Searches for scalar top and scalar bottom quarks have been performed at center-of-mass energies between 161 GeV and 183 GeV using the L3 detector at LEP. No signal is observed. Model-independent limits on production cross sections are determined for the two decay channels (t) over tilde --> c<(chi)over tilde>(0)(1) and (b) over tilde(1) --> b<(chi)over tilde>(0)(1). Within the framework of the Minimal Supersymmetric extension of the Standard Model mass limits are derived. For mass differences between (t) over tilde(1) and <(chi)over tilde>(0)(1) greater than 10 GeV a 95% C.L. limit of 81.5 GeV is set on the mass of the Supersymmetric partner of the left-handed top. A supersymmetric partner of the left-handed bottom with a mass below 80 GeV is excluded at 95% C.L. if the mass difference between bl and <(chi)over tilde>(0)(1) is greater than 20 GeV. (C) 1999 Published by Elsevier Science B.V. All rights reserved.

Searches for scalar top and scalar bottom quarks in e(+)e(-) interactions at 161GeV <=root s <= 183GeV / Acciarri, M., Adriani, O., Aguilar Benitez, M., Ahlen, S., Alcaraz, J., Alemanni, G., Allaby, J., Aloisio, A., Alviggi, M., Ambrosi, G., Anderhub, H., Andreev, V.P., Angelescu, T., Anselmo, F., Arefiev, A., Azemoon, T., Aziz, T., Bagnaia, P., Baksay, L., Banerjee, S., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 445:(1999), pp. 428-438. [10.1016/S0370-2693(98)01505-6]

Searches for scalar top and scalar bottom quarks in e(+)e(-) interactions at 161GeV <=root s <= 183GeV

ALOISIO, ALBERTO;ALVIGGI, MARIAGRAZIA;CHIEFARI, GIOVANNI;DELLA VOLPE, DOMENICO;L. Lista;MEROLA, LEONARDO;NAPOLITANO, MARCO;S. Particelli;SCIACCA, CRISOSTOMO;
1999

Abstract

Searches for scalar top and scalar bottom quarks have been performed at center-of-mass energies between 161 GeV and 183 GeV using the L3 detector at LEP. No signal is observed. Model-independent limits on production cross sections are determined for the two decay channels (t) over tilde --> c<(chi)over tilde>(0)(1) and (b) over tilde(1) --> b<(chi)over tilde>(0)(1). Within the framework of the Minimal Supersymmetric extension of the Standard Model mass limits are derived. For mass differences between (t) over tilde(1) and <(chi)over tilde>(0)(1) greater than 10 GeV a 95% C.L. limit of 81.5 GeV is set on the mass of the Supersymmetric partner of the left-handed top. A supersymmetric partner of the left-handed bottom with a mass below 80 GeV is excluded at 95% C.L. if the mass difference between bl and <(chi)over tilde>(0)(1) is greater than 20 GeV. (C) 1999 Published by Elsevier Science B.V. All rights reserved.
1999
Searches for scalar top and scalar bottom quarks in e(+)e(-) interactions at 161GeV <=root s <= 183GeV / Acciarri, M., Adriani, O., Aguilar Benitez, M., Ahlen, S., Alcaraz, J., Alemanni, G., Allaby, J., Aloisio, A., Alviggi, M., Ambrosi, G., Anderhub, H., Andreev, V.P., Angelescu, T., Anselmo, F., Arefiev, A., Azemoon, T., Aziz, T., Bagnaia, P., Baksay, L., Banerjee, S., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 445:(1999), pp. 428-438. [10.1016/S0370-2693(98)01505-6]
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/11588/476449
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? 12
social impact