نتایج جستجو برای: full face cross section
تعداد نتایج: 1032914 فیلتر نتایج به سال:
We present our results concerning a systematical analysis of helioseismic implications on solar structure and neutrino production. We find Yph = 0.238 − 0.259, Rb/R⊙ = 0.708 − 0.714 and ρb = (0.185 − 0.199) gr/cm . In the interval 0.2 < R/R⊙ < 0.65, the quantity U = P/ρ is determined with and accuracy of ±5 ◦/◦◦ or better. At the solar center still one has remarkable accuracy, ∆U/U < 4%. We com...
We present a search for a charmed pentaquark decaying strongly to D(∗)−p. Finding no evidence for such a state, we set limits on the cross section times branching ratio relative to D∗− and D− under particular assumptions about the production mechanism.
Article history: Received 25 May 2015 Received in revised form 3 July 2015 Accepted 6 July 2015 Available online xxxx
Two recent results in ep physics using the ZEUS detector at HERA are discussed: a measurement of the prompt photon production cross section in photoproduction, and the first observation of Deeply Virtual Compton Scattering in DIS.
We measure the ratio of the isolated direct photon prodution cross section at p s = 630 GeV to that at p s = 1800 GeV for the central (jj < 0:9) and forward (1:6 < jj < 2:5) rapidity regions. We compare the result with next to leading order QCD predictions using CTEQ parton distribution functions.
We update a unified chargino-neutralino trilepton search using 3.2 fb −1 of data gathered with the CDF II detector at the Tevatron. This search defines exclusive trilepton channels of generalized lepton types to increase sensitivity. We expect the trilepton categories to produce 1.47 ± 0.21 background events and observe one event. In categories with a track object we predict 9.38 ± 1.44 backgro...
During the Workshop Alexander Varfolomeev pointed out that light-by-light scattering at optical frequencies can be enhanced by use of a third laser beam [1]. Norman Kroll remarked that he had also considered this in the 60's [2]. Here we consider whether a 1-teraWatt laser, such as that built at U. Rochester for SLAC E-144 [3], could be used to perform such an experiment, and conclude that rate...
Results are reported on recent measurements of the cross section of the diffractive deep-inelastic process ep → eX p using different experimental methods. The longitudinal contribution to the diffractive cross section is shown for the first time.
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