The study of baryon excitation spectra provides insight into the inner structure of baryons. So far, most of the world-wide efforts have been directed towards N∗ and Δ spectroscopy. Nevertheless, the study of the double and triple strange baryon spectrum provides independent information to the N∗ and Δ spectra. The future antiproton experiment P¯ANDA will provide direct access to final states containing a Ξ¯ Ξ pair, for which production cross sections up to μb are expected in p¯p reactions. With a luminosity of L= 10 31 cm- 2 s- 1 in the first phase of the experiment, the expected cross sections correspond to a production rate of ∼106events/day. With a nearly 4 π detector acceptance, P¯ANDA will thus be a hyperon factory. In this study, reactions of the type p¯p → Ξ¯ +Ξ∗ - as well as p¯p → Ξ¯ ∗ +Ξ- with various decay modes are investigated. For the exclusive reconstruction of the signal events a full decay tree fit is used, resulting in reconstruction efficiencies between 3 and 5%. This allows high statistics data to be collected within a few weeks of data taking.

Study of excited Ξ baryons with the P¯ ANDA detector / Barucca G., Davi F.; Lancioni, G.; Mengucci, P.; Montalto, L.; P. P., Natali; Paone, N.; Rinaldi, D.; Scalise, L.; Krusche, B.; Steinacher, M.; Liu, Z.; Liu, C.; Liu, B.; Shen, X.; Sun, S.; Zhao, G.; Zhao, J.; Albrecht, M.; Alkakhi, W.; Bokelmann, S.; Coen, S.; Feldbauer, F.; Fink, M.; Frech, J.; Freudenreich, V.; Fritsch, M.; Grochowski, J.; Hagdorn, R.; F. H., Heinsius; Held, T.; Holtmann, T.; Keshk, I.; Koch, H.; Kopf, B.; Kummel, M.; Kussner, M.; Li, J.; Linzen, L.; Maldaner, S.; Oppotsch, J.; Pankonin, S.; Peliza, M.; Pfluger, S.; Reher, J.; Reicherz, G.; Schnier, C.; Steinke, M.; Triffterer, T.; Wenzel, C.; Wiedner, U.; Denizli, H.; Er, N.; Keskin, U.; Yerlikaya, S.; Yilmaz, A.; Beck, R.; Chauhan, V.; Hammann, C.; Hartmann, J.; Ketzer, B.; Mullers, J.; Salisbury, B.; Schmidt, C.; Thoma, U.; Urban, M.; Bianconi, A.; Bragadireanu, M.; Pantea, D.; Domagala, M.; Filo, G.; Lisowski, E.; Lisowski, F.; Michalek, M.; Poznanski, P.; Plazek, J.; Korcyl, K.; Lebiedowicz, P.; Pysz, K.; Schafer, W.; Szczurek, A.; Firlej, M.; Fiutowski, T.; Idzik, M.; Moron, J.; Swientek, K.; Terlecki, P.; Korcyl, G.; Lalik, R.; Malige, A.; Moskal, P.; Nowakowski, K.; Przygoda, W.; Rathod, N.; Salabura, P.; Smyrski, J.; Augustin, I.; Bohm, R.; Lehmann, I.; Schmitt, L.; Varentsov, V.; Al-Turany, M.; Belias, A.; Deppe, H.; Dzhygadlo, R.; Flemming, H.; Gerhardt, A.; Gotzen, K.; Heinz, A.; Jiang, P.; Karabowicz, R.; Koch, S.; Kurilla, U.; Lehmann, D.; Luhning, J.; Lynen, U.; Orth, H.; Peters, K.; Schepers, G.; C. 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G., Zaunick; Tomasi-Gustafsson, E.; Glazier, D.; Ireland, D.; Seitz, B.; Kappert, R.; Kavatsyuk, M.; Loehner, H.; Messchendorp, J.; Rodin, V.; Kalita, K.; Huang, G.; Liu, D.; Peng, H.; Qi, H.; Sun, Y.; Zhou, X.; Kunze, M.; Azizi, K.; A. T., Olgun; Tavukoglu, Z.; Derichs, A.; Dosdall, R.; Esmail, W.; Gillitzer, A.; Goldenbaum, F.; Grunwald, D.; Jokhovets, L.; Kannika, J.; Kulessa, P.; Orfanitski, S.; Perez-Andrade, G.; Prasuhn, D.; Prencipe, E.; Putz, J.; Ritman, J.; Rosenthal, E.; Schadmand, S.; Schmitz, R.; Scholl, A.; Sefzick, T.; Serdyuk, V.; Stockmanns, T.; Veretennikov, D.; Wintz, P.; Wustner, P.; Xu, H.; Zhou, Y.; Cao, X.; Hu, Q.; Liang, Y.; Rigato, V.; Isaksson, L.; Achenbach, P.; Corell, O.; Denig, A.; Distler, M.; Hoek, M.; Lauth, W.; H. H., Leithoff; Merkel, H.; Muller, U.; Petersen, J.; Pochodzalla, J.; Schlimme, S.; Sfienti, C.; Thiel, M.; Bleser, S.; Bolting, M.; Capozza, L.; Dbeyssi, A.; Ehret, A.; Klasen, R.; Kliemt, R.; Maas, F.; Motzko, C.; Noll, O.; D. R., Pineiro; Schupp, F.; Steinen, M.; Wolff, S.; Zimmermann, I.; Kazlou, D.; Korzhik, M.; Missevitch, O.; Balanutsa, P.; Chernetsky, V.; Demekhin, A.; Dolgolenko, A.; Fedorets, P.; Gerasimov, A.; Golubev, A.; Kantsyrev, A.; D. Y., Kirin; Kristi, N.; Ladygina, E.; Luschevskaya, E.; V. A., Matveev; Panjushkin, V.; A. V., Stavinskiy; Balashoff, A.; Boukharov, A.; Bukharova, M.; Malyshev, O.; Vishnevsky, E.; Bonaventura, D.; Brand, P.; Hetz, B.; Husken, N.; Kellers, J.; Khoukaz, A.; Klostermann, D.; Mannweiler, C.; Vestrick, S.; Bumrungkoh, D.; Herold, C.; Khosonthongkee, K.; Kobdaj, C.; Limphirat, A.; Manasatitpong, K.; Nasawad, T.; Pongampai, S.; Simantathammakul, T.; Srisawad, P.; Wongprachanukul, N.; Yan, Y.; Yu, C.; Zhang, X.; Zhu, W.; Antokhin, E.; A. Y., Barnyakov; Beloborodov, K.; V. E., Blinov; I. A., Kuyanov; Pivovarov, S.; Pyata, E.; Tikhonov, Y.; A. E., Blinov; Kononov, S.; E. A., Kravchenko; Lattery, M.; Boca, G.; Duda, D.; Finger, M.; M. , Finger, Jr, ; Kveton, A.; Pesek, M.; Peskova, M.; Prochazka, I.; Slunecka, M.; Volf, M.; Gallus, P.; Jary, V.; Korchak, O.; Marcisovsky, M.; Neue, G.; Novy, J.; Tomasek, L.; Tomasek, M.; Virius, M.; Vrba, V.; Abramov, V.; Bukreeva, S.; Chernichenko, S.; Derevschikov, A.; Ferapontov, V.; Goncharenko, Y.; Levin, A.; Maslova, E.; Melnik, Y.; Meschanin, A.; Minaev, N.; Mochalov, V.; Moiseev, V.; Morozov, D.; Nogach, L.; Poslavskiy, S.; Ryazantsev, A.; Ryzhikov, S.; Semenov, P.; Shein, I.; Uzunian, A.; Vasiliev, A.; Yakutin, A.; Belostotski, S.; Fedotov, G.; Izotov, A.; Manaenkov, S.; Miklukho, O.; Preston, M.; P. E., Tegner; Wolbing, D.; Cederwall, B.; Gandhi, K.; A. K., Rai; Godre, S.; Crede, V.; Dobbs, S.; Eugenio, P.; Calvo, D.; De Remigis, P.; Filippi, A.; Mazza, G.; Wheadon, R.; Iazzi, Felice; Lavagno, Andrea; M. P., Bussa; Spataro, S.; Akram, A.; Calen, H.; Ikegami Andersson, W.; Johansson, T.; Kupsc, A.; Marciniewski, P.; Papenbrock, M.; Regina, J.; Rieger, J.; Schonning, K.; Wolke, M.; Chlopik, A.; Kesik, G.; Melnychuk, D.; Tarasiuk, J.; Wronka, S.; Zwieglinski, B.; Amsler, C.; Buhler, P.; Marton, J.; Zimmermann, S.. - In: THE EUROPEAN PHYSICAL JOURNAL. A, HADRONS AND NUCLEI. - ISSN 1434-6001. - STAMPA. - 57:149(2021), pp. 1-19. [10.1140/epja/s10050-021-00444-5]

Study of excited Ξ baryons with the P¯ ANDA detector

Felice, Iazzi,;Andrea, Lavagno,;
2021

Abstract

The study of baryon excitation spectra provides insight into the inner structure of baryons. So far, most of the world-wide efforts have been directed towards N∗ and Δ spectroscopy. Nevertheless, the study of the double and triple strange baryon spectrum provides independent information to the N∗ and Δ spectra. The future antiproton experiment P¯ANDA will provide direct access to final states containing a Ξ¯ Ξ pair, for which production cross sections up to μb are expected in p¯p reactions. With a luminosity of L= 10 31 cm- 2 s- 1 in the first phase of the experiment, the expected cross sections correspond to a production rate of ∼106events/day. With a nearly 4 π detector acceptance, P¯ANDA will thus be a hyperon factory. In this study, reactions of the type p¯p → Ξ¯ +Ξ∗ - as well as p¯p → Ξ¯ ∗ +Ξ- with various decay modes are investigated. For the exclusive reconstruction of the signal events a full decay tree fit is used, resulting in reconstruction efficiencies between 3 and 5%. This allows high statistics data to be collected within a few weeks of data taking.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2949191