| Article | |
| Title | Antiproton-proton annihilation at rest into $K^{+}K^{-}\pi^{0}$ |
| Author(s) |
Abele, A ; Adomeit, J ; Amsler, Claude ; Baker, C A ; Barnett, B M ; Batty, C J ; Benayoun, M ; Berdoz, A R ; Bischoff, S ; Blüm, H P ; Braune, K ; Bugg, D V ; Case, T ; Cramer, O ; Crowe, K M ; Degener, T F ; Doser, Michael ; Dünnweber, W ; Engelhardt, D ; Faessler, M A ; Giarritta, P ; Haddock, R P ; Heinsius, F H ; Heinzelmann, M ; Herbstrith, A ; Herz, M ; Hessey, N P ; Hidas, P ; Hodd, C ; Holtzhaussen, C ; Jamnik, D ; Kalinowsky, H ; Kammel, P ; Kisiel, J ; Klempt, E ; Koch, H ; Kunze, M ; Kurilla, U ; Lakata, M T ; Landua, Rolf ; Matthäy, H ; McCrady, R G ; Meier, J ; Meyer, C A ; Ouared, R ; Peters, K ; Pick, B ; Ratajczak, M ; Regenfus, C ; Röthel, W ; Seibert, R ; Spanier, S M ; Stöck, H ; Strassburger, C ; Strohbusch, U ; Suffert, Martin ; Suh, J S ; Thoma, U ; Tischhäuser, M ; Uman, I ; Völcker, C ; Wallis-Plachner, S ; Walther, D ; Wiedner, U ; Wittmack, K ; Zou Bing Song |
| Affiliation | (CERN) |
| Publication | 1999 |
| Imprint | 1999 |
| In: | Phys. Lett. B 468 (1999) 178-188 |
| DOI | 10.1016/S0370-2693(99)01191-0 |
| Subject category | Particle Physics - Experiment |
| Accelerator/Facility, Experiment | CERN LEAR ; PS197 |
| Abstract | The annihilation channel pp to K/sup +/K/sup -/ pi /sup 0/ in liquid hydrogen at rest has been studied with the Crystal Barrel detector at LEAR. The measured branching ratio is: BR(pp to K/sup +/K/sup -/ pi /sup 0/)=(2.37+or-0.15)*10/sup -3/. A partial wave analysis shows that this reaction is dominated by the pi (KK)/sub S/, KK*(892) and pi phi (1020) intermediate states. Weak signals are observed for pi a /sub 2/(1320), pi f/sub 2/(1270), pi f/sub 2/'(1525) and K(K pi )/sub S/. A satisfactory description of the Dalitz plot requires the introduction of pi (KK)/sub P/ intermediate states with at least one pole. (25 refs). |
Corresponding record in: Inspire
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