Search for pentaquarks in the hadronic decays of the Z boson with the DELPHI detector at LEP

Επιστημονική δημοσίευση - Άρθρο Περιοδικού uoadl:3074318 35 Αναγνώσεις

Μονάδα:
Ερευνητικό υλικό ΕΚΠΑ
Τίτλος:
Search for pentaquarks in the hadronic decays of the Z boson with the DELPHI detector at LEP
Γλώσσες Τεκμηρίου:
Αγγλικά
Περίληψη:
The quark model does not exclude states composed of more than three quarks, like pentaquark systems. Controversial evidence for such states has been published in the last years, in particular: for a strange pentaquark Θ (1540)+; for a double-strange state, the Ξ (1862)- -, subsequently called Φ (1860)- -; and for a charmed state, the Θc (3100)0. If confirmed, a full pentaquark family might exist; such pentaquark states could be produced in e+ e- annihilations near the Z energy. In this Letter a search for pentaquarks is described using the DELPHI detector at LEP, characterized by powerful particle identification sub-systems crucial in the separation of the signal from the background for these states. At 95% CL, upper limits are set on the production rates 〈 N 〉 of such particles and their charge-conjugate state per Z decay: 〈 NΘ+ 〉 × Br (Θ+ → p KS 0) < 5.1 × 10-4, 〈 NΘ+ + 〉 < 1.6 × 10-3, 〈 NΦ (1860)- - 〉 × Br (Φ (1860)- - → Ξ- π-) < 2.9 × 10-4, 〈 NΘc (3100)0 〉 × Br (Θc (3100)0 → D* + over(p, ̄)) < 8.8 × 10-4. © 2007 Elsevier B.V. All rights reserved.
Έτος δημοσίευσης:
2007
Συγγραφείς:
Abdallah, J.
Abreu, P.
Adam, W.
Adzic, P.
Albrecht, T.
Alemany-Fernandez, R.
Allmendinger, T.
Allport, P.P.
Amaldi, U.
Amapane, N.
Amato, S.
Anashkin, E.
Andreazza, A.
Andringa, S.
Anjos, N.
Antilogus, P.
Apel, W.-D.
Arnoud, Y.
Ask, S.
Asman, B.
Augustin, J.E.
Augustinus, A.
Baillon, P.
Ballestrero, A.
Bambade, P.
Barbier, R.
Bardin, D.
Barker, G.J.
Baroncelli, A.
Battaglia, M.
Baubillier, M.
Becks, K.-H.
Begalli, M.
Behrmann, A.
Ben-Haim, E.
Benekos, N.
Benvenuti, A.
Berat, C.
Berggren, M.
Bertrand, D.
Besancon, M.
Besson, N.
Bloch, D.
Blom, M.
Bluj, M.
Bonesini, M.
Boonekamp, M.
Booth, P.S.L.
Borisov, G.
Botner, O.
Bouquet, B.
Bowcock, T.J.V.
Boyko, I.
Bracko, M.
Brenner, R.
Brodet, E.
Bruckman, P.
Brunet, J.M.
Buschbeck, B.
Buschmann, P.
Calvi, M.
Camporesi, T.
Canale, V.
Carena, F.
Castro, N.
Cavallo, F.
Chapkin, M.
Charpentier, Ph.
Checchia, P.
Chierici, R.
Chliapnikov, P.
Chudoba, J.
Chung, S.U.
Cieslik, K.
Collins, P.
Contri, R.
Cosme, G.
Cossutti, F.
Costa, M.J.
Crennell, D.
Cuevas, J.
D'Hondt, J.
da Silva, T.
Da Silva, W.
Della Ricca, G.
De Angelis, A.
De Boer, W.
De Clercq, C.
De Lotto, B.
De Maria, N.
De Min, A.
de Paula, L.
Di Ciaccio, L.
Di Simone, A.
Doroba, K.
Drees, J.
Eigen, G.
Ekelof, T.
Ellert, M.
Elsing, M.
Espirito Santo, M.C.
Fanourakis, G.
Fassouliotis, D.
Feindt, M.
Fernandez, J.
Ferrer, A.
Ferro, F.
Flagmeyer, U.
Foeth, H.
Fokitis, E.
Fulda-Quenzer, F.
Fuster, J.
Gandelman, M.
Garcia, C.
Gavillet, Ph.
Gazis, E.
Gokieli, R.
Golob, B.
Gomez-Ceballos, G.
Goncalves, P.
Graziani, E.
Grosdidier, G.
Grzelak, K.
Guy, J.
Haag, C.
Hallgren, A.
Hamacher, K.
Hamilton, K.
Haug, S.
Hauler, F.
Hedberg, V.
Hennecke, M.
Herr, H.
Hoffman, J.
Holmgren, S.-O.
Holt, P.J.
Houlden, M.A.
Jackson, J.N.
Jarlskog, G.
Jarry, P.
Jeans, D.
