/\psi$ is slightly longitudinally polarized, while $\lambda_{\theta\phi}$ and $\lambda_\phi$ are consistent with zero within errors. …”
Publicado 2013
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20765por Friedrich, Jan Michael“…The principal characteristic of Primakoff events is extremely small momentum transfer to the target nucleus, below $10^{-3}$\,GeV$^2/c^2$. Their reconstruction requires detectors for the charged and neutral particles at the limit of the physical feasibility. …”
Publicado 2013
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20766por Matti J. Kortelainen“…No significant evidence of signal wasobserved, and an upper limit of 2–3 % was established on the branching fraction ℬ (t → H+ b) atthe 95 % confidence level for charged Higgs boson masses between 80 and 160 GeV/𝑐2 , with theassumption that ℬ (H+ → τν) = 1. …”
Publicado 2013
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20767por Ferretto Parodi, Andrea“…The measured production cross section for a $b$-hadron with $p_T>9$ GeV and $|\eta|<2.5$ is $32.7 \pm 0.8 (\mbox{stat.}) ^{+4.5}_{-6.8} (\mbox{syst.}) \,\,\mu\mbox{b}$, higher than the next-to-leading-order QCD predictions but consistent within the experimental and theoretical uncertainties. …”
Publicado 2013
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20768por Rosenthal, Oliver“…. \\ The final result of the \ttg cross section in the non full hadronic decay channels with a transverse mometum of the prompt photon above 20\,GeV and a pseudorapidity of $|\eta|<2.37$ as well as the cuts used in the signal generation reads: \begin{equation*} \sigma_{t\bar{t}\gamma}\times\text{BR}=\left[1.11\pm0.15(\text{stat.})^{+0.25}_{-0.21}(\text{syst.})…”
Publicado 2013
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20769por Adolph, Christoph“…For the measurement of transverse spin effects a 160 GeV =c polarized + beam is scattered off a polarized nucleon target. …”
Publicado 2014
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20770por Moles-Valls, Regina“….) ± 0.42 (JSF) ± 1.67 (syst.) GeV. The total uncertainty is dominated by the systematic contribution. …”
Publicado 2014
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20771por Held, Hauke“…No significant excess of signal events is observed and upper CLs 95% confidence level exclusion limits are calculated relative to the Standard Model prediction for different Higgs boson trial masses m(H): m(H) [GeV/c2] 110 115 120 125 130 135 CLs expected 4.66 5.05 6.13 7.22 8.94 10.9 CLs observed 4.45 6.33 6.65 7.49 8.95 11.6 The analysis is performed twice, based on different reconstruction techniques of the H ! …”
Publicado 2014
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20772por Proissl, Manuel“…For a Higgs boson mass of 125.36 GeV, the observed (expected) deviation from the background-only hypothesis is found with a significance of 1.4~(2.6) standard deviations and a signal strength is determined to be $\hat{\mu}_{VH}$ = 0.52 $\pm$ 0.32(stat.) …”
Publicado 2015
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20773por Gaggero, Daniele, Grasso, Dario, Marinelli, Antonio, Urbano, Alfredo, Valli, Mauro“…Designed to reproduce both Fermi-LAT gamma-ray data and local CR observables, this model offers for the first time a self-consistent picture of both the GeV and the TeV sky.…”
Publicado 2015
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20774por Long, Jonathan David“…This corresponds to a measured signal strength, the ratio of the measured to expected cross section times branching ratio, for a Standard Model Higgs boson with $m_H=125.36$ GeV of $\mu=1.09^{+0.16}_{-0.15} (\text{stat.})\,^{+0.17}_{-0.14} (\text{syst.})$. …”
Publicado 2015
