Di-Jet production in photon-photon collisions at
نویسندگان
چکیده
منابع مشابه
Jet and Di-Jet production in Photon-Photon collisions
During the past two years different analyses [1,2,3,4] of jet and di-jet production from real photons scattering at LEP have been presented. A unique computation it is available in the literature [5,6] at NLO for this process. This computation is based on the slicing method to cancel analytically virtual and infrared divergences. This technique relies on an approximate treatment of the phase sp...
متن کاملHigh Momentum Particle and Jet Production in Photon-photon Collisions *
Jet and particle production have been studied in collisions of quasi-real photons collected during the LEP2 program. OPAL and DELPHI report good agreement of NLO perturbative QCD with the measured differential di-jet cross sections, which reach a mean transverse energy of the di-jet system of 25GeV. L3, on the other hand, finds drastic disagreement of the same calculation with single jet produc...
متن کاملJet and hadron production in photon - photon collisions ∗
∗Heisenberg-Fellow hadronic fluctuations (“resolved”). Direct and resolved interactions can be separated by measuring the fraction xγ of the photon’s momentum participating in the hard interaction for the two photons. In γγ interactions they are labelled xγ for the two photons. Ideally, the direct γγ events with two bare photons are expected to have xγ = 1 and x − γ = 1, whereas for double-reso...
متن کاملJet production in two-photon collisions at LEP
Jet and di-jet production are studied in collisions of quasi-real photons collected during the LEP2 program at ee center-of-mass energies from 189 to 209GeV. OPAL reports good agreement of NLO perturbative QCD with the measured differential di-jet cross sections, which reach a mean transverse energy of the di-jet system of 25GeV. L3, on the other hand, finds drastic disagreement of the same cal...
متن کاملObservation of Exclusive Di-Photon Production in Hadron-Hadron Collisions
We present the first observation and cross section measurement of exclusive photon pair production in proton-antiproton collisions at √ s = 1.96 TeV taken by the Run II Collider Detector at Fer-milab. We select events with two electromagnetic showers, each with transverse energy E T > 2.5 GeV and pseudorapidity |η| < 1.0, with no other particles detected in −7.4 < η < +7.4. The two showers have...
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ژورنال
عنوان ژورنال: The European Physical Journal C
سال: 1999
ISSN: 1434-6044
DOI: 10.1007/s100520050599