Inclusive Sigma(-) and Lambda(1520) production in hadronic Z decays

Επιστημονική δημοσίευση - Άρθρο Περιοδικού uoadl:3053136 41 Αναγνώσεις

Μονάδα:
Ερευνητικό υλικό ΕΚΠΑ
Τίτλος:
Inclusive Sigma(-) and Lambda(1520) production in hadronic Z decays
Γλώσσες Τεκμηρίου:
Αγγλικά
Περίληψη:
Production of Sigma(-) and Lambda(1520) in hadronic Z decays has been
measured using the DELPHI detector at LEP. The Sigma(-) is directly
reconstructed as a charged track in the DELPHI microvertex detector and
is identified by its Sigma –> n pi decay leading to a kink between the
Sigma(-) and pi-track. The reconstruction of the Lambda(1520) resonance
relies strongly on the particle identification capabilities of the
barrel Ring Imaging Cherenkov detector and on the ionisation loss
measurement of the TPC. Inclusive production spectra are measured for
both particles. The production rates are measured to be
[NSigma-/N-Z(had)] = 0.081 +/- 0.002 +/- 0.010,
[N-Lambda(1520)/N-Z(had)] = 0.029 +/- 0.005 +/- 0.005.
The production rate of the Lambda(1520) suggests that a large fraction
of the stable baryons descend from orbitally excited baryonic states. It
is shown that the baryon production rates in Z decays follow a universal
phenomenological law related to isospin, strangeness and mass of the
particles. (C) 2000 Elsevier Science B.V. All rights reserved.
Έτος δημοσίευσης:
2000
Συγγραφείς:
Abreu, P
Adam, W
Adye, T
Adzic, P
Ajinenko, I and
Albrecht, Z
Alderweireld, T
Alekseev, GD
Alemany, R and
Allmendinger, T
Allport, PP
Almehed, S
Amaldi, U and
Amapane, N
Amato, S
Anassontzis, EG
Andersson, P and
Andreazza, A
Andringa, S
Antilogus, P
Apel, WD
Arnoud, Y
and Asman, B
Augustin, JE
Augustinus, A
Baillon, P and
Ballestrero, A
Bambade, P
Barao, F
Barbiellini, G and
Barbier, R
Bardin, DY
Barker, G
Baroncelli, A
Battaglia,
M
Baubillier, M
Becks, KH
Begalli, M
Behrmann, A and
Beilliere, P
Belokopytov, Y
Benekos, NC
Benvenuti, AC and
Berat, C
Berggren, M
Bertrand, D
Besancon, M
Bigi, M and
Bilenky, MS
Bizouard, MA
Bloch, D
Blom, HM
Bonesini, M
and Boonekamp, M
Booth, PSL
Borisov, G
Bosio, C
Botner,
O
Boudinov, E
Bouquet, B
Bourdarios, C
Bowcock, TJV and
Boyko, I
Bozovic, I
Bozzo, M
Bracko, M
Branchini, P and
Brenner, RA
Bruckman, P
Brunet, JM
Bugge, L
Buran, T and
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
Chabaud, V 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
Crepe, S
and Crosetti, G
Maestro, JC
Czellar, S
Davenport, M
Da
Silva, W
Della Ricca, G
Delpierre, P
Demaria, N
De
Nagelis, A
De Boer, W
De Clercq, C
De Lotto, B
De Min, A
and De Paula, L
Dijkstra, H
