A total of 628 pb(-1) of data collected with the ALEPH detector at centre-of-mass energies from 189 to 209 GeV is analysed in the search for gauge mediated SUSY breaking (GMSB) topologies. These topologies include two acoplanar photons, non-pointing single photons, acoplanar leptons, large impact parameter leptons, detached slepton decay vertices, heavy stable charged sleptons and multi-leptons plus missing energy final states. No evidence is found for new phenomena, and lower limits on masses of supersymmetric particles are derived. A scan of a minimal GMSB parameter space is performed and lower limits are set for the next-to-lightest supersymmetric particle (NLSP) mass at 54 GeV/c(2) and for the mass scale parameter A at 10 TeV/c(2), independently of the NLSP lifetime. Including the results from the neutral Higgs boson searches, a NLSP mass limit of 77 GeV/c(2) is obtained and values of A up to 16TeV/c(2) are excluded.

Search for gauge mediated SUSY breaking topologies in e(+)e(-) collisions at centre-of-mass energies up to 209 GeV / A. HEISTER AND S., S., R., B., R., B., I., D.B., D., D., C., G., S., J., J. P., L., F., M., E., M., M. N., M., B. PIETRZYK AND B., T., G., B., S., B., M. P., C., M., C., J. M., C., E., F., M., F.B., Garrido, L.L., et al.. - In: THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6044. - STAMPA. - 25:3(2002), pp. 339-351. [10.1007/s10052-002-1005-z]

Search for gauge mediated SUSY breaking topologies in e(+)e(-) collisions at centre-of-mass energies up to 209 GeV

CREANZA, Donato Maria;DE FILIPPIS, Nicola;IASELLI, Giuseppe;Maggi, Giorgio Pietro;
2002

Abstract

A total of 628 pb(-1) of data collected with the ALEPH detector at centre-of-mass energies from 189 to 209 GeV is analysed in the search for gauge mediated SUSY breaking (GMSB) topologies. These topologies include two acoplanar photons, non-pointing single photons, acoplanar leptons, large impact parameter leptons, detached slepton decay vertices, heavy stable charged sleptons and multi-leptons plus missing energy final states. No evidence is found for new phenomena, and lower limits on masses of supersymmetric particles are derived. A scan of a minimal GMSB parameter space is performed and lower limits are set for the next-to-lightest supersymmetric particle (NLSP) mass at 54 GeV/c(2) and for the mass scale parameter A at 10 TeV/c(2), independently of the NLSP lifetime. Including the results from the neutral Higgs boson searches, a NLSP mass limit of 77 GeV/c(2) is obtained and values of A up to 16TeV/c(2) are excluded.
2002
Search for gauge mediated SUSY breaking topologies in e(+)e(-) collisions at centre-of-mass energies up to 209 GeV / A. HEISTER AND S., S., R., B., R., B., I., D.B., D., D., C., G., S., J., J. P., L., F., M., E., M., M. N., M., B. PIETRZYK AND B., T., G., B., S., B., M. P., C., M., C., J. M., C., E., F., M., F.B., Garrido, L.L., et al.. - In: THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6044. - STAMPA. - 25:3(2002), pp. 339-351. [10.1007/s10052-002-1005-z]
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11589/3569
Citazioni
  • Scopus 48
  • ???jsp.display-item.citation.isi??? 49
social impact