@article{3044428,
    title = "A STUDY OF THE REACTION E+E--]MU+MU- AROUND THE Z0 POLE",
    author = "Abreu, P and Adam, W and Adami, F and Adye, T and Akesson, T and and Alekseev, GD and Allen, P and Almehed, S and Alted, F and Alvsvaag, SJ and and Amaldi, U and Anassontzis, E and Antilougus, P and Apel, WD and and Asman, B and Astier, P and Augustin, JE and Augustinus, A and Baillon, P and and Bambade, P and Barao, F and Barbiellini, G and Bardin, DY and and Baroncelli, A and Barring, O and Bartl, W and Bates, MJ and Baubillier, and M and Becks, KH and Beeston, CJ and Begalli, M and Beilliere, P and and Belokopytov, I and Belous, K and Beltran, P and Benedic, D and Benlloch, and JM and Berggren, M and Bertrand, D and Biagi, S and Bianchi, F and and Bibby, JH and Bilenky, MS and Billoir, P and Bjarne, J and Bloch, D and and Bogolubov, PN and Bolognese, T and Bonapart, M and Bonesini, M and and Booth, PSL and Boratav, M and Borgeaud, P and Borner, H and Bosio, C and and Botner, O and Bonquet, B and Bozzo, M and Braibant, S and Branchini, P and and Brand, KD and Brenner, RA and Bricman, C and Brown, RCA and Brummer, and N and Brunet, JM and Bugge, L and Buran, T and Burmeister, H and and Buytaert, JAMA and Caccia, M and Calvi, M and Rozas, AJC and Campagne, and JE and Campion, A and Camporesi, T and Canale, V and Cao, F and Carroll, and L and Caso, C and Castelli, E and Gimenez, MVC and Cattai, A and and Cavallo, FR and Cerrito, L and Charpentier, P and Checchia, P and and Chelkov, GA and Chevalier, L and Chliapnikov, P and Chorowicz, V and and Cirio, R and Clara, MP and Contreras, JL and Contri, R and Cosme, G and and Couchot, F and Crawley, HB and Crennell, D and Crosetti, G and Crosland, and N and Crozon, M and Maestro, JC and Czellar, S and Dagoret, S and and Dahl-Jensen, E and Dalmagne, B and Dam, M and Damgaard, G and Darbo, G and and Daubie, E and Dauncey, PD and Davenport, M and David, P and De and Angelis, A and De Beer, M and De Boeck, H and De Boer, W and De Clercq, and C and Laso, MDMD and De Groot, N and De La Vaissiere, C and De Lotto, B and and Defoix, C and Delikaris, D and Delorme, S and Delpierre, P and and Demaria, N and Di Ciaccio, L and Dijkstra, H and Djama, F and Dolbeau, J and and Doll, O and Donszelmann, M and Doroba, K and Dracos, M and Drees, J and and Dris, M and Dulinski, W and Dzhelyadin, R and Eek, LO and Eerola, and PAM and Ekelof, T and Ekspong, G and Engel, JP and Falaleev, V and and Fassouliotis, D and Fenyuk, A and Alonso, MF and Ferrer, A and Filippas, and TA and Firestone, A and Foeth, H and Fokitis, E and Folegati, P and and Fontanelli, F and Forsbach, H and Franek, B and Fransson, KE and and Frenkiel, P and Fries, DC and Frodesen, AG and Fruhwirth, R and and Fulda-Quenzer, F and Furnival, K and Furstenau, H and Fuster, J and and Gago, JM and Galeazzi, G and Gamba, D and Garcia, J and Gasparini, U and and Gavillet, P and Gazis, EN and Gerber, JP and Giacomelli, P and Glitza, and KW and Gokieli, R and Golovatyuk, VM and Cadenas, JJGY and Goobar, A and and Gopal, G and Gorski, M and Gracco, V and Grant, A and Grard, F and and Graziani, E and Gritsaenko, IA and Gros, MH and Grosdidier, G and and Grossetete, B and Gumenyuk, S and Guy, J and Hahn, F and Hahn, M and and Haider, S and Hajduk, Z and Hakansson, A and Hallgren, A and Hamacher, K and and De