Di Ciaccio, L
Dolbeau, J and
Doroba, K
Dracos, M
Drees, J
Dris, M
Duperrin, A and
Durand, JD
Eigen, G
Ekelof, T
Ekspong, G
Ellert, M and
Elsing, M
Engel, JP
Santo, ME
Fanourakis, G and
Fassouliotis, D
Fayot, J
Feindt, M
Ferrer, A and
Ferrer-Ribas, E
Ferro, F
Fichet, S
Firestone, A and
Flagmeyer, U
Foeth, H
Fokitis, E
Fontanelli, F
Franek, B
and Frodesen, AG
Fruhwirth, R
Fulda-Quenzer, F
Fuster, J and
Galloni, A
Gamba, D
Gamblin, S
Gandelman, M
Garcia, C
and Gaspar, C
Gaspar, M
Gasparini, U
Gavillet, P
Gazis,
EN
Gele, D
Geralis, T
Gerdyukov, L
Ghodbane, N
Gil,
I
Glege, F
Gokieli, R
Golob, B
Gomez-Ceballos, G and
Goncalves, P
Caballero, IG
Gopal, G
Gorn, L
Gouz, Y and
Gracco, V
Grahl, J
Graziani, E
Gris, P
Grosdidier, G and
Grzelak, K
Guy, J
Haag, C
Hahn, F
Hahn, S
Haider, S
and Hallgren, A
Hamacher, K
Hansen, J
Harris, FJ
Hauler,
F
Hedberg, V
Heising, S
Hernandez, JJ
Herquet, P and
Herr, H
Hessing, TL
Heuser, JM
Higon, E
Holmgren, SO and
Holt, PJ
Hoorelbeke, S
Houlden, M
Hrubec, J
Huber, M and
Huet, K
Hughes, GJ
Hultqvist, K
Jackson, JN
Jacobsson, R
and Jalocha, P
Janik, R
Jarlskog, C
Jarlskog, G
Jarry, P
and Jean-Marie, B
Jeans, D
Johansson, EK
Jonsson, P and
Joram, C
Juillot, P
Jungermann, L
Kapusta, F and
Karafasoulis, K
Katsanevas, S
Katsoufis, EC
Keranen, R and
Kernel, G
Kersevan, BP
Khokhlov, Y
Khomenko, BA and
Khovanski, NN
Kiiskinen, A
King, B
Kinvig, A
Kjaer, NJ
and Klapp, O
Klein, H
Kluit, P
Kokkinias, P and
Kostioukhine, V
Kourkoumelis, C
Kouznetsov, O
Krammer, M and
Kriznic, E
Krumstein, Z
Kubinec, P
Kurowska, J
Kurvinen,
K
Lamsa, JW
Lane, DW
Laugier, JP
Lauhakangas, R and
Leder, G
Ledroit, F
Lefebure, V
Leinonen, L
Leisos, A
and Leitner, R
Lenzen, G
Lepeltier, V
Lesiak, T and
Lethuillier, M
Libby, J
Liebig, W
Liko, D
Lipniacka, A
and Lippi, I
Loerstad, B
Loken, JG
Lopes, JH
Lopez, JM
and Lopez-Fernandez, R
Loukas, D
Lutz, P
Lyons, L and
MacNaughton, J
Mahon, JR
Maio, A
Malek, A
Lutz, P and
Lyons, L
MacNaughton, J
Mahon, JR
Maio, A
Malek, A and
Malmgren, TGM
Maltezos, S
Malychev, V
Mandl, F
Marco, J
and Marco, R
Marechal, B
Margoni, M
Marin, JC
Mariotti,
C
Markou, A
Martinez-Rivero, C
Garcia, SMI
Masik, J and
Matroyiannopoulos, N
Matorras, F
Matteuzzi, C
Matthiae, G
and Mazzucato, F
Mazzucato, M
McCubbin, M
McKay, R and
McNulty, R
McPherson, G
Meroni, C
Meyer, WT
Migliore, E
and Mirabito, L
Mitaroff, WA
Mjoernmark, U
Moa, T
Moch,
M
Moeller, R
Moenig, K
Monge, MR
Moraes, D
Moreau, X
and Morettini, P
Morton, G
Mueller, U
Muenich, K and
Mulders, M
Mulet-Marquis, C
Muresan, R
Murray, WJ
Muryn,
B
Myatt, G
Myklebust, T
Naraghi, F
