Acciarri, M. ; Achard, P. ; Adriani, O. ; Aguilar-Benitez, M. ; Gurtu, A. ; et., al (2000) Search for charginos with a small mass difference to the lightest supersymmetric particle at √s = 189 GeV Physics Letters B, 482 (1-3). pp. 31-42. ISSN 0370-2693
Full text not available from this repository.
Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/S0370-2693(00)00488-3
Abstract
A search for charginos nearly mass-degenerate with the lightest supersymmetric particle is performed using the 176 pb-1 of data collected at 189 GeV in 1998 with the L3 detector. Mass differences between the chargino and the lightest supersymmetric particle below 4 GeV are considered. The presence of a high transverse momentum photon is required to single out the signal from the photon-photon interaction background. No evidence for charginos is found and upper limits on the cross section for chargino pair production are set. For the first time at LEP2, in the case of heavy scalar leptons, chargino mass limits are obtained for any X∼±1-X∼Q1 mass difference.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 84061 |
| Deposited On: | 24 Feb 2012 05:35 |
| Last Modified: | 24 Feb 2012 05:35 |
Repository Staff Only: item control page
