Low-virtuality photon transitions γ⁎→ff¯ and the photon-to-jet conversion function
نویسندگان
چکیده
منابع مشابه
TWO PHOTON TRANSITIONS IN THE OPTOGALVANIC SPECTRUM OF NEON
Seventeen two-photon transitions for neon have been observed in the 580- 635 nm spectral region for use in the spectroscopic study of its higher excited levels, which are not accessible by one-photon absorption. To compare the two and one-photon absorption signals originating from the same lower level, an effort was made to record single-photon optogalvanic spectrum in the available wavele...
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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...
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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...
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∗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...
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We present recent results from the Collider Detector at Fermilab (CDF) and DØ experiments using data from proton-antiproton collisions with √ s = 1.96 TeV at Run II of the Fermilab Tevatron. New physics may appear in events with high transverse momentum objects, including photons and quark or gluon jets. The results described here are of signature-based searches and model-based searches probing...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 2019
ISSN: 0370-2693
DOI: 10.1016/j.physletb.2019.134951