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20775por Debenedetti, Chiara“…The full LHC Run1 dataset result for the $VH(b\bar{b})$ process is a limit of $(1.3)1.4 \times$ SM (expected) observed, with a best fit value of $0.2\pm0.5\mathrm{(stat)}\pm0.4\mathrm{(sys)}$ for a Higgs boson of $125$ GeV mass.…”
Publicado 2015
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20776por Trovatelli, Monica“…A binned maximum likelihood fit was used to extract the signal yield as observed in data, and to compare the results obtained with the two analysis approaches with the SM expectations for a Higgs boson of mass m$_H$ = 125 GeV. It is shown that the usage of the MVA approach improved the analysis sensitivity of $\approx$40%. …”
Publicado 2015
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20777por Cavaliere, Viviana, Adelman, J., Albicocco, P., Alison, J., Ancu, L.S., Anderson, J., Andari, N., Andreani, A., Andreazza, A., Annovi, A., Antonelli, M., Asbah, N., Atkinson, M., Baines, J., Barberio, E., Beccherle, R., Beretta, M., Bertolucci, F., Biesuz, N.V., Blair, R., Bogdan, M., Boveia, A., Britzger, D., Bryant, P., Burghgrave, B., Calderini, G., Camplani, A., Cavasinni, V., Chakraborty, D., Chang, P., Cheng, Y., Citraro, S., Citterio, M., Crescioli, F., Dawe, N., Dell'Orso, M., Donati, S., Dondero, P., Drake, G., Gadomski, S., Gatta, M., Gentsos, C., Giannetti, P., Gkaitatzis, S., Gramling, J., Howarth, J.W., Iizawa, T., Ilic, N., Jiang, Z., Kaji, T., Kasten, M., Kawaguchi, Y., Kim, Y.K., Kimura, N., Klimkovich, T., Kolb, M., Kordas, K., Krizka, K., Kubota, T., Lanza, A., Li, H.L., Liberali, V., Lisovyi, M., Liu, L., Love, J., Luciano, P., Luongo, C., Magalotti, D., Maznas, I., Meroni, C., Mitani, T., Nasimi, H., Negri, A., Neroutsos, P., Neubauer, M., Nikolaidis, S., Okumura, Y., Pandini, C., Petridou, C., Piendibene, M., Proudfoot, J., Rados, P., Roda, C., Rossi, E., Sakurai, Y., Sampsonidis, D., Saxon, J., Schmitt, S., Schoening, A., Shochet, M., Shojaii, S., Soltveit, H., Sotiropoulou, C.L., Stabile, A., Swiatlowski, M., Tang, F., Taylor, P.T., Testa, M., Tompkins, L., Vercesi, V., Volpi, G., Wang, R., Watari, R., Webster, J., Wu, X., Yorita, K., Yurkewicz, A., Zeng, J.C., Zhang, J., Zou, R.“…The Fast TracKer (FTK) is part of the ATLAS trigger upgrade project; it is a hardware processor that will provide every Level-1 accepted event (100 kHz) and within 100$\mu$s, full tracking information for tracks with momentum as low as 1 GeV. Providing fast, extensive access to tracking information, with resolution comparable to the offline reconstruction, FTK will help in precise detection of the primary and secondary vertices to ensure robust selections and improve the trigger performance.…”
Publicado 2015
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20778por Weuste, Lars“…The resulting data is compared to simulation obtained with three different hadronic shower physics models of the \geant~simulation toolkit: QGSP_BERT, QGSP_BERT_HP and QBBC. The results from 60GeV high statistics run show that QBBC and QGSP_BERT_HP are mostly consistent with the testbeam data, while QBBC, which is lacking a sophisticated treatment of neutrons, overestimates the late energy depositions. …”
Publicado 2015
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20779por Craik, Daniel“…In $B^0_s \to \bar{D}^0 K^-\pi^+$ decays, an excess at $m(\bar{D}^0 K^-) \approx 2.86 {\rm GeV}/c^2$ is found to be an admixture of spin-1 and spin-3 resonances. …”
Publicado 2016
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20780por Queitsch-Maitland, Michaela“…The fiducial $pp \rightarrow H \rightarrow \gamma\gamma$ cross section for $m_{H}=125.4$ GeV was measured at ${\sqrt{s}=8}$ TeV with 20.3 fb$^{-1}$ of proton-proton collision data collected by the ATLAS detector. …”
Publicado 2016
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