Observation of a J**PC = 1-+ exotic resonance in diffractive dissociation of 190-GeV/c pi- into pi- pi- pi+
- Alekseev, M.
- Alexakhin, V. Yu
- Alexandrov, Yu
- Alexeev, G. D
- Amoroso, A.
- Austregisilio, A.
- Badelek, B.
- Balestra, F.
- Ball, J.
- Barth, J.
- Baum, Günter
- Bedfer, Y.
- Bernhard, J.
- Bertini, R.
- Bettinelli, M.
- Birsa, R.
- Bisplinghoff, J.
- Bordalo, P.
- Bradamante, F.
- Bravar, A.,
- Bressan, A.,
- Brona, G.,
- Burtin, E.,
- Bussa, M. P,
- Chapiro, A.,
- Chiosso, M.,
- Chung, S. U,
- Cicuttin, A.,
- Colantoni, M.,
- Crespo, M. L,
- Dalla Torre, S.,
- Dafni, T.,
- Das, S.,
- Dasgupta, S. S,
- Denisov, O. Yu,
- Dhara, L.,
- Diaz, V.,
- Dinkelbach, A. M,
- Donskov, S. V,
- Doshita, N.,
- Duic, V.,
- Dunnweber, W.,
- Efremov, A.,
- Eversheim, P. D,
- Eyrich, W.,
- Faessler, M.,
- Ferrero, A.,
- Finger, M.,
- Finger, M.,
- Fischer, H.,
- Franco, C.,
- Friedrich, J. M,
- Garfagnini, R.,
- Gautheron, F.,
- Gavrichtchouk, O. P,
- Gazda, R.,
- Gerassimov, S.,
- Geyer, R.,
- Giorgi, M.,
- Gobbo, B.,
- Goertz, S.,
- Grabmuller, S.,
- Grajek, O. A,
- Grasso, A.,
- Grube, B.,
- Gushterski, R.,
- Guskov, A.,
- Haas, F.,
- von Harrach, D.,
- Hasegawa, T.,
- Heckmann, J.,
- Heinsius, F. H,
- Hermann, R.,
- Herrmann, F.,
- Hess, C.,
- Hinterberger, F.,
- Horikawa, N.,
- Hoppner, Ch,
- d'Hose, N.,
- Ilgner, C.,
- Ishimoto, S.,
- Ivanov, O.,
- Ivanshin, Yu,
- Iwata, T.,
- Jahn, R.,
- Jasinski, P.,
- Jegou, G.,
- Joosten, R.,
- Kabuss, E.,
- Kang, D.,
- Ketzer, B.,
- Khaustov, G. V,
- Khokhlov, Yu. A,
- Kisselev, Yu,
- Klein, F.,
- Klimaszewski, K.,
- Koblitz, S.,
- Koivuniemi, J. H,
- Kolosov, V. N,
- Komissarov, E. V,
- Kondo, K.,
- Konigsmann, Kay,
- Konopka, R.,
- Konorov, I.,
- Konstantinov, V. F,
- Korzenev, A.,
- Kotzinian, A. M,
- Kouznetsov, O.,
- Kowalik, K.,
- Kramer, M.,
- Kral, A.,
- Kroumchtein, Z. V,
- Kuhn, R.,
- Kunne, F.,
- Kurek, K.,
- Lauser, L.,
- Le Goff, J. M,
- Lednev, A. A,
- Lehmann, A.,
- Levorato, S.,
- Lichtenstadt, J.,
- Liska, T.,
- Maggiora, A.,
- Maggiora, M.,
- Magnon, A.,
- Mallot, G. K,
- Mann, A.,
- Marchand, C.,
- Marroncle, J.,
- Martin, A.,
- Marzec, J.,
- Massmann, F.,
- Matsuda, T.,
- Meyer, W.,
- Michigami, T.,
- Mikhailov, Yu. V,
- Moinester, M. A,
- Mutter, A.,
- Nagaytsev, A.,
- Nagel, T.,
- Nassalski, J.,
- Negrini, S.,
- Nerling, F.,
- Neubert, S.,
- Neyret, D.,
- Nikolaenko, V. I,
- Olshevsky, A. G,
- Ostrick, M.,
- Padee, A.,
- Panknin, R.,
- Panzieri, D.,
- Parsamyan, B.,
- Paul, S.,
- Pawlukiewicz-Kaminska, B.,
- Perevalova, E.,
- Pesaro, G.,
- Peshekhonov, D. V,
- Piragino, G.,
- Platchkov, S.,
- Pochodzalla, J.,
- Polak, J.,
- Polyakov, V. A,
- Pontecorvo, G.,
- Pretz, J.,
- Quintans, C.,
- Rajotte, J. -F,
- Ramos, S.,
- Rapatsky, V.,
- Reicherz, G.,
- Reggiani, D.,
- Richter, A.,
- Robinet, F.,
- Rocco, E.,
- Rondio, E.,
- Ryabchikov, D. I,
- Samoylenko, V. D,
- Sandacz, A.,
- Santos, H.,
- Sapozhnikov, M. G,
- Sarkar, S.,
- Savin, Igor A,
- Sbrizza, G.,
- Schiavon, P.,
- Schill, C.,
- Schmitt, L.,
- Schopferer, S.,
- Schroder, W.,
- Shevchenko, O. Yu,
- Siebert, H. -W,
- Silva, L.,
- Sinha, L.,
- Sissakian, A. N,
- Slunecka, M.,
- Smirnov, G. I,
- Sosio, S.,
- Sozzi, F.,
- Srnka, A.,
- Stolarski, M.,
- Sulc, M.,
- Sulej, R.,
- Takekawa, S.,
- Tessaro, S.,
- Tessarotto, F.,
- Teufel, A.,
- Tkatchev, L. G,
- Uman, I.,
- Venugopal, G.,
- Virius, M.,
- Vlassov, N. V,
- Vossen, A.,
- Weitzel, Q.,
- Windmolders, R.,
- Wislicki, W.,
- Wollny, H.,
- Zaremba, K.,
- Zavertyaev, M.,
- Zemlyanichkina, E.,
- Ziembicki, M.,
- Zhao, J.,
- Zhuravlev, N.,
- Zvyagin, A.,
- Zvyagin, A.,
Publication date
January 2010
DOI Publisher
American Physical Society (APS)Abstract
Alekseev M, Alexakhin VY, Alexandrov Y, et al. Observation of a J**PC = 1-+ exotic resonance in diffractive dissociation of 190-GeV/c pi- into pi- pi- pi+. Phys.Rev.Lett. 2010;104(24): 241803.The COMPASS experiment at the CERN SPS has studied the diffractive dissociation of negative pions into the pi- pi- pi+ final state using a 190 GeV/c pion beam hitting a lead target. A partial wave analysis has been performed on a sample of 420000 events taken at values of the squared 4-momentum transfer t' between 0.1 and 1 GeV^2/c^2. The well-known resonances a1(1260), a2(1320), and pi2(1670) are clearly observed. In addition, the data show a significant natural parity exchange production of a resonance with spin-exotic quantum numbers J^PC = 1-+ at 1...
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