The cross sections and forward-backward asymmetries of hadronic and leptonic events produced in e(+)e(-) collisions at centre-of-mass energies from 130 to 183 GeV are presented. Results for e+e-: mu(+)mu(-), tau(+)tau(-), q (q) over bar, b (b) over bar and c (c) over bar production show no significant deviation from the Standard Model predictions. This enables constraints to be set upon physics beyond the Standard Model such as four-fermion contact interactions. leptoquarks, Z' bosons and R-parity violating squarks and sneutrinos. Limits on the energy scale Lambda of e(+)e(-) f (f) over bar contact interactions are typically in the range from 2 to 10 TeV. Limits on R-parity violating sneutrinos reach masses of a few hundred GeV/c(2) for large values of their Yukawa couplings.

Study of fermion pair production in e(+)e(-) collisions at 130-183 GeV / Barate, R., Decamp, D., Ghez, P., Goy, C., Jezequel, S., Lees, J.p., Martin, F., Merle, E., Minard, M.n., Pietrzyk, B., Alemany, R., Casado, M.p., Chmeissani, M., Crespo, J.m., Fernandez, E., Fernandez Bosman, M., Garrido, L., Grauges, E., Juste, A., Martinez, M., et al.. - In: THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6044. - STAMPA. - 12:2(2000), pp. 183-207. [10.1007/s100529900223]

Study of fermion pair production in e(+)e(-) collisions at 130-183 GeV

CREANZA, Donato Maria;GELAO, Gennaro;IASELLI, Giuseppe;MAGGI, Giorgio Pietro;
2000

Abstract

The cross sections and forward-backward asymmetries of hadronic and leptonic events produced in e(+)e(-) collisions at centre-of-mass energies from 130 to 183 GeV are presented. Results for e+e-: mu(+)mu(-), tau(+)tau(-), q (q) over bar, b (b) over bar and c (c) over bar production show no significant deviation from the Standard Model predictions. This enables constraints to be set upon physics beyond the Standard Model such as four-fermion contact interactions. leptoquarks, Z' bosons and R-parity violating squarks and sneutrinos. Limits on the energy scale Lambda of e(+)e(-) f (f) over bar contact interactions are typically in the range from 2 to 10 TeV. Limits on R-parity violating sneutrinos reach masses of a few hundred GeV/c(2) for large values of their Yukawa couplings.
2000
Study of fermion pair production in e(+)e(-) collisions at 130-183 GeV / Barate, R., Decamp, D., Ghez, P., Goy, C., Jezequel, S., Lees, J.p., Martin, F., Merle, E., Minard, M.n., Pietrzyk, B., Alemany, R., Casado, M.p., Chmeissani, M., Crespo, J.m., Fernandez, E., Fernandez Bosman, M., Garrido, L., Grauges, E., Juste, A., Martinez, M., et al.. - In: THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6044. - STAMPA. - 12:2(2000), pp. 183-207. [10.1007/s100529900223]
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/11589/1708
Citazioni
  • Scopus 94
  • ???jsp.display-item.citation.isi??? 99
social impact