SEARCHES FOR HEAVY NEUTRINOS FROM Z-DECAYS

Επιστημονική δημοσίευση - Άρθρο Περιοδικού uoadl:3044847 23 Αναγνώσεις

Μονάδα:
Ερευνητικό υλικό ΕΚΠΑ
Τίτλος:
SEARCHES FOR HEAVY NEUTRINOS FROM Z-DECAYS
Γλώσσες Τεκμηρίου:
Αγγλικά
Περίληψη:
We have searched for possible fourth family heavy neutrinos, pair
produced in Z0 decays, in a sample of about 112 000 hadronic Z0 final
states collected with the DELPHI detector. For all mixing matrix
elements we exclude a new Dirac neutrino lighter than 44.5 GeV at a 95%
confidence level, if the neutrino couples to the electron or muon
family, and lighter than 44.0 GeV, if the neutrino couples to the tau
family. Depending on the values of the mixing element and to which
lepton family the neutrino couples, we obtain mass limits up to 46.2
GeV. For all mixing matrix elements we exclude a new Majorana neutrino
lighter than 39.0 GeV, if it couples to the electron or the muon family,
and lighter than 38.2 GeV, if it couples to the tau family. Depending on
the values of the mixing matrix element and to which lepton family the
neutrino couples, we obtain mass limits up to 44.7 GeV. We also exclude
stable new Dirac neutrinos lighter than 45.0 GeV and new Majorana
neutrinos lighter than 39.5 GeV.
Έτος δημοσίευσης:
1992
Συγγραφείς:
ABREU, P
ADAM, W
ADAMI, F
ADYE, T
AKESSON, T and
ALEKSEEV, GD
ALLEN, P
ALMEHED, S
ALVSVAAG, SJ
AMALDI, U
and ANASSONTZIS, E
ANTILOGUS, P
APEL, WD
APSIMON, RJ and
ASMAN, B
ASTIER, P
AUGUSTIN, JE
AUGUSTINUS, A
BAILLON, P
and BAMBADE, P
BARAO, F
BARATE, R
BARBIELLINI, G
BARDIN,
DY
BARONCELLI, A
BARRING, O
BARTL, W
BATES, MJ and
BATTAGLIA, M
BAUBILLIER, M
BECKS, KH
BEESTON, CJ and
BEGALLI, M
BEILLIERE, P
BELOKOPYTOV, Y
BELTRAN, P and
BENEDIC, D
BENLLOCH, JM
BERGGREN, M
BERTRAND, D
BIANCHI,
F
BILENKY, MS
BILLOIR, P
BJARNE, J
BLOCH, D
BLYTH, S
and BOCCI, V
BOGOLUBOV, PN
BOLOGNESE, T
BONAPART, M and
BONESINI, M
BONIVENTO, W
BOOTH, PSL
BORATAV, M
BORGEAUD,
P
BORISOV, G
BORNER, H
BOSIO, C
BOSTJANCIC, B and
BOTNER, O
BOUQUET, B
BOURDARIOS, C
BOZZO, M
BRAIBANT, S
and BRANCHINI, P
BRAND, KD
BRENNER, RA
BRICMAN, C
BROWN,
RCA
BRUMMER, N
BRUNET, JM
BUGGE, L
BURAN, T and
BURMEISTER, H
BUYTAERT, JAMA
CACCIA, M
CALVI, M
ROZAS,
AJC
CAMPION, A
CAMPORESI, T
CANALE, V
CAO, F
CARENA,
F
CARROLL, L
CASO, C
CASTELLI, E
GIMENEZ, MVC and
CATTAI, A
CAVALLO, FR
CERRITO, L
CHAN, A
CHAPKIN, M and
CHARPENTIER, P
CHAUSSARD, L
CHECCHIA, P
CHELKOV, GA and
CHEVALIER, L
CHLIAPNIKOV, P
CHOROWICZ, V
CIRIO, R
CLARA,
MP
COLLINS, P
CONTRERAS, JL
CONTRI, R
COSME, G and
COUCHOT, F
CRAWLEY, HB
CRENNELL, D
CROSETTI, G
CROZON, M
and MAESTRO, JC
CZELLAR, S
DAGORET, S
DAHLJENSEN, E and
DALMAGNE, B
DAM, M
DAMGAARD, G
DARBO, G
DAUBIE, E and
DAUNCEY, PD
DAVENPORT, M
DAVID, P
DEFOIX, C
DELIKARIS, D
and DELORME, S
DELPIERRE, P
DEMARIA, N
DEANGELIS, A and
DEBEER, M
DEBOECK, H
DEBOER, W
DECLERCQ, C
LASO, MDMD
and DEGROOT, N
DELAVAISSIERE, C
DELOTTO, B
DEMIN, A and
DIJKSTRA, H
DICIACCIO, L
DJAMA, F
DOLBEAU, J
DOLL, O and
DONSZELMANN, M
DOROBA, K
DRACOS, M
DREES, J
DRIS, M and
DUFOUR, Y
DULINSKI, W
DZHELYADIN, R
EEK, LO
EEROLA, PAM
and EKELOF, T
EKSPONG, G
PEISERT, AE
ENGEL, JP and
FASSOULIOTIS, D
FEINDT, M
ALONSO, MF
FERRER, A
FILIPPAS,
TA
FIRESTONE, A
FOETH, H
FOKITIS, E
FOLEGATI, P and
FONTANELLI, F
FORBES, KAJ
FORSBACH, H
FRANEK, B and
FRENKIEL, P
FRIES, DC
FRODESEN, AG
FRUHWIRTH, R and
FULDAQUENZER, F
FURNIVAL, K
FURSTENAU, H
FUSTER, J and
GALEAZZI, G
GAMBA, D
GARCIA, C
GARCIA, J
GASPAR, C and
GASPARINI, U
GAVILLET, P
GAZIS, EN
GERBER, JP and
GIACOMELLI, P
GLITZA, KW
GOKIELI, R
GOLOVATYUK, VM and
CADENAS, JJGY
GOOBAR, A
GOPAL, G
GORSKI, M
GRACCO, V and
GRANT, A
GRARD, F
GRAZIANI, E
GROSDIDIER, G
GROSS, E and
GROSSEWIESMANN, P
GROSSETETE, B
GUY, J
HAHN, F
HAHN, M
and HAIDER, S
HAJDUK, Z
HAKANSSON, A
HALLGREN, A and
HAMACHER, K
DEMONCHENAULT, GH
HARRIS, FJ
HECK, BW and
HENKES, T
HERBST, I
HERNANDEZ, JJ
HERQUET, P
HERR, H and
HIETANEN, I
HIGGINS, CO
HIGON, E
HILKE, HJ
HODGSON, SD
and HOFMOKL, T
HOLMES, R
HOLMGREN, SO
HOLTHUIZEN, D and
HONORE, PF
HOOPER, JE
HOULDEN, M
HRUBEC, J
HULTH, PO and
HULTQVIST, K
HUSSON, D
IOANNOU, P
ISENHOWER, D
IVERSEN,
PS
JACKSON, JN
JALOCHA, P
JARLSKOG, G
JARRY, P and
JEANMARIE, B
JOHANSSON, EK
JOHNSON, D
JONKER, M
JONSSON,
L
JUILLOT, P
KALKANIS, G
KALMUS, G
KAPUSTA, F and
KATSANEVAS, S
KATSOUFIS, EC
KERANEN, R
KESTEMAN, J and
KHOMENKO, BA
KHOVANSKI, NN
KING, B
KJAER, NJ
KLEIN, H
and KLEMPT, W
KLOVNING, A
KLUIT, P
KOCHMEHRIN, A
KOEHNE,
JH
KOENE, B
KOKKINIAS, P
KOPF, M
KORATZINOS, M and
KORCYL, K
KORYTOV, AV
KOSTIUKHIN, V
KOURKOUMELIS, C and
KREUZBERGER, T
KROLIKOWSKI, J
KRONKVIST, I
KRSTIC, J and
KRUENERMARQUIS, U
KRUPINSKI, W
KUCEWICZ, W
KURVINEN, K and
LACASTA, C
LAMBROPOULOS, C
LAMSA, JW
LANCERI, L
LAPIN, V
and LAUGIER, JP
LAUHAKANGAS, R
LEDER, G
LEDROIT, F and
LEITNER, R
LEMOIGNE, Y
LEMONNE, J
LENZEN, G
LEPELTIER, V
and LETESSIERSELVON, A
LIEB, E
LIKO, D
LILLETHUN, E and
LINDGREN, J
LIPNIACKA, A
LIPPI, I
LLOSA, R
LOERSTAD, B
and LOKAJICEK, M
LOKEN, JG
LOPEZFERNANDEZ, A
AGUERA, MAL and
LOS, M
LOUKAS, D
LOUNIS, A
LOZANO, JJ
LUTZ, P
LYONS,
L
MAEHLUM, G
MAGNUSSEN, N
MAILLARD, J
MALTEZOS, A and
MANDL, F
MARCO, J
MARGONI, M
MARIN, JC
MARKOU, A and
MARTI, S
MATHIS, L
MATORRAS, F
MATTEUZZI, C
MATTHIAE, G
and MAZZUCATO, M
MCCUBBIN, M
MCKAY, R
MCNULTY, R and
MENICHETTI, E
MEOLA, G
MERONI, C
MEYER, WT
MICHELOTTO, M
and MITAROFF, WA
MITSELMAKHER, GV
MJOERNMARK, U
MOA, T and
MOELLER, R
MOENIG, K
MONGE, MR
MORETTINI, P
MUELLER, H
and MURRAY, WJ
MURYN, B
MYATT, G
NARAGHI, F
NAUKORZEN, U
and NAVARRIA, FL
NEGRI, P
NIELSEN, BS
NIJJHAR, B and
NIKOLAENKO, V
OBRAZTSOV, V
OESTERBERG, K
OLSHEVSKI, AG and
ORAVA, R
OSTANKOV, A
OURAOU, A
PAGANONI, M
PAIN, R and
PALKA, H
PAPADOPOULOU, T
PAPE, L
PASSERI, A
PEGORARO, M
and PENNANEN, J
PEREVOZCHIKOV, V
PERNICKA, M
PERROTTA, A and
PIERRE, F
PIMENTA, M
PINGOT, O
POL, ME
POLOK, G and
POROPAT, P
PRIVITERA, P
PULLIA, A
RADOJICIC, D
RAGAZZI,
S
RATOFF, PN
READ, AL
REDAELLI, NG
REGLER, M
REID, D
and RENTON, PB
RESVANIS, LK
RICHARD, F
RICHARDSON, M and
RIDKY, J
RINAUDO, G
RODITI, I
ROMERO, A
RONCAGLIOLO, I
and RONCHESE, P
RONNQVIST, C
ROSENBERG, EI
ROSSI, U and
ROSSO, E
ROUDEAU, P
ROVELLI, T
RUCKSTUHL, W
RUHLMANN, V
and RUIZ, A
RYBICKI, K
SAARIKKO, H
SACQUIN, Y
SAJOT, G
and SALT, J
SANCHEZ, E
SANCHEZ, J
SANNINO, M
SCHAEFFER,
M
SCHAEL, S
SCHNEIDER, H
SCHYNS, MAE
SCURI, F
SEGAR,
AM
SEKULIN, R
SESSA, M
SETTE, G
SEUFERT, R
SHELLARD,
RC
SIEGRIST, P
SIMONETTI, S
SIMONETTO, F
SISSAKIAN, AN
and SKAALI, TB
SKJEVLING, G
SMADJA, G
SMIRNOV, N
SMITH,
GR
SOSNOWSKI, R
SPASSOFF, TS
SPIRITI, E
SQUARCIA, S and
STAECK, H
STANESCU, C
STAVROPOULOS, G
STICHELBAUT, F and
STOCCHI, A
STRAUSS, J
STRUB, R
SZCZEKOWSKI, M
SZEPTYCKA,
M
SZYMANSKI, P
TABARELLI, T
TAVERNIER, S
TCHIKILEV, O
and THEODOSIOU, GE
TILQUIN, A
TIMMERMANS, J
TIMOFEEV, VG and
TKATCHEV, LG
TODOROV, T
TOET, DZ
TOKER, O
TORASSA, E and
TORTORA, L
TRAINOR, MT
TREILLE, D
TREVISAN, U
TRISCHUK,
W
TRISTRAM, G
TRONCON, C
TSIROU, A
TSYGANOV, EN and
TURALA, M
TURCHETTA, R
TURLUER, ML
TUUVA, T
TYAPKIN, IA
and TYNDEL, M
TZAMARIAS, S
UEBERSCHAER, B
UEBERSCHAER, S and
ULLALAND, O
UVAROV, V
VALENTI, G
VALLAZZA, E
FERRER, JAV
and VANDERVELDE, C
VANAPELDOORN, GW
VANDAM, P
VANDONINCK, WK
and VARELA, J
VAZ, P
VEGNI, G
VENTURA, L
VENUS, W and
VERBEURE, F
VERTOGRADOV, LS
VIBERT, L
VILANOVA, D and
VITALE, L
VLASOV, E
VLASOV, EV
VLASSOPOULOS, S and
VODOPYANOV, AS
VOLLMER, M
VOLPONI, S
VOULGARIS, G and
VOUTILAINEN, M
VRBA, V
WAHLEN, H
WALCK, C
WALDNER, F and
WAYNE, M
WEILHAMMER, P
WERNER, J
WETHERELL, AM
WICKENS,
JH
WIKNE, J
WILKINSON, GR
WILLIAMS, WSC
WINTER, M and
WORMALD, D
WORMSER, G
WOSCHNAGG, K
YAMDAGNI, N
YEPES, P
and ZAITSEV, A
ZALEWSKA, A
ZALEWSKI, P
ZAVRTANIK, D and
ZEVGOLATAKOS, E
ZHANG, G
ZIMIN, NI
ZITO, M
ZITOUN, R and
FUNCHAL, RZ
ZUMERLE, G
ZUNIGA, J
Περιοδικό:
PHYSICS LETTERS B
Εκδότης:
ELSEVIER SCIENCE BV
Τόμος:
274
Αριθμός / τεύχος:
2
Σελίδες:
230-238
Επίσημο URL (Εκδότης):
DOI:
10.1016/0370-2693(92)90528-C
Το ψηφιακό υλικό του τεκμηρίου δεν είναι διαθέσιμο.