Nassiakou, M and
Navarria, FL
Nawrocki, K
Negri, P
Neufeld, N
Nicolaidou,
R
Nielsen, BS
Niezurawski, P
Nikolenko, M
Nomokonov, V
and Nygren, A
Obraztsov, V
Olshevaki, AG
Onofre, A and
Orava, R
Orazi, G
Osterberg, K
Ouraou, A
Oyanguren, A
and Paganoni, M
Paiano, S
Pain, R
Paiva, R
Palacios, J
and Palka, H
Papadopoulou, TD
Pape, L
Parkes, C
Parodi,
F
Parzefall, U
Passeri, A
Passon, O
Pavel, T and
Pegoraro, M
Peralta, L
Pernicka, M
Perrotta, A
Petridou,
C
Petrolini, A
Phillips, HT
Pierre, F
Pimenta, M and
Piotto, E
Podobnik, T
Pol, ME
Polok, G
Poropat, P and
Pozdniakov, V
Privitera, P
Pukhaeva, N
Pullia, A and
Radojicic, D
Ragazzi, S
Rahmani, H
Rames, J
Ratoff, PN
and Read, AL
Rebecchi, P
Redaelli, NG
Regler, M
Rehn, J
and Reid, D
Reinertsen, P
Reinhardt, R
Renton, PB and
Resvanis, LK
Richard, F
Ridky, J
Rinaudo, G
Ripp-Baudot,
I
Rohne, O
Romero, A
Ronchese, P
Rosenberg, EI and
Rosinksy, P
Roudeau, P
Rovelli, T
Royon, C and
Ruhlmann-Kleider, V
Ruiz, A
Saarikko, H
Sacquin, Y and
Sadovsky, A
Sajot, G
Salt, J
Sampsonidis, D
Sannino, M
and Schwemling, P
Schwering, B
Schwickerath, U
Scuri, F and
Seager, P
Sedykh, Y
Seemann, F
Segar, AM
Seibert, N and
Sekulin, R
Shellard, RC
Siebel, M
Simard, L
Simonetto, F
and Sisakian, AN
Smadja, G
Smirnov, N
Smirnova, O
Smith,
GR
Sokolov, A
Solovianov, O
Sopczak, A
Sosnowski, R and
Spassov, T
Spiriti, E
Squarcia, S
Stanescu, C
Stanic, S
and Stanitzki, M
Stevenson, K
Stocchi, A
Strauss, J and
Strub, R
Stugu, B
Szczekowski, M
Szeptycka, M
Tabarelli,
T
Taffard, A
Tegenfeldt, F
Terranova, F
Thomas, J and
Timmermans, J
Tinti, N
Tkatchev, LG
Tobin, M
Todorova, S
and Tomaradze, A
Tome, B
Tonazzo, A
Tortora, L
Tortosa,
P
Transtromer, G
Treille, D
Tristram, G
Trochimczuk, M
and Troncon, C
Turluer, ML
Tyapkin, IA
Tyapkin, P and
Tzamarias, S
Ullaland, O
Uvarov, V
Valenti, G
Vallazza,
E
Van Dam, P
Van den Boeck, W
Van Eldik, J
Van
Lysebetten, A
van Remortel, N
Van Vulpen, I
Vegni, G and
Ventura, L
Venus, W
Verbeure, F
Verdier, P
Verlato, M
and Vertogradov, LS
Verzi, V
Vilanova, D
Vitale, L and
Vlasov, E
Vodopyanov, AS
Voulgaris, G
Vrba, V
Wahlen, H
and Walck, C
Washbrook, AJ
Weiser, C
Wicke, D
Wickens,
JH
Wilkinson, GR
Winter, M
Witek, M
Wolf, G
Yi, J
and Yushchenko, O
Zalewska, A
Zalewski, P
Zavrtanik, D and
Zevgolatakos, E
Zimin, NI
Zintchenko, A
Zoller, P and
Zucchelli, GC
Zumerle, G
Beckmann, WOG
DELPHI Collaboration
Περιοδικό:
PHYSICS LETTERS B
Εκδότης:
Elsevier
Τόμος:
475
Αριθμός / τεύχος:
3-4
Σελίδες:
429-447
Επίσημο URL (Εκδότης):
DOI:
10.1016/S0370-2693(00)00081-2
Το ψηφιακό υλικό του τεκμηρίου δεν είναι διαθέσιμο.