Johansson, E.K.
Jonsson, P.
Joram, C.
Jungermann, L.
Kapusta, F.
Katsanevas, S.
Katsoufis, E.
Kernel, G.
Kersevan, B.P.
Kerzel, U.
King, B.T.
Kjaer, N.J.
Kluit, P.
Kokkinias, P.
Kourkoumelis, C.
Kouznetsov, O.
Krumstein, Z.
Kucharczyk, M.
Lamsa, J.
Leder, G.
Ledroit, F.
Leinonen, L.
Leitner, R.
Lemonne, J.
Lepeltier, V.
Lesiak, T.
Liebig, W.
Liko, D.
Lipniacka, A.
Lopes, J.H.
Lopez, J.M.
Loukas, D.
Lutz, P.
Lyons, L.
MacNaughton, J.
Malek, A.
Maltezos, S.
Mandl, F.
Marco, J.
Marco, R.
Marechal, B.
Margoni, M.
Marin, J.-C.
Mariotti, C.
Markou, A.
Martinez-Rivero, C.
Masik, J.
Mastroyiannopoulos, N.
Matorras, F.
Matteuzzi, C.
Mazzucato, F.
Mazzucato, M.
Mc Nulty, R.
Meroni, C.
Migliore, E.
Mitaroff, W.
Mjoernmark, U.
Moa, T.
Moch, M.
Moenig, K.
Monge, R.
Montenegro, J.
Moraes, D.
Moreno, S.
Morettini, P.
Mueller, U.
Muenich, K.
Mulders, M.
Mundim, L.
Murray, W.
Muryn, B.
Myatt, G.
Myklebust, T.
Nassiakou, M.
Navarria, F.
Nawrocki, K.
Nicolaidou, R.
Nikolenko, M.
Oblakowska-Mucha, A.
Obraztsov, V.
Olshevski, A.
Onofre, A.
Orava, R.
Osterberg, K.
Ouraou, A.
Oyanguren, A.
Paganoni, M.
Paiano, S.
Palacios, J.P.
Palka, H.
Papadopoulou, Th.D.
Pape, L.
Parkes, C.
Parodi, F.
Parzefall, U.
Passeri, A.
Passon, O.
Peralta, L.
Perepelitsa, V.
Perrotta, A.
Petrolini, A.
Piedra, J.
Pieri, L.
Pierre, F.
Pimenta, M.
Piotto, E.
Podobnik, T.
Poireau, V.
Pol, M.E.
Polok, G.
Pozdniakov, V.
Pukhaeva, N.
Pullia, A.
Raducci, S.
Rames, J.
Read, A.
Rebecchi, P.
Rehn, J.
Reid, D.
Reinhardt, R.
Renton, P.
Richard, F.
Ridky, J.
Rivero, M.
Rodriguez, D.
Romero, A.
Ronchese, P.
Roudeau, P.
Rovelli, T.
Ruhlmann-Kleider, V.
Ryabtchikov, D.
Sadovsky, A.
Salmi, L.
Salt, J.
Sander, C.
Savoy-Navarro, A.
Schwickerath, U.
Sekulin, R.
Siebel, M.
Sisakian, A.
Smadja, G.
Smirnova, O.
Sokolov, A.
Sopczak, A.
Sosnowski, R.
Spassov, T.
Stanitzki, M.
Stocchi, A.
Strauss, J.
Stugu, B.
Szczekowski, M.
Szeptycka, M.
Szumlak, T.
Tabarelli, T.
Tegenfeldt, F.
Timmermans, J.
Tkatchev, L.
Tobin, M.
Todorovova, S.
Tome, B.
Tonazzo, A.
Tortosa, P.
Travnicek, P.
Treille, D.
Tristram, G.
Trochimczuk, M.
Troncon, C.
Turluer, M.-L.
Tyapkin, I.A.
Tyapkin, P.
Tzamarias, S.
Uvarov, V.
Valenti, G.
Van Dam, P.
Van Eldik, J.
van Remortel, N.
Van Vulpen, I.
Vegni, G.
Veloso, F.
Venus, W.
Verdier, P.
Verzi, V.
Vilanova, D.
Vitale, L.
Vrba, V.
Wahlen, H.
Washbrook, A.J.
Weiser, C.
Wicke, D.
Wickens, J.
Wilkinson, G.
Winter, M.
Witek, M.
Yushchenko, O.
Zalewska, A.
Zalewski, P.
Zavrtanik, D.
Zhuravlov, V.
Zimin, N.I.
Zintchenko, A.
Zupan, M.
Περιοδικό:
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Εκδότης:
Elsevier
Τόμος:
653
Αριθμός / τεύχος:
2-4
Σελίδες:
151-160
Επίσημο URL (Εκδότης):
DOI:
10.1016/j.physletb.2007.08.005
Το ψηφιακό υλικό του τεκμηρίου δεν είναι διαθέσιμο.