2018 Impact factor 4.843
Particles and Fields
Eur. Phys. J. C16, 541-546
DOI 10.1007/s100520000438

$\gamma\gamma \rightarrow t \bar{c} + c \bar{t}$ in a supersymmetric theory with explicit R-parity violation

Z.H. Yu1,3 - H. Pietschmann1 - W.G. Ma2,3 - L. Han3 - Y. Jiang3

1 Institut für Theoretische Physik, Universität Wien, 1090 Vienna, Austria
2 CCAST (World Laboratory), P.O. Box 8730, Beijing 100080, P.R. China
3 Department of Modern Physics, University of Science and Technology of China (USTC), Hefei, Anhui 230027, P.R. China

Received: 20 September 1999 / Revised version: 6 May 2000 / Published online: 6 July 2000 - © Springer-Verlag 2000

Abstract
We study the process $\gamma\gamma \rightarrow t \bar{c} + c \bar{t}$ in a Rp-violating supersymmetric model with the effects of both B- and L-violating interactions. The calculation shows that it is possible to detect a Rp-violating signal at the Linear Collider. Information about the B-violating interaction in this model could be obtained with a very clean background, if we take the present upper bounds for the parameters in the supersymmetric $\rlap/ R_{\mathrm {p}}$ interactions. Even if we cannot detect a signal of $\rlap/ R_{\mathrm {p}}$ in the experiment, we may get more stringent constraints on the heavy-flavor $\rlap/ R_{\mathrm {p}}$ couplings.


Copyright Società Italiana di Fisica, Springer-Verlag 2000