Cross sections, angular distributions and forward-backward asymmetries are presented, of two-fermion events produced in e(+)e(-) collisions at centre-of-mass energies from 189 to 209 GeV at LEP, measured with the ALEPH detector. Results for e(+)e(-), mu(+)mu(-), tau(+)tau(-), q (q) over bar, b (b) over bar and c (c) over bar production are in agreement with the standard model predictions. Constraints are set on scenarios of new physics such as four-fermion contact interactions, leptoquarks, Z' bosons, TeV-scale quantum gravity and R-parity violating squarks and sneutrinos.

Fermion pair production in e(+)e(-) collisions at 189-209 GeV and constraints on physics beyond the standard model / Schael, S., Barate, R., Bruneliere, R., De Bonis, I., Decamp, D., Goy, C., Jezequel, S., Lees, J.p., Martin, F., Merle, E., Minard, M.n., Pietrzyk, B., Trocme, B., Bravo, S., Casado, M.p., Chmeissani, M., Crespo, J.m., Fernandez, E., Fernandez Bosman, M., Garrido, L., et al.. - In: THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6044. - 49:2(2007), pp. 411-437. [10.1140/epjc/s10052-006-0156-8]

Fermion pair production in e(+)e(-) collisions at 189-209 GeV and constraints on physics beyond the standard model

CREANZA, Donato Maria;DE FILIPPIS, Nicola;IASELLI, Giuseppe;MAGGI, Giorgio Pietro;
2007

Abstract

Cross sections, angular distributions and forward-backward asymmetries are presented, of two-fermion events produced in e(+)e(-) collisions at centre-of-mass energies from 189 to 209 GeV at LEP, measured with the ALEPH detector. Results for e(+)e(-), mu(+)mu(-), tau(+)tau(-), q (q) over bar, b (b) over bar and c (c) over bar production are in agreement with the standard model predictions. Constraints are set on scenarios of new physics such as four-fermion contact interactions, leptoquarks, Z' bosons, TeV-scale quantum gravity and R-parity violating squarks and sneutrinos.
2007
Fermion pair production in e(+)e(-) collisions at 189-209 GeV and constraints on physics beyond the standard model / Schael, S., Barate, R., Bruneliere, R., De Bonis, I., Decamp, D., Goy, C., Jezequel, S., Lees, J.p., Martin, F., Merle, E., Minard, M.n., Pietrzyk, B., Trocme, B., Bravo, S., Casado, M.p., Chmeissani, M., Crespo, J.m., Fernandez, E., Fernandez Bosman, M., Garrido, L., et al.. - In: THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6044. - 49:2(2007), pp. 411-437. [10.1140/epjc/s10052-006-0156-8]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11589/3671
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