Monchenault, GH and Harris, FJ and Heck, BW and Herbst, I and and Hernandez, JJ and Herquet, P and Herr, H and Higon, E and Hilke, HJ and and Hodgson, SD and Hofmokl, T and Holmes, R and Holmgren, SO and and Holthuizen, D and Hooper, JE and Houlden, M and Hrubec, J and Hulth, PO and and Hultqvist, K and Husson, D and Hyams, BD and Ioannou, P and Iversen, and PS and Jackson, JN and Jalocha, P and Jarlskog, G and Jarry, P and and Jean-Marie, B and Johansson, EK and Johnson, D and Jonker, M and and Jonsson, L and Juillot, P and Kalkanis, G and Kalmus, G and Kantardjian, and G and Kapusta, F and Kapusta, P and Katsanevas, S and Katsoufis, EC and and Keranen, R and Kesteman, J and Khomenko, BA and Khovanski, NN and King, and B and Klein, H and Klempt, W and Klovning, A and Kluit, P and Koehne, JH and and Koene, B and Kokkinias, P and Kopf, M and Koratzinos, M and Korcyl, and K and Korytov, AV and Korzen, B and Kostrikov, M and Kostukhin, V and and Kourkoumelis, C and Kreuzberger, T and Krolikowski, J and and Kruener-Marquis, U and Krupinski, W and Kucewicz, W and Kurvinen, K and and Laakso, MI and Lambropoulos, C and Lamsa, JW and Lanceri, L and and Lapchine, V and Lapin, V and Laugier, JP and Lauhakangas, R and and Laurikainen, P and Leder, G and Ledroit, F and Lemonne, J and Lenzen, G and and Lepeltier, V and Letessier-Selvon, A and Lieb, E and Lillethun, E and and Lindgren, J and Lippi, I and Llosa, R and Loerstad, B and Lokajicek, and M and Loken, JG and Aguera, MAL and Lopez-Fernandez, A and Los, M and and Loukas, D and Lounis, A and Lozano, JJ and Lucock, R and Lutz, P and and Lyons, L and Maehlum, G and Magnussen, N and Maillard, J and Maltezos, A and and Maltezos, S and Mandl, F and Marco, J and Margoni, M and Marin, JC and and Markou, A and Mathis, L and Matorras, F and Matteuzzi, C and and Matthiae, G and Mazzucato, M and McCubbin, M and McKay, R and Mc Nulty, and R and Menichetti, E and Meroni, C and Meyer, WT and Mitaroff, WA and and Mitselmakher, GC and Mjoernmark, U and Moa, T and Moeller, R and Moenig, and K and Monge, MR and Morettini, P and Mueller, H and Muller, H and Myatt, and G and Naraghi, F and Nau-Korzen, U and Navarria, FL and Negri, P and and Nielsen, BS and Nijjhar, B and Nikolaenko, V and Obraztsov, V and and Olshevski, AG and Orava, R and Ouraou, A and Pain, R and Palka, H and and Papadopoulou, T and Pape, T and Passeri, A and Pegoraro, M and and Perevozchikov, V and Pernicka, M and Perrotta, A and Pimenta, M and and Pingot, O and Pinsent, A and Pol, ME and Polok, G and Poropat, P and and Privitera, P and Pullia, A and Pyyhtia, J and Rademakers, AA and and Radojicic, D and Ragazzi, S and Range, WH and Ratoff, PN and Read, AL and and Redaelli, NG and Regler, M and Reid, D and Renton, PB and Resvanis, and LK and Richard, F and Richardson, M and Ridky, J and Rinaudo, G and and Roditi, I and Romero, A and Ronchese, P and Ronjin, V and Rosenberg, EI and and Rossi, U and Rosso, E and Roudeau, P and Rovelli, T and Ruckstuhl, W and and Ruhlmann, V and Ruiz, A and Saarikko, H and Sacquin, Y and Salt, J and and Sanchez, E and Sanchez, J and Sannino, M and Schaeffer, M and and Schneider, H and Scuri, F and Segar, AM and Sekulin, R and Sessa, M and and Sette, G and Seufert, R and Shellard, RC and Siegrist, P and Simonetti, and S and Simonetto, F and Sissakian, AN and Skaali, TB