Ερευνητικό υλικό ΕΚΠΑ

Study of radiative leptonic events with hard photons and search for
excited charged leptons at root s=130-136 GeV

Αγγλικά

During the last 1995 data acquisition period at LEP, the DELPHI
experiment collected an integrated luminosity of 5.9 pb(-1) at
centre-of-mass energies of 130 GeV and 136 GeV. Radiative leptonic
events (e, mu, tau) With high energy photons were studied and compared
to Standard Model predictions. The data were used to search for charged
excited leptons decaying through an electromagnetic transition. No
significant signal was found. From the search for pair produced excited
leptons, the limits m(e)* > 62.5 GeV/c(2), m(mu)* > 62.6 GeV/c(2)
and m(tau)* > 62.2 GeV/c(2) at 95% confidence level were established.
For single excited lepton production, upper limits on the ratio
lambda/m(l)* of the coupling of the excited charged lepton to its mass
were derived.

1996

Abreu, P
Adam, W
Adye, T
Agasi, E
Ajinenko, I and
Aleksan, R
Alekseev, GD
Alemany, R
Allport, PP
Almehed,
S
Amaldi, U
Amato, S
Andreazza, A
Andrieux, ML and
Antilogus, P
Apel, WD
Arnoud, Y
Asman, B
Augustin, JE
and Augustinus, A
Baillon, P
Bambade, P
Barao, F
Barate,
R
Barbi, M
Barbiellini, G
Bardin, DY
Baroncelli, A and
Barring, O
Barrio, JA
Bartl, W
Bates, MJ
Battaglia, M
and Baubillier, M
Baudot, J
Becks, KH
Begalli, M and
Beilliere, P
Belokopytov, Y
Benvenuti, AC
Berggren, M and
Bertini, D
Bertrand, D
Bianchi, F
Bigi, M
Bilenky, MS
and Billoir, P
Bloch, D
Blume, M
Bolognese, T
Bonesini,
M
Bonivento, W
Booth, PSL
Bosio, C
Botner, O and
Boudinov, E
Bouquet, B
Bourdarios, C
Bowcock, TJV
Bozzo,
M
Branchini, P
Brand, KD
Brenke, T
Brenner, RA and
Bricman, C
Brown, RCA
Bruckman, P
Brunet, JM
Bugge, L
and Buran, T
Burgsmueller, T
Buschmann, P
Buys, A and
Cabrera, S
Caccia, M
Calvi, M
Rozas, AJC
Camporesi, T
and Canale, V
Canepa, M
Cankocak, K
Cao, F
Carena, F and
Carroll, L
Caso, C
Gimenez, MVC
Cattai, A
Cavallo, FR
and Chabaud, V
Charpentier, P
Chaussard, L
Chauveau, J and
Checchia, P
Chelkov, GA
Chen, M
Chierici, R
Chliapnikov,
P
Chochula, P
Chorowicz, V
Cindro, V
Collins, P and
Contreras, JL
Contri, R
Cortina, E
Cosme, G
Cossutti, F
and Crawley, HB
Crennell, D
Crosetti, G
Maestro, JC and
Czellar, S
DahlJensen, E
Dehm, J
Dalmagne, B
Dam, M and
Damgaard, G
Dauncey, PD
Davenport, M
DaSilva, W
Defoix,
C
Deghorain, A
DellaRicca, G
Delpierre, P
Demaria, N and
DeAngelis, A
DeBoer, W
DeBrabandere, S
DeClercq, C and
DelaVaissiere, C
DeLotto, B
DeMin, A
DePaula, L and
DeSaintJean, C
Dijkstra, H
DiCiaccio, L
Djama, F and
Dolbeau, J
Donszelmann, M
Doroba, K
Dracos, M
Drees, J
and Drees, JA
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Durand, JD
Edsall, D
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Eigen, G
Ekelof, T
Ekspong, G
Elsing, M
Engel, JP and
Erzen, B
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Feindt, M and
Fenyuk, A
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Fichet, S
Filippas, TA
Firestone, A
and Fischer, PA
Foeth, H
Fokitis, E
Fontanelli, F and
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Franek, B
Frenkiel, P
Fries, DC
Frodesen, AG
and Fruhwirth, R
FuldaQuenzer, F
Fuster, J
Galloni, A and
Gamba, D
Gandelman, M
Garcia, C
Garcia, J
Gaspar, C and
Gasparini, U
Gavillet, P
Gazis, EN
Gele, D
Gerber, JP
and Gibbs, M
Gokieli, R
Golob, B
Gopal, G
Gorn, L and
Gorski, M
Gouz, Y
Gracco, V
Graziani, E
Grosdidier, G
and Grzelak, K
Gumenyuk, S
Gunnarsson, P
Gunther, M
Guy,
J
Hahn, F
Hahn, S
Hajduk, Z
Hallgren, A
