Direct search for light gluinos

V. Fanti, A. Lai, L. Musa, D. Marras, A. Nappi, B. Hay, R. W. Moore, K. N. Moore, D. J. Munday, M. D. Needham, M. A. Parker, T. O. White, S. A. Wotton, J. Andersen, G. Barr, G. Bocquet, J. Bremer, A. Ceccucci, D. Cundy, N. DobleG. Fischer, W. Funk, L. Gatignon, A. Gianoli, A. Gonidec, G. Govi, P. Grafström, W. Kubischta, S. Luitz, G. Kesseler, J. P. Matheys, A. Norton, S. Palestini, B. Panzer-Steindel, D. Schinzel, H. Taureg, M. Velasco*, O. Vossnack, H. Wahl, G. Wirrer, V. Kekelidze, A. Mestvirishvili, I. Potrebenikov, G. Tatichvili, A. Tkatchev, A. Zinchenko, O. Boyle, V. J. Martin, I. G. Knowles, H. L C Parsons, P. Dalpiaz, J. Duclos, P. L. Frabetti, M. Martini, F. Petrucci, M. Porcu, M. Savrie, A. Bizzeti, M. Calvetti, G. Graziani, E. Iacopini, M. Lenti, A. Michetti, H. G. Becker, H. Blümer, P. Buchholz, D. Coward, C. Ebersberger, H. Fox, A. Kalter, K. Kleinknecht, U. Koch, L. Köpke, B. Renk, J. Scheidt, J. Schmidt, V. Schönharting, I. Schue, R. Wilhelm, A. Winharting, M. Wittgen, J. C. Chollet, S. Crépé, L. Iconomidou-Fayard, L. Fayard, J. Ocariz, G. Unal, D. Vattolo, I. Wingerter, G. Anzivino, P. Cenci, P. Lubrano, M. Pepe, B. Gorini, P. Calafiura, R. Carosi, C. Cerri, M. Cirilli, F. Costantini, R. Fantechi, S. Giudici, I. Mannelli, V. Marzulli, G. Pierazzini, M. Sozzi, J. B. Cheze, J. Cogan, M. de Beer, P. Debu, A. Formica, R. Granier-De-Cassagnac, P. Hristov, E. Mazzucato, B. Peyaud, S. Schanne, R. Turlay, B. Vallage, I. Augustin, M. Bender, M. Holder, M. Ziolkowski, R. Arcidiacono, C. Biino, F. Marchetto, E. Menichetti, J. Nassalski, E. Rondio, M. Szleper, W. Wislicki, S. Wronka, H. Dibon, M. Jeitler, M. Markytan, I. Mikulec, G. Neuhofer, M. Pernicka, A. Taurok

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

We present the results for a direct search for light gluinos through the appearance of η→3π0 with high transverse momentum in the vacuum tank of the NA48 experiment at CERN. We find one event within a lifetime range of 10-9-10-3 s and another one between 10-10-10-9 s. Both events are consistent with the expected background from neutrons in the beam, produced by 450 GeV protons impinging on the Be targets, which interact with the residual air in the tank. From these data we give limits on the production of the hypothetical gg̃ bound state, the R0 hadron, and its R0→ηγ + ̃ decay in the R0 mass range between 1 and 5 GeV.

Original languageEnglish (US)
Pages (from-to)117-124
Number of pages8
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume446
Issue number2
DOIs
StatePublished - 1999

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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