학술논문
Antiproton annihilation at rest in liquid deuterium into π− π0 π0 pS
Document Type
Original Paper
Author
Amsler, C.; Augustin, I.; Baker, C. A.; Barnett, B. M.; Batty, C. J.; Beuchert, K.; Birien, P.; Bistirlich, J.; Blüm, P.; Bossingham, R.; Bossy, H.; Braune, K.; Brose, J.; Bugg, D. V.; Burchell, M.; Case, T.; Cooper, A.; Crowe, K. M.; Dietz, H. P.; v. Dombrowski, S.; Doser, M.; Dünnweber, W.; Engelhardt, D.; Englert, M.; Faessler, M. A.; Felix, C.; Folger, G.; Hackmann, R.; Haddock, R. P.; Heinsius, F. H.; Hessey, N. P.; Hidas, P.; Illinger, P.; Jamnik, D.; Jávorfi, Z.; Kalinowsky, H.; Kämmle, B.; Kiel, T.; Kisiel, J.; Klempt, E.; Kobel, M.; Koch, H.; Kolo, C.; Königsmann, K.; Kunze, M.; Landua, R.; Lüdemann, J.; Matthaey, H.; Merkel, M.; Merlo, J. P.; Meyer, C. A.; Meyer-Berkhout, U.; Montanet, L.; Noble, A.; Peters, K.; Pinter, G.; Ravndal, S.; Sanjari, A. H.; Schäfer, E.; Schmid, B.; Schmidt, P.; Spanier, S.; Straßburger, C.; Strohbusch, U.; Suffert, M.; Urner, D.; Völcker, C.; Walter, F.; Walther, D.; Wiedner, U.; Winter, N.; Zoll, J.; Zupančič, Č.; Crystal Barrel Collaboration
Source
Il Nuovo Cimento A (1965-1970). November 1994 107(11):2339-2344
Subject
Language
English
ISSN
1826-9869
Abstract
Summary:With the Crystal Barrel detector, the final state π− π0 π0 pS at rest in liquid deuterium was measured for the first time. A preliminary partial-wave analysis was performed, which required two interesting features: besides the ρ(770), a second pole was needed in the ππP-wave and a narrow resonance in the ππS-wave, slightly above 1500 MeV/c2 . With the same parametrization a high-statistics π+ π− π0 data set could also be well described.