Hamacher, K
and Hao, W
Harris, FJ
Hedberg, V
Henriques, R
Hernandez,
JJ
Herquet, P
Herr, H
Hessing, TL
Higon, E
Hilke, HJ
and Hill, TS
Holmgren, SO
Holt, PJ
Holthuizen, D and
Hoorelbeke, S
Houlden, M
Hrubec, J
Huet, K
Hultqvist, K
and Jackson, JN
Jacobsson, R
Jalocha, P
Janik, R and
Jarlskog, C
Jarlskog, G
Jarry, P
JeanMarie, B
Johansson,
EK
Jonsson, L
Jonsson, P
Joram, C
Juillot, P
Kaiser,
M
Kapusta, F
Karafasoulis, K
Karlsson, M
Karvelas, E and
Katsanevas, S
Katsoufis, EC
Keranen, R
Khokhlov, Y and
Khomenko, BA
Khovanski, NN
King, B
Kjaer, NJ
Klein, H
and Klovning, A
Kluit, P
Koene, B
Kokkinias, P and
Koratzinos, M
Korcyl, K
Kostioukhine, V
Kourkoumelis, C and
Kouznetsov, O
Kramer, PH
Krammer, M
Kreuter, C and
Kronkvist, I
Krumstein, Z
Krupinski, W
Kubinec, P and
Kucewicz, W
Kurvinen, K
Lacasta, C
Laktineh, I
Lamblot,
S
Lamsa, JW
Lanceri, L
Lane, DW
Langefeld, P
Lapin,
V
Last, I
Laugier, JP
Lauhakangas, R
Ledroit, F and
Lefebure, V
Legan, CK
Leitner, R
Lemoigne, Y
Lemonne, J
and Lenzen, G
Lepeltier, V
Lesiak, T
Libby, J
Liko, D
and Lindner, R
Lipniacka, A
Lippi, I
Loerstad, B
Loken,
JG
Lopez, JM
Loukas, D
Lutz, P
Lyons, L
MacNaughton,
J
Maehlum, G
Maio, A
Malychev, V
Mandl, F
Marco, J
and Marco, R
Marechal, B
Margoni, M
Marin, JC
Mariotti,
C
Markou, A
Maron, T
MartinezRivero, C
MartinezVidal, F
and Garcia, SMI
Matorras, F
Matteuzzi, C
Matthiae, G and
Mazzucato, M
McCubbin, M
McKay, R
McNulty, R
Medbo, J
and Merk, M
Meroni, C
Meyer, S
Meyer, WT
Miagkov, A and
Michelotto, M
Migliore, E
Mirabito, L
Mitaroff, WA and
Mjoernmark, U
Moa, T
Moeller, R
Moenig, K
Monge, MR and
Morettini, P
Mueller, H
Mundim, LM
Murray, WJ
Muryn, B
and Myatt, G
Naraghi, F
Navarria, FL
Navas, S
Nawrocki,
K
Negri, P
Nemecek, S
Neumann, W
Neumeister, N and
Nicolaidou, R
Nielsen, BS
Nieuwenhuizen, M
Nikolaenko, V and
Niss, P
Nomerotski, A
Normand, A
Novak, M and
OberschulteBeckmann, W
Obraztsov, V
Olshevski, AG
Onofre, A
and Orava, R
Osterberg, K
Ouraou, A
Paganini, P and
Paganoni, M
Pages, P
Palka, H
Papadopoulou, TD and
Papageorgiou, K
Pape, L
Parkes, C
Parodi, F
Passeri, A
and Pegoraro, M
Peralta, L
Pernegger, H
Pernicka, M and
Perrotta, A
Petridou, C
Petrolini, A
Petrovyck, M and
Phillips, HT
Piana, G
Pierre, F
Pimenta, M
Pindo, M and
Plaszczynski, S
Podobrin, O
Pol, ME
Polok, G
Poropat, P
and Pozdniakov, V
Prest, M
Privitera, P
Pukhaeva, N and
Pullia, A
Radojicic, D
Ragazzi, S
Rahmani, H
Rames, J
and Ratoff, PN
Read, AL
Reale, M
Rebecchi, P
Redaelli,
NG
Regler, M
Reid, D
Renton, PB
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EI
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Turluer, ML
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Tyndel, M
Tzamarias, S
Ueberschaer, B and
Ullaland, O
Uvarov, V
Valenti, G
Vallazza, E and
VanderVelde, C
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VanDam, P
vanDoninck, WK and
VanEldik, J
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W
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Weilhammer, P and
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Wickens, JH
Wielers, M
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Witek, M and
Woschnagg, K
Yip, K
Yushchenko, O
Zach, F
Zaitsev, A and
Zalewska, A
Zalewski, P
Zavrtanik, D
Zevgolatakos, E and
Zimin, NI
Zito, M
Zontar, D
Zucchelli, GC
Zumerle, G

PHYSICS LETTERS B

ELSEVIER SCIENCE BV

380

3-4

480-490

https://doi.org/10.1016/0370-2693(96)00672-7

10.1016/0370-2693(96)00672-7

https://pergamos.lib.uoa.gr/uoa/dl/object/3048415