Perturbative odderon in quasidiffractive photon-photon scattering
نویسندگان
چکیده
منابع مشابه
The Perturbative Odderon in Quasidiffractive Photon-Photon Scattering
We study the perturbative Odderon in the quasidiffractive process γγ → ηcηc. At high energies this process is dominated by Odderon exchange and can be viewed as the theoretically cleanest test of the perturbative Odderon. We calculate the differential and total cross section, as well as the dependence on the energy and on the photon virtualities taking into account the effects of resummation of...
متن کاملLooking for the Odderon in photon collisions
At high energies amplitudes of reactions with rapidity gaps in hadronic interactions are dominated by the exchange of a color singlet, C-even state – called the Pomeron. In the language of perturbative QCD – at lowest order – the Pomeron can be described as the exchange of two gluons in the color singlet state. In contrast to the very well settled notion of the Pomeron, the status of its C-odd ...
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The production of hadrons in the collision of two photons via the process1 e+e-f e+e-X (see Fig. 1) can provide an ideal laboratory for testing many of the features of the photon's hadronic interactions, especially its short distance aspects. We will review here that part of two-photon physics which is particularly relevant to tests of perturbative QCD. (Invited talk presented at the 1979 Inter...
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The evidence for the existance of an odderon [1] remains scarce. To date, the best evidence comes from the differential cross section in elastic pp and pp̄ scattering. The pp data show a dip structure at −t ≈ 1.3 GeV while the pp̄ data only flatten off at that point. The odderon, being odd under charge conjugation, couples with different signs to protons and antiprotons and can hence account for ...
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Hadronic interactions of two quasi-real photons have been studied extensively both during the LEP1 and the LEP2 data taking periods. The higher energies available at LEP2 in particular opened regions of phase space where hadronic processes can be predicted reliably by perturbative QCD calculations, usually available to next-to-leading order in the strong coupling constant for the process concer...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2004
ISSN: 1550-7998,1550-2368
DOI: 10.1103/physrevd.70.014021