نتایج جستجو برای: goers
تعداد نتایج: 227 فیلتر نتایج به سال:
Searches in ep collisions for heavy excited fermions have been performed with the ZEUS detector at HERA. Excited states of electrons and quarks have been searched for in ep collisions at a centre-of-mass energy of 300GeV using an integrated luminosity of 47.7 pb. Excited electrons have been sought via the decays e → eγ, e → eZ and e → νW . Excited quarks have been sought via the decays q → qγ a...
The beauty production cross section for deep inelastic scattering events with at least one hard jet in the Breit frame together with a muon has been measured, for photon virtualities Q > 2 GeV, with the ZEUS detector at HERA using integrated luminosity of 72 pb. The total visible cross section is σbb(ep → e jet μ X) = 40.9 ± 5.7 (stat.) −4.4(syst.) pb. The next-to-leading order QCD prediction l...
colonial animals sensu stricto. Within a social insect 'colony', individuals share resources — though they aren't physically connected — and are closely related, but not genetically identical. Siphonophores are distinctive because they show the highest degree of division of labor between the individual zooids of any colonial organism. Being a siphonophore is as if you were to bud thousands of c...
The dijet cross section in photoproduction has been measured with the ZEUS detector at HERA using an integrated luminosity of 38.6 pb. The events were required to have a virtuality of the incoming photon, Q, of less than 1 GeV and a photon-proton centre-of-mass energy in the range 134 < Wγp < 277 GeV. Each event contains at least two jets satisfying transverse-energy requirements of E T > 14 Ge...
First measurements of cross sections for isolated prompt photon production in deep inelastic ep scattering have been made using the ZEUS detector at the HERA electron-proton collider using an integrated luminosity of 121 pb. A signal for isolated photons in the transverse energy and rapidity ranges 5 < E T < 10GeV and −0.7 < η < 0.9 was observed for virtualities of the exchanged photon of Q > 3...
Next-to-leading-order QCD analyses of the ZEUS data on deep inelastic scattering together with fixed-target data have been performed, from which the gluon and quark densities of the proton and the value of the strong coupling constant, αs(MZ), were extracted. The study includes a full treatment of the experimental systematic uncertainties including point-to-point correlations. The resulting unc...
s ofPapers. Sendai, Japan, July 25–29, 1994. (Sendai International Center, Sendai, Japan 1994), p. 392 [10] S. Godin, A.I. Carswell, D.P. Donovan, et al.: Appl. Opt. 38, 6225 (1999) [11] C. Weitkamp, G. Baumbach, H. Becker, et al.: Gefahrstoffe-Reinhaltung der Luft 60, 279 (2000)[12] M.H. Proffitt, A.O. Langford: Appl. Opt. 36, 2568 (1997)[13] C. Weitkamp, O. Thomsen, P. Bisling: Laser ...
Ç ASIA Haptics 2014 was the first haptics conference featuring only hands-on demos with no podium presentations during the main conference. During the one and a half day main conference on November 19 and 20, 2014, a total of 58 peerreviewed and 10 late-breaking demos were showcased to some 210 conference attendees from all over the world. Due to the obvious requirement of having to move equipm...
A search for QCD-instanton-induced events in deep inelastic ep scattering has been performed with the ZEUS detector at the HERA collider, using data corresponding to an integrated luminosity of 38 pb. A kinematic range defined by cuts on the photon virtuality, Q > 120GeV, and on the Bjorken scaling variable, x > 10, has been investigated. The QCD-instanton induced events were modelled by the Mo...
The cross sections for charged and neutral current deep inelastic scattering in ep collisions with a longitudinally polarised positron beam have been measured using the ZEUS detector at HERA. The results, based on data corresponding to an integrated luminosity of 23.8 pb at √ s = 318GeV, are given for both ep charged current and neutral current deep inelastic scattering for both positive and ne...
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