Test of chiral perturbation theory with DIRAC at CERN

The DIRAC experiment at CERN aims to form pi /sup +/ pi /sup -/ atomic states and to measure their lifetime with 10% accuracy. This will give a precision of 5% in the determination of pi pi S-wave scattering lengths, of the same level of Chiral Perturbation Theory calculations. In this way a crucial...

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Detalles Bibliográficos
Autores principales: Gianotti, P, Adeva, B, Afanasiev, L G, Benayoun, M, Brekhovskikh, V, Caragheorgheopol, G, Cechák, T, Chiba, M, Constantinescu, S, Doudarev, A, Dreossi, D, Drijard, Daniel, Ferro-Luzzi, M, Gallas-Torreira, M V, Gerndt, J, Giacomich, R, Gómez, F, Gorin, A, Gortchakov, O E, Guaraldo, C, Hansroul, M, Hosek, R, Iliescu, M A, Kalinina, N A, Karpukhin, V V, Kluson, J, Kobayashi, M, Kokkas, P, Kormarov, V, Koulikov, A, Kouptsov, A, Krouglov, V, Kuroda, K I, Lanaro, A, Lapshin, V G, Lednicky, R, Leruste, P, Levisandri, P, López-Aguera, A, Lucherini, V, Mäki, T, Manuilov, I V, Montanet, Lucien, Narjoux, J L, Nemenov, L L, Nikitin, M, Núñez-Pardo de Vera, M T, Okada, K, Olchevskii, V, Pazos, A, Pentia, M, Penzo, Aldo L, Perreau, J M, Petrascu, C, Pló, M, Ponta, T, Pop, D, Riazantsev, A, Rodríguez, J M, Rodríguez-Fernández, A M, Rykalin, V I, Santamarina-Rios, C, Schacher, J, Sidorov, A, Smolik, J, Takeutchi, F, Tarasov, A, Tauscher, Ludwig, Trousov, S, Vázquez, P, Vlachos, S, Yazkov, V, Yoshimura, Y, Zrelov, V P
Lenguaje:eng
Publicado: 2000
Materias:
Particle Physics - Experiment
Acceso en línea:http://cds.cern.ch/record/494675
Descripción
Sumario:The DIRAC experiment at CERN aims to form pi /sup +/ pi /sup -/ atomic states and to measure their lifetime with 10% accuracy. This will give a precision of 5% in the determination of pi pi S-wave scattering lengths, of the same level of Chiral Perturbation Theory calculations. In this way a crucial test on the theory validity would be performed. (13 refs).

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