Journal article
Authors list: Airapetian, A; Akopov, N; Akopov, Z; Amarian, M; Ammosov, VV; Andrus, A; Aschenauer, EC; Augustyniak, W; Avakian, R; Avetissian, A; Avetissian, E; Bailey, P; Balin, D; Baturin, V; Beckmann, M; Belostotski, S; Bernreuther, S; Bianchi, N; Blok, HP; Böttcher, H; Borissov, A; Borysenko, A; Bouwhuis, M; Brack, J; Brüll, A; Bryzgalov, V; Capitani, GP; Chen, T; Chen, X; Chiang, HC; Ciullo, G; Contalbrigo, M; Dalpiaz, PF; Deconinck, W; De Leo, R; De Nardo, L; De Sanctis, E; Devitsin, E; Di Nezza, P; Düren, M; Ehrenfried, M; Elalaoui-Moulay, A; Elbakian, G; Ellinghaus, F; Elschenbroich, U; Ely, J; Fabbri, R; Fantoni, A; Fechtchenko, A; Felawka, L; Fox, B; Frullani, S; Gapienko, G; Gapienko, V; Garibaldi, Y; Garrow, K; Garutti, E; Gaskell, D; Gavrilov, G; Gharibyan, V; Graw, G; Grebeniouk, O; Greeniaus, LG; Gregor, IM; Hafidi, K; Hartig, M; Hasch, D; Heesbeen, D; Henoch, M; Hertenberger, R; Hesselink, WHA; Hillenbrand, A; Hoek, M; Holler, Y; Hommez, B; Iarygin, G; Ivanilov, A; Izotov, A; Jackson, HE; Jgoun, A; Kaiser, R; Kinney, E; Kisselev, A; Kopytin, M; Korotkov, V; Kozlov, V; Krauss, B; Krivokhijine, VG; Lagamba, L; Lapikás, L; Laziev, A; Lenisa, P; Liebing, P; Linden-Levy, LA; Lipka, K; Lorenzon, W; Lu, H; Lu, J; Lu, S; Lu, X; Ma, BQ; Maiheu, B; Makins, NCR; Mao, Y; Marianski, B; Marukyan, H; Masoli, F; Mexner, V; Meyners, N; Mikloukho, O; Miller, CA; Miyachi, Y; Muccifora, V; Nagaitsev, A; Nappi, E; Naryshkin, Y; Nass, A; Negodaev, M; Nowak, WD; Oganessyan, K; Ohsuga, H; Pickert, N; Potashov, S; Potterveld, DH; Raithel, M; Reggiani, D; Reimer, PE; Reischl, A; Reolon, AR; Riedl, C; Rith, K; Rosner, G; Rostomyan, A; Rubacek, L; Rubin, J; Ryckbosch, D; Salomatin, Y; Sanjiev, I; Savin, I; Schäfer, A; Schill, C; Schnell, G; Schüler, KP; Seele, J; Seidl, R; Seitz, B; Shanidze, R; Shearer, C; Shibata, TA; Shutov, V; Simani, MC; Sinram, K; Stancari, M; Statera, M; Steffens, E; Steijger, JJM; Stenzel, H; Stewart, J; Stinzing, F; Stösslein, U; Tait, P; Tanaka, H; Taroian, S; Tchuiko, B; Terklov, A; Tkabladze, A; Trzcinski, A; Tytgat, M; Vandenbroucke, A; van der Nat, P; van der Steenhoven, G; Vetterli, MC; Vikhrov, V; Vincter, MG; Vogel, C; Vogt, M; Volmer, J; Weiskopf, C; Wendland, J; Wilbert, J; Smit, GY; Ye, Y; Ye, Z; Yen, Z; Yu, W; Zihlmann, B; Zohrabian, H; Zupranski, P
Publication year: 2004
Pages: 213-222
Journal: Physics Letters B
Volume number: 585
Issue number: 3-4
ISSN: 0370-2693
eISSN: 1873-2445
DOI Link: https://doi.org/10.1016/j.physletb.2004.01.079
Publisher: Elsevier
Abstract:
Evidence for a narrow baryon state is found in quasi-real photoproduction on a deuterium target through the decay channel pK(S)(0) --> ppi(+)pi(-). A peak is observed in the pK(S)(0) invariant mass spectrum at 1528 +/- 2.6(stat) +/- 2.1(syst) MeV. Depending on the background model, the naive statistical significance of the peak is 4-6 standard deviations and its width may be somewhat larger than the experimental resolution of sigma = 4.3-6.2 MeV. This state may be interpreted as the predicted S = +1 exotic Theta(+)(uudd (s) over bar) pentaquark baryon. No signal for an hypothetical Theta(++) baryon was observed in the pK(+) invariant mass distribution. The absence of such a signal indicates that an isotensor Theta is excluded and an isovector Theta is unlikely. (C) 2004 Elsevier B.V. All rights reserved.
Citation Styles
Harvard Citation style: Airapetian, A., Akopov, N., Akopov, Z., Amarian, M., Ammosov, V., Andrus, A., et al. (2004) Evidence for a narrow |S|=1 baryon state at a mass of 1528 MeV in quasi-real photoproduction, Physics Letters B, 585(3-4), pp. 213-222. https://doi.org/10.1016/j.physletb.2004.01.079
APA Citation style: Airapetian, A., Akopov, N., Akopov, Z., Amarian, M., Ammosov, V., Andrus, A., Aschenauer, E., Augustyniak, W., Avakian, R., Avetissian, A., Avetissian, E., Bailey, P., Balin, D., Baturin, V., Beckmann, M., Belostotski, S., Bernreuther, S., Bianchi, N., Blok, H., ...Zupranski, P. (2004). Evidence for a narrow |S|=1 baryon state at a mass of 1528 MeV in quasi-real photoproduction. Physics Letters B. 585(3-4), 213-222. https://doi.org/10.1016/j.physletb.2004.01.079
Keywords
BARYON PRODUCTION; BARYONS; DECUPLET; DETECTOR; EXOTIC HADRONS; glueball and nonstandard multi-quark/gluon states; PENTAQUARK; photon and charged-lepton interactions with hadrons; POSITIVE-STRANGENESS; SKYRME MODEL
