Search for an Exotic $S=-2, Q=-2$ baryon resonance in proton-proton interactions at $\sqrt{s_{NN}}$ = 17.3 GeV
- Aduszkiewicz, A.
- Andronov, E.V.
- Antićić, T.
- Babkin, V.
- Baszczyk, M.
- Bhosale, S.
- Blondel, A.
- Bogomilov, M.
- Brandin, A.
- Bravar, A.
- Bryliński, W.
- Brzychczyk, J.
- Buryakov, M.
- Busygina, O.
- Bzdak, A.
- Cherif, H.
- Ćirković, M.
- Cybowska, J.
- Czopowicz, T.
- Damyanova, A.
- Davis, N.
- Deliyergiyev, M.
- Deveaux, M.
- Dmitriev, A.
- Dominik, W.
- Dorosz, P.
- Dumarchez, J.
- Engel, R.
- Feofilov, G.A.
- Fields, L.
- Fodor, Z.
- Garibov, A.
- Gaździcki, M.
- Golosov, O.
- Golovatyuk, V.
- Golubeva, M.
- Grebieszkow, K.
- Guber, F.
- Haesler, A.
- Igolkin, S.N.
- Ilieva, S.
- Ivashkin, A.
- Johnson, S.R.
- Kadija, K.
- Kargin, N.
- Kashirin, E.
- Kiełbowicz, M.
- Kireyeu, V.A.
- Klochkov, V.
- Kolesnikov, V.I.
- Kolev, D.
- Korzenev, A.
- Kovalenko, V.N.
- Kowalski, S.
- Koziel, M.
- Krasnoperov, A.
- Kucewicz, W.
- Kuich, M.
- Kurepin, A.
- Larsen, D.
- László, A.
- Lazareva, T.V.
- Lewicki, M.
- Łojek, K.
- Łysakowski, B.
- Lyubushkin, V.V.
- Maćkowiak-Pawłowska, M.
- Majka, Z.
- Maksiak, B.
- Malakhov, A.I.
- Marcinek, A.
- Marino, A.D.
- Marton, K.
- Mathes, H.-J.
- Matulewicz, T.
- Matveev, V.
- Melkumov, G.L.
- Merzlaya, A.O.
- Messerly, B.
- Morozov, S.
- Mrówczyński, S.
- Nagai, Y.
- Naskręt, M.
- Ozvenchuk, V.
- Paolone, V.
- Petukhov, O.
- Płaneta, R.
- Podlaski, P.
- Popov, B.A.
- Porfy, B.
- Posiadała-Zezula, M.
- Prokhorova, D.S.
- Pszczel, D.
- Puławski, S.
- Puzović, J.
- Ravonel, M.
- Renfordt, R.
- Röhrich, D.
- Rondio, E.
- Roth, M.
- Rumberger, B.T.
- Rumyantsev, M.
- Rustamov, A.
- Rybczynski, M.
- Rybicki, A.
- Sadovsky, A.
- Schmidt, K.
- Selyuzhenkov, I.
- Seryakov, A.Yu.
- Seyboth, P.
- Słodkowski, M.
- Staszel, P.
- Stefanek, G.
- Stepaniak, J.
- Strikhanov, M.
- Ströbele, H.
- Šuša, T.
- Taranenko, A.
- Tefelska, A.
- Tefelski, D.
- Tereshchenko, V.
- Toia, A.
- Tsenov, R.
- Turko, L.
- Ulrich, R.
- Unger, M.
- Valiev, F.F.
- Veberič, D.
- Vechernin, V.V.
- Wickremasinghe, A.
- Włodarczyk, Z.
- Wyszyński, O.
- Zimmerman, E.D.
- Zwaska, R.
DOIAbstract
International audiencePentaquark states have been extensively investigated theoretically in the context of the constituent quark model. In this paper results of an experimental search for pentaquarks in the Ξ- π-, Ξ- π+, Ξ¯+ π- and Ξ¯+ π+ invariant mass spectra in proton-proton interactions at s=17.3 GeV are presented. Previous possible evidence from the NA49 collaboration of the existence of a narrow Ξ- π- baryon resonance in p+p interactions is not confirmed with almost 10 times greater event statistics. The search was performed using the NA61/SHINE detector which reuses the main components of the NA49 apparatus. No signal was observed with either the selection cuts of NA49 or newly optimized cuts
Add to ORKG