Measurement and interpretation of fermion-pair production at LEP
energies of 183 and 189 GeV

Abreu, P
Adam, W
Adye, T
Adzic, P
Albrecht, Z and
Alderweireld, T
Alekseev, GD
Alemany, R
Allmendinger, T and
Allport, PP
Almehed, S
Amaldi, U
Amapane, N
Amato, S and
Anassontzis, EG
Andersson, P
Andreazza, A
Andringa, S and
Antilogus, P
Apel, WD
Arnoud, Y
Asman, B
Augustin, JE
and Augustinus, A
Baillon, P
Ballestrero, A
Bambade, P and
Barao, F
Barbiellini, G
Barbier, R
Bardin, DY
Barker, G
and Baroncelli, A
Battaglia, M
Baubillier, M
Becks, KH and
Begalli, M
Behrmann, A
Beilliere, P
Belokopytov, Y and
Belous, K
Benekos, NC
Benvenuti, AC
Berat, C
Berggren, M
and Berntzon, L
Bertrand, D
Besancon, M
Bilenky, MS and
Bizouard, MA
Bloch, D
Blom, HM
Bonesini, M
Boonekamp, M
and Booth, PSL
Borisov, G
Bosio, C
Botner, O
Boudinov, E
and Bouquet, B
Bourdarios, C
Bowcock, TJV
Boyko, I and
Bozovic, I
Bozzo, M
Bracko, M
Branchini, P
Brenner, RA
and Bruckman, P
Brunet, JM
Bugge, L
Buran, T
Buschbeck,
B
Buschmann, P
Cabrera, S
Caccia, M
Calvi, M and
Camporesi, T
Canale, V
Carena, F
Carroll, L
Caso, C and
Gimenez, MVC
Cattai, A
Cavallo, FR
Chapkin, M and
Charpentier, P
Checchia, P
Chelkov, GA
Chierici, R and
Chliapnikov, P
Chochula, P
Chorowicz, V
Chudoba, J and
Cieslik, K
Collins, P
Contri, R
Cortina, E
Cosme, G and
Cossutti, F
Costa, M
Crawley, HB
Crennell, D
Crosetti, G
and Maestro, JC
Czellar, S
D&apos

Measurement and interpretation of fermion-pair production at LEP energies of 183 and 189 GeV

Authors: P Abreu Adam, W Adye, T Adzic, P Albrecht, Z and Alderweireld, T Alekseev, GD Alemany, R Allmendinger, T and Allport, PP Almehed, S Amaldi, U Amapane, N Amato, S and Anassontzis, EG Andersson, P Andreazza, A Andringa, S and Antilogus, P Apel, WD Arnoud, Y Asman, B Augustin, JE and Augustinus, A Baillon, P Ballestrero, A Bambade, P and Barao, F Barbiellini, G Barbier, R Bardin, DY Barker, G and Baroncelli, A Battaglia, M Baubillier, M Becks, KH and Begalli, M Behrmann, A Beilliere, P Belokopytov, Y and Belous, K Benekos, NC Benvenuti, AC Berat, C Berggren, M and Berntzon, L Bertrand, D Besancon, M Bilenky, MS and Bizouard, MA Bloch, D Blom, HM Bonesini, M Boonekamp, M and Booth, PSL Borisov, G Bosio, C Botner, O Boudinov, E and Bouquet, B Bourdarios, C Bowcock, TJV Boyko, I and Bozovic, I Bozzo, M Bracko, M Branchini, P Brenner, RA and Bruckman, P Brunet, JM Bugge, L Buran, T Buschbeck, B Buschmann, P Cabrera, S Caccia, M Calvi, M and Camporesi, T Canale, V Carena, F Carroll, L Caso, C and Gimenez, MVC Cattai, A Cavallo, FR Chapkin, M and Charpentier, P Checchia, P Chelkov, GA Chierici, R and Chliapnikov, P Chochula, P Chorowicz, V Chudoba, J and Cieslik, K Collins, P Contri, R Cortina, E Cosme, G and Cossutti, F Costa, M Crawley, HB Crennell, D Crosetti, G and Maestro, JC Czellar, S D&apos
Publication date: 1 January 2000
Publisher

Abstract

An analysis of the data collected in 1997 and 1998 with the DELPHI detector at e(+)e(-) collision energies close to 183 and 189 GeV was performed in order to extract the hadronic and leptonic fermion-pair cross-sections, as well as the leptonic forward-backward asymmetries and angular distributions. The data are used to put limit on contact interactions between fermions, the exchange of R-parity violating SUSY sneutrinos, Z’ bosons and the existence of gravity in extra dimensions. (C) 2000 Published by Elsevier Science B.V

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