|
|||||
|
|
Meson production inp+U,O+U and S+U interactions at 200 GeV/nucleon |
|
| Authors: | M C Abreu C Baglin A Baldisseri A Baldit C Barrière M Bedjidian P Bordalo A Bussière P Busson R Cases J Castor T Chambon C Charlot B Chaurand D Contardo E Descroix A Devaux O Drapier J Fargeix X Felgeyrolles R Ferreira P Force L Fredj J M Gago C Gerschel P Gorodetzky B Grosdidier J Y Grossiord A Guichard J P Guillaud R Haroutunian D Jouan L Kluberg R Kossakowski G Landaud P Liaud C Lourenço S Papillon L Peralta J R Pizzi C Racca S Ramos A Romana R A Salmeron P Sonderegger F Staley S Silva X Tarrago J Varela F Vazeille |
| Institution: | 1. LIP, Av. Elias Garcia, 14-1, P-1000, Lisbon, Portugal 3. Laboratoire d'Annecy-le-Vieux de Physique des Particules, N2P3-CNRS, BP 110, F-74941, Annecy-le-Vieux Cedex, France 4. Laboratoire de Physique Corpusculaire de Clermont-Ferrand, IN2P3-CNRS et Université Blaise Pascal, F-63177, Aubière Cedex, France 5. Institut de Physique Nucléaire de Lyon, IN2P3-CNRS et Université Claude Bernard, 43 bvd. du 11 Novembre 1918, F-69622, Villeurbanne, France 7. Laboratoire de Physique Nucléaire des Hautes Energies, Ecole Polytechnique, IN2P3-CNRS, F-91128, Palaiseau Cedex, France 8. IFIC Centro Mixto Universidad de Valencia-CSIC, E-36100, Burjasot, Valencia, Spain 9. Institut de Physique Nucléaire, IN2P3-CNRS et Université de Paris-Sud, F-91406, Orsay Cedex, France 10. Centre de Recherches Nucléaires, IN2P3-CNRS et Université Louis Pasteur, BP 20, F-67037, Strasbourg Cedex, France 11. CERN, CH-1211, Geneva 23, Switzerland |
| Abstract: | Meson production in proton, oxygen and sulphur interactions with uranium targets at 200 GeV/nucleon is studied. We measure the inclusive meson cross-section d  /dP
T
2
and its evolution fromp+U to S+U. The cross-section fitted with an exponential gives an inverse slopeP
T0 of the order of 210 MeV/c. As a function of the neutral transverse energy,P
T0 values show a slight rise followed by a plateau. The normalized difference (+––)/– between positive and negative meson cross-sections is found to increase withE
T
.also at ISEL |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ | |