Direct photon production in e+e- collisions

Jayaraman, T. ; Rajasekaran, G. ; Rindani, S. D. (1985) Direct photon production in e+e- collisions Physical Review D - Particles, Fields, Gravitation and Cosmology, 32 (5). pp. 1262-1265. ISSN 1550-7998

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We study the process e+e-→γ+X as a possible test to distinguish between fractionally-charged-quark models and gauged integer-charged-quark models. We find that charge-asymmetry measurement in this process would not distinguish between the two models, contrary to earlier statements in the literature. However, we show that a direct measurement of this process would serve to clearly distinguish the two models, if the relevant energies are above color threshold. We find that the integer-charged-quark-model cross sections are enhanced by a factor of 1.7–1.8 above the values given by the fractionally-charged-quark model, in the kinematic ranges where a clean signal is expected. We also show that this process cannot clearly distinguish between the two models if the relevant energies are below color threshold.

Item Type:Article
Source:Copyright of this article belongs to The American Physical Society.
ID Code:94698
Deposited On:18 Oct 2012 07:02
Last Modified:18 Oct 2012 07:02

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