نتایج جستجو برای: s mass production p
تعداد نتایج: 2718530 فیلتر نتایج به سال:
The interest in the single transverse spin asymmety AN in the pion production, N(P, S⊥)+N(P ) → π(lT )+X , and the hyperon (typically Λ) polarization PΛ in the unpolarized NN collision, N(P ) +N(P ) → Λ(lT , S⊥) +X , resides in the fact that they probe quark-gluon correlation in the hadrons (higher twist effect) which is not included in the parton model. Without it, the partonic cross sections ...
Flow disturbances are generated inside a duct via pulsed injection of helium into a flow of air. This leads to the generation of an acoustic pulse (direct noise), as well as the production of entropic and compositional inhomogeneities which are convected with the mean flow. As these inhomogeneities are convected through a choked nozzle, they generate indirect noise. The resulting acoustic press...
We studied the production of protons to the backward direction in (p, 2p) reactions on 6Li and 12C, accompanied by a proton emitted into the forward hemisphere. The momenta of the final two protons were measured in a wide range with the two-arm time-of-flight spectrometer. For each event we reconstructed the mass of the intermediate off-shell particles. We observed that the ∆(1232) is manifeste...
We report the first observation of Z/γ production in Compton scattering of quasi-real photons. This is a subprocess of the reaction ee → eeZ/γ, where one of the final state electrons is undetected. Approximately 55 pb of data collected in the year 1997 at an ee centre-of-mass energy of 183 GeV with the OPAL detector at LEP have been analysed. The Z/γ from Compton scattering has been detected in...
(ricevuto il 12 Dicembre 1959) Recently there have been revived indications (1) of the possible existence of doubly strange heavy mesons of approximately 1500 electron masses. In this note we wish to discuss some of the theoretical implications of ~his. The positive meson to+ (S~ 2) could first be produced by 1.8 GeV/c pions in the reaction (1) r~-+p-~E-+~ +. This process also gives a markedly ...
In contrast to the case for the nucleon, little is known about the distribution of gluons in nuclei, especially in the region of Björkenx < 0.01, where x is the fraction of the nucleon’s momentum carried by the parton. Studies of deuteron(proton)+nucleus collisions at large center of mass energy ( √ sNN=200 GeV) can provide constraints on the gluon density in heavy nuclei. In the perturbative Q...
s of papers 19 series were fed to the same strain of layers starting at 31 wk of age. Broken line regression analysis provided the following isoleucine estimates (g/day): Series 1 egg production, 0.46; Series 1 egg mass, 0.58; Series 2 egg production, 0.52; Series 2 egg mass, 0.50.
We discuss perturbative and non{perturbative strong interaction eeects in the pair production of stop squarks (~ t 1) at e + e ? colliders. Events with an additional hard gluon allow to detect or exclude ~ t 1 ~ t 1 production even in scenarios with very small mass splitting between ~ t 1 and an invisible lightest supersymmetric particle (LSP). Such events can also help to establish that ~ t 1 ...
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. Measurement of differential production cross sections for Z=γ Ã bosons in association with jets in p ¯ p collisions...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید