MEASUREMENT OF LAMBDA-B PRODUCTION AND LIFETIME IN Z0 HADRONIC DECAYS

Επιστημονική δημοσίευση - Άρθρο Περιοδικού uoadl:3045800 29 Αναγνώσεις

Μονάδα:
Ερευνητικό υλικό ΕΚΠΑ
Τίτλος:
MEASUREMENT OF LAMBDA-B PRODUCTION AND LIFETIME IN Z0 HADRONIC DECAYS
Γλώσσες Τεκμηρίου:
Αγγλικά
Περίληψη:
Evidence for the production of b-flavoured baryons in Z0 decays is
reported from the analysis of 365 000 hadronic events collected by the
DELPHI detector. Assuming that most of the weakly decaying b flavoured
baryons produced by the Z0 are LAMBDA(b), the observed signal of
(LAMBDAl- + LAMBDAl+BAR) pairs, where l is a high transverse momentum
lepton in the same jet as the LAMBDA, leads to a production rate: f (b
–> LAMBDA(b)) x Br(LAMBDA(b) –> LAMBDAlnuX) = (0.41 +/- 0.13 +/-
0.09)%. Using a sample of 18 reconstructed LAMBDA(b) decay vertices,
the lifetime is determined to be tau(LAMBDA(b)) = ( 1.04(-0.38)+0.48 +/-
0.10) ps.
Έτος δημοσίευσης:
1993
Συγγραφείς:
ABREU, P
ADAM, W
ADYE, T
AGASI, E
AJINENKO, I and
ALEKSAN, R
ALEKSEEV, GD
ALGERI, A
ALLEN, P
ALMEHED, S
and ALVSVAAG, SJ
AMALDI, U
ANDREAZZA, A
ANTILOGUS, P and
APEL, WD
APSIMON, RJ
ARNOUD, Y
ASMAN, B
AUGUSTIN, JE and
AUGUSTINUS, A
BAILLON, P
BAMBADE, P
BARAO, F
BARATE, R
and BARBIELLINI, G
BARDIN, DY
BARKER, GJ
BARONCELLI, A and
BARRING, O
BARRIO, JA
BARTL, W
BATES, MJ
BATTAGLIA, M
and BAUBILLIER, M
BECKS, KH
BEESTON, CJ
BEGALLI, M and
BEILLIERE, P
BELOKOPYTOV, Y
BELTRAN, P
BENEDIC, D and
BENVENUTI, AC
BERGGREN, M
BERTRAND, D
BIANCHI, F and
BILENKY, MS
BILLOIR, P
BJARNE, J
BLOCH, D
BLYTH, S and
BOCCI, V
BOGOLUBOV, PN
BOLOGNESE, T
BONESINI, M and
BONIVENTO, W
BOOTH, PSL
BORISOV, G
BORNER, H
BOSIO, C
and BOSTJANCIC, B
BOSWORTH, S
BOTNER, O
BOUQUET, B and
BOURDARIOS, C
BOWCOCK, TJV
BOZZO, M
BRAIBANT, S and
BRANCHINI, P
BRAND, KD
BRENNER, RA
BRIAND, H
BRICMAN, C
and BROWN, RCA
BRUMMER, N
BRUNET, JM
BUGGE, L
BURAN, T
and BURMEISTER, H
BUYTAERT, JAMA
CACCIA, M
CALVI, M and
ROZAS, AJC
CAMPION, R
CAMPORESI, T
CANALE, V
CAO, F and
CARENA, F
CARROLL, L
CASO, C
GIMENEZ, MVC
CATTAI, A and
CAVALLO, FR
CERRITO, L
CHABAUD, V
CHAN, A
CHAPKIN, M and
CHARPENTIER, P
CHAUSSARD, L
CHAUVEAU, J
CHECCHIA, P and
CHELKOV, GA
CHEVALIER, L
CHLIAPNIKOV, P
CHOROWICZ, V and
CHRIN, JTM
COLLINS, P
CONTRERAS, JL
CONTRI, R
CORTINA, E
and COSME, G
COUCHOT, F
CRAWLEY, HB
CRENNELL, D and
CROSETTI, G
CROZON, M
MAESTRO, JC
CZELLAR, S
DAHLJENSEN,
E
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and DAUNCEY, PD
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DASILVA,
W
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DELPIERRE, P
DEMARIA, N
DEANGELIS, A and
DEBOECK, H
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LASO, MDMD
DEGROOT, N
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DOROBA, K
DRACOS,
M
DREES, J
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DUPONT, F
EDSALL, D and
EEK, LO
EEROLA, PAM
EHRET, R
EKELOF, T
EKSPONG, G and
PEISERT, AE
ENGEL, JP
ERSHAIDAT, N
FASSOULIOTIS, D and
FEINDT, M
FENYUK, A
ALONSO, MF
FERRER, A
FILIPPAS, TA
and FIRESTONE, A
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FONTANELLI, F and
FORBES, KAJ
FOUSSET, JL
FRANCON, S
FRANEK, B
FRENKIEL, P
and FRIES, DC
FRODESEN, AG
FRUHWIRTH, R
FULDAQUENZER, F and
FURNIVAL, K
FURSTENAU, H
FUSTER, J
GAMBA, D
GARCIA, C
and GARCIA, J
GASPAR, C
GASPARINI, U
GAVILLET, P
GAZIS,
EN
GERBER, JP
GIACOMELLI, P
GOKIELI, R
GOLOB, B and
GOLOVATYUK, VM
GOMEZ, JJ
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GORN, L and
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GRACCO, V
GRANT, A
GRARD, F
GRAZIANI, E and
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GROSSEWIESMANN, P
GROSSETETE, B and
GUY, J
HAEDINGER, U
HAHN, F
HAHN, M
HAIDER, S and
HAJDUK, Z
HAKANSSON, A
HALLGREN, A
HAMACHER, K and
DEMONCHENAULT, GH
HAO, W
HARRIS, FJ
HEDBERG, V
HENKES, T
and HERNANDEZ, JJ
HERQUET, P
HERR, H
HESSING, TL and
HIETANEN, I
HIGGINS, CO
HIGON, E
HILKE, HJ
HODGSON, SD
and HOFMOKL, T
HOLMGREN, SO
HOLTHUIZEN, D
HONORE, PF and
HOOPER, JE
HOULDEN, M
HRUBEC, J
HUET, K
HULTH, PO and
HULTQVIST, K
IOANNOU, P
IVERSEN, PS
JACKSON, JN
JALOCHA,
P
JARLSKOG, G
JARRY, P
JEANMARIE, B
JOHANSSON, EK and
JOHNSON, D
JONKER, M
JONSSON, L
JUILLOT, P
KALKANIS, G
and KALMUS, G
KAPUSTA, F
KARLSSON, M
KARVELAS, E and
KATSANEVAS, S
KATSOUFIS, EC
KERANEN, R
KESTEMAN, J and
KHOMENKO, BA
KHOVANSKI, NN
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KLEIN, H
and KLOVNING, A
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KOENE,
B
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KURVINEN, K
LACASTA, C and
LAMBROPOULOS, C
LAMSA, JW
LANCERI, L
LAPIN, V
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JP
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LEDROIT, F
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LOKEN, JG
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LOUKAS, D and
LOZANO, JJ
LUTZ, P
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MAEHLUM, G
MAILLARD, J and
MAIO, A
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R
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MIKULEC, I
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MJOERNMARK, U
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MOELLER, R
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K
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NIELSEN, BS
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A
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F
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VRBA, V
WAHLEN, H and
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WEIERSTALL, M
WEILHAMMER, P
and WERNER, J
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WICKENS, JH
WILKINSON, GR and
WILLIAMS, WSC
WINTER, M
WITEK, M
WORMSER, G
WOSCHNAGG, K
and YAMDAGNI, N
YEPES, P
ZAITSEV, A
ZALEWSKA, A and
ZALEWSKI, P
ZAVRTANIK, D
ZEVGOLATAKOS, E
ZHANG, G
ZIMIN,
NI
ZITO, M
ZUBERI, R
FUNCHAL, RZ
ZUMERLE, G
ZUNIGA,
J
Περιοδικό:
PHYSICS LETTERS B
Εκδότης:
Elsevier
Τόμος:
311
Αριθμός / τεύχος:
1-4
Σελίδες:
379-390
Επίσημο URL (Εκδότης):
DOI:
10.1016/0370-2693(93)90585-6
Το ψηφιακό υλικό του τεκμηρίου δεν είναι διαθέσιμο.