and Skjevling, G and and Smadja, G and Smith, GR and Sosnowski, R and Spassoff, TS and Spiriti, E and and Squarcia, S and Staeck, H and Stanescu, C and Stavropoulos, G and and Stichelbaut, F and Stocchi, A and Strauss, J and Strub, R and and Stubenrauch, CJ and Szczekowski, M and Szeptycka, M and Szymanski, P and and Tavernier, S and Tcherniaev, E and Theodosiou, G and Tilquin, A and and Timmermans, J and Timofeev, VG and Tkatchev, LG and Todorov, T and Toet, and DZ and Topphol, AK and Tortora, L and Trainor, MT and Treille, D and and Trevisan, U and Trischuk, W and Tristram, G and Troncon, C and Tsirou, A and and Tsyganov, EN and Turala, M and Turchetta, R and Turluer, ML and and Tuuva, T and Tyapkin, IA and Tyndel, M and Tzamarias, S and Udo, F and and Ueberschaer, S and Uvarov, VA and Valenti, G and Vallazza, E and Ferrer, and JAV and Van Apeldoorn, GW and Van Dam, P and Van Doninck, WK and Van and Eijndhoven, N and Vander Velde, C and Varela, J and Vaz, P and Vegni, G and and Velasco, J and Ventura, L and Venus, W and Verbeure, F and and Vertogradov, LS and Vibert, L and Vilanova, D and Vishnevsky, N and and Vlasov, EV and Vodopyanov, AS and Vollmer, M and Voulgaris, G and and Voutilainen, M and Vrba, V and Wahlen, H and Walck, C and Waldner, F and and Wayne, M and Wehr, A and Weilhammer, P and Werner, J and Wetherell, AM and and Wickens, JH and Wikne, J and Wilkinson, GR and Williams, WSC and and Winter, M and Wormald, D and Wormser, G and Woschnagg, K and Yamdagni, N and and Yepes, P and Zaitsev, A and Zalewska, A and Zalewski, P and and Zevgolatakos, E and Zhang, G and Zimin, NI and Zitoun, R and Funchal, RZ and and Zumerle, G and Zuniga, J",
    journal = "PHYSICS LETTERS B",
    year = "1991",
    volume = "260",
    number = "1-2",
    pages = "240-248",
    publisher = "ELSEVIER SCIENCE BV",
    issn = "0370-2693",
    doi = "10.1016/0370-2693(91)90998-6",
    abstract = "Measurements of the cross section and forward-backward asymmetry for the
reaction e+e- –> mu+mu- using the DELPHI detector at LEP are presented.
The data come from a scan around the Z0 peak at seven centre of mass
energies, giving a sample of 3858 events in the polar angle region
22-degrees < theta < 158-degrees. From a fit to the cross section for
43-degrees < theta < 137-degrees, a polar angle region for which the
absolute efficiency has been determined, the square root of the product
of the Z0 –> e+e- and Z0 –> mu+mu- partial widths is determined to be
(GAMMA-e-GAMMA-mu)1/2 = 85.0 +/- 0.9 (stat.) +/- 0.8 (syst.) MeV. From
this measurement of the partial width, the value of the effective weak
mixing angle is determined to be sin2(theta-w) = 0.2267 +/- 0.0037. The
ratio of the hadronic to muon pair partial widths is found to be
GAMMA-h/GAMMA-mu = 19.89 +/- 0.40 (stat.) +/- 0.19 (syst.). The
forward-backward asymmetry at the resonance peak energy E(CMS) = 91.22
GeV is found to be A(FB) = 0.028 +/- 0.020 (stat.) +/- 0.005 (syst.).
From a combined fit to the cross section and forward-backward asymmetry
data, the products of the electron and muon vector and axial-vector
coupling constants are determined to be V(e)V-mu = 0.0024 +/- 0.0015
(stat.) +/- 0.0004 (syst.) and A(e)A-mu = 0.253 +/- 0.003 (stat.) +/-
0.003 (syst.). These results are in good agreement with the expectations
of the minimal standard model."
}