Phenomenology based on tachyon exchange

Gleeson, A. M. ; Gundzik, M. G. ; Sudarshan, E. C. G. ; Pagnamenta, Antonio (1972) Phenomenology based on tachyon exchange Physical Review D - Particles, Fields, Gravitation and Cosmology, 6 (3). pp. 807-813. ISSN 1550-7998

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The observation that the existence of tachyonic resonances can lead to peaks in differential cross sections implies a phenomenology of high-energy processes. A large class of hadronic differential cross sections shows a common peak at −t≃1.0 (GeV/c)2. We present a detailed fit of the Kp and πp charge-exchange (CEX) differential cross sections and determine that both processes are consistently fitted by using a tachyonic resonance with m2=−1.0 GeV2 and Γ=580 MeV. The spin of the resonance determines the energy shrinkage rate and is of the form j=−½+iσ. A value of σ=0.15 leads to an adequate fit to the data. The other quantum numbers of this strongly interacting tachyon are I=1, G parity even, and Y parity even. Other possible examples of tachyonic resonances are described.

Item Type:Article
Source:Copyright of this article belongs to The American Physical Society.
ID Code:51105
Deposited On:27 Jul 2011 12:42
Last Modified:18 May 2016 05:10

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