| Article | |
| Report number | hep-ex/9806017 |
| Title | Measurements of the reaction $pp \to \phi \eta$ of antiproton annihilation at rest at three hydrogen target densities |
| Author(s) |
Alberico, V (Bologna U. ; INFN, Bologna) ; Bertin, A (Bologna U. ; INFN, Bologna) ; Bruschi, M (Bologna U. ; INFN, Bologna) ; Capponi, M (Bologna U. ; INFN, Bologna) ; De Castro, S (Bologna U. ; INFN, Bologna) ; Doná, R (Bologna U. ; INFN, Bologna) ; Ferretti, A (Bologna U. ; INFN, Bologna) ; Galli, D (Bologna U. ; INFN, Bologna) ; Giacobbe, B (Bologna U. ; INFN, Bologna) ; Marconi, U (Bologna U. ; INFN, Bologna) ; Piccinini, M (Bologna U. ; INFN, Bologna) ; Poli, M (Bologna U. ; INFN, Bologna) ; Semprini Cesari, N (Bologna U. ; INFN, Bologna) ; Spighi, R (Bologna U. ; INFN, Bologna) ; Vagnoni, S (Bologna U. ; INFN, Bologna) ; Vecchi, S (Bologna U. ; INFN, Bologna) ; Vigotti, F (Bologna U. ; INFN, Bologna) ; Villa, M (Bologna U. ; INFN, Bologna) ; Vitale, A (Bologna U. ; INFN, Bologna) ; Zoccoli, A (Bologna U. ; INFN, Bologna) ; Bianconi, R (Brescia U. ; INFN, Pavia) ; Corradini, M (Brescia U. ; INFN, Pavia) ; Lodi Rizzini, E (Brescia U. ; INFN, Pavia) ; Venturelli, L (Brescia U. ; INFN, Pavia) ; Zenoni, A (Brescia U. ; INFN, Pavia) ; Cicalò, C (Cagliari U. ; INFN, Cagliari) ; Masoni, A (Cagliari U. ; INFN, Cagliari) ; Puddu, G (Cagliari U. ; INFN, Cagliari) ; Serci, S (Cagliari U. ; INFN, Cagliari) ; Temnikov, P (Cagliari U. ; INFN, Cagliari) ; Usai, G (Cagliari U. ; INFN, Cagliari) ; Gortchakov, O (Dubna, JINR) ; Nomokonov, V (Dubna, JINR) ; Prakhov, S (Dubna, JINR) ; Rozhdestvensky, A (Dubna, JINR) ; Sapozhnikov, M (Dubna, JINR) ; Tretyak, V (Dubna, JINR) ; Gianotti, P (Frascati) ; Guaraldo, C (Frascati) ; Lanaro, A (Frascati) ; Lucherini, V (Frascati) ; Nichitiu, F (Frascati) ; Petrascu, C (Frascati) ; Ableev, V (INFN, Legnaro) ; Cavion, C (INFN, Legnaro) ; Gastaldi, U (INFN, Legnaro) ; Lombardi, M (INFN, Legnaro) ; Maron, G (INFN, Legnaro) ; Vannucci, L (INFN, Legnaro) ; Vedovato, G (INFN, Legnaro) ; Bendiscioli, G (INFN, Pavia ; Pavia U.) ; Filippini, V (INFN, Pavia ; Pavia U.) ; Fontana, A (INFN, Pavia ; Pavia U.) ; Montagna, P (INFN, Pavia ; Pavia U.) ; Panzarasa, A (INFN, Pavia ; Pavia U.) ; Rotondi, A (INFN, Pavia ; Pavia U.) ; Salvini, P (INFN, Pavia ; Pavia U.) ; Scoglio, C (INFN, Pavia ; Pavia U.) ; Mirfakhraee, N (Shahid Beheshti U.) ; Balestra, F (INFN, Turin ; Turin U.) ; Bussa, M.P (INFN, Turin ; Turin U.) ; Busso, L (INFN, Turin ; Turin U.) ; Cerello, P (INFN, Turin ; Turin U.) ; Denisov, O (INFN, Turin ; Turin U.) ; Ferrero, L (INFN, Turin ; Turin U.) ; Garfagnini, R (INFN, Turin ; Turin U.) ; Grasso, A (INFN, Turin ; Turin U.) ; Maggiora, A (INFN, Turin ; Turin U.) ; Panzieri, D (INFN, Turin ; Turin U.) ; Tosello, F (INFN, Turin ; Turin U.) ; Valacca, L (INFN, Turin ; Turin U.) ; Zosi, G (INFN, Turin ; Turin U.) ; Botta, E (INFN, Turin ; Turin U.) ; Bressani, T (INFN, Turin ; Turin U.) ; Calvo, D (INFN, Turin ; Turin U.) ; Costa, S (INFN, Turin ; Turin U.) ; D'Isep, F (INFN, Turin ; Turin U.) ; Feliciello, A (INFN, Turin ; Turin U.) ; Filippi, A (INFN, Turin ; Turin U.) ; Marcello, S (INFN, Turin ; Turin U.) ; Agnello, M (INFN, Turin) ; Iazzi, F (INFN, Turin) ; Minetti, B (INFN, Turin) ; Pauli, G (Trieste U. ; INFN, Trieste) ; Tessaro, S (Trieste U. ; INFN, Trieste) ; Santi, L (Udine U. ; INFN, Udine) |
| Publication | 1998 |
| Imprint | 1998-06 |
| Number of pages | 10 |
| Note | Abstract lists these two authors: V. Alberico, A. Bertin Abstract lists these two authors: V. Alberico, A. Bertin 10 pages, 3 Postscript figures. Accepted by Physics Letters B |
| In: | Phys. Lett. B 432 (1998) 427-35 |
| DOI | 10.1016/S0370-2693(98)00633-9 |
| Subject category | Particle Physics - Experiment |
| Accelerator/Facility, Experiment | CERN LEAR ; PS201 |
| Abstract | The proton-antiproton annihilation at rest into the $\phi\eta$ final state was measured for three different target densities: liquid hydrogen, gaseous hydrogen at NTP and at a low pressure of 5 mbar. The yield of this reaction in the liquid hydrogen target is smaller than in the low-pressure gas target. The branching ratios of the $\phi\eta$ channel were calculated on the basis of simultaneous analysis of the three data samples. The branching ratio for annihilation into $\phi\eta$ from the $^3S_1$ protonium state turns out to be about ten times smaller as compared to the one from the $^1P_1$ state. |
| Copyright/License | Copyright @ unknown. Published by Elsevier B.V. |
Corresponding record in: Inspire
Record created 1998-11-17, last modified 2024-05-29
