1,721,553 research outputs found
Inclusive Jets and Dijets in LHCb
No full textThe region eta > 3 is a kinematic range of interest for Higgs searches, QCD physics and beyond the Standard Model studies in pp interactions at TeV energies. We explore the feasibility of measuring jets in the LHCb experiment, mainly devoted to precision measurements in the b-physics domain, but covering the very forward region 2 < ́ < 4.5. The jets reconstruction capabilities of LHCb are presented, together with some preliminary results on inclusive jets and dijets that show the potential interest of LHCb results for low-x/high-Q2 perturbative QCD tests. The data have been taken at LHC during the 2010 runs at squareroot(s) = 7 TeV.
1Conferenc
EXPERIMENTAL DETERMINATION OF THE TOWNSEND COEFFICIENT FOR ARGON-CO(2) GAS MIXTURES AT HIGH FIELDS
No full textMuon Astronomy With the Macro Detector
No full textWe have analyzed a sample of 1.8 x 10(6) muons with E(mu) greater-than-or-similar-to 1.3 TeV collected by the first and second supermodules of the MACRO detector at Gran Sasso during the period 1989 February to 1991 February. We have searched for an excess of muons of celestial origin over cosmic-ray background. Our search for steady sources in solid angle bins of DELTAOMEGA almost-equal-to 3.0-degrees x 3.0-degrees in the declination range -5-degrees less-than-or-equal-to delta less-than-or-equal-to 90-degrees was negative; the upper limit with 95% C.L. to the muon flux at mid-latitudes (delta approximately 45-degrees) is J(mu)steady less-than-or-similar-to 2 x 10(-12) cm-2 s-1. In addition, we have searched for muon excesses modulated by the orbital period of selected X-ray sources, including Cyg X-3, Cyg X-1, Her X-1, 4U 0115+63, and 4U 1907+09. For Cyg X-3 we obtained an upper limit with 95% C.L. of J(mu)mod less-than-or-equal-to 8.8 x 10(-13) cm-2 s-1. Further, we have no evidence of any bursting activity from Cyg X-3, during our search period, which includes the radio outburst of 1991 January
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