Detection of π+π− atoms with the DIRAC spectrometer at CERN

التفاصيل البيبلوغرافية
العنوان: Detection of π+π− atoms with the DIRAC spectrometer at CERN
المؤلفون: G.F. Rappazzo, P. Zrelov, A. Dudarev, D. Goldin, V. Kruglov, K. I. Kuroda, J. Kluson, N. Kalinina, Makoto Kobayashi, C. Santamarina, M. Plo, M. Zhabitsky, C. Guaraldo, M. Hansroul, Alessandra Romero, T. Ponta, M. Nikitin, S.V. Trusov, Panagiotis Kokkas, J. Saborido, M. Gallas, A. Tarasov, V. Utkin, M. Benayoun, C. Schuetz, Nikolaos Manthos, A. Benelli, V. Olchevskii, D. Drijard, L. Kruglova, Bernardo Adeva, V. Karpukhin, J. Gerndt, V. Lucherini, T. Nunez Pardo, O. Gorchakov, Massimiliano Ferro-Luzzi, Tomáš Čechák, P. Vazquez, M. Iliescu, Ioannis Evangelou, A. Penzo, F. Gomez, A. Lamberto, A. Pazos, L. Afanasyev, A. I. Kulikov, J. Smolik, S. Vlachos, K. Okada, O. Vazquez Doce, M. Pentia, A. Rodriguez Fernandez, R. Lednicky, V. Lapshin, R. Hosek, L. Nemenov, V.I. Rykalin, M.J. Tobar, P. Levi Sandri, R. Giacomich, J. Schacher, A. Lopez Agüera, T. Maki, D. Pop, J. M. Perreau, F. Takeutchi, C. Detraz, S. Costantini, I. Manuilov, Y. Yoshimura, V.I. Komarov, A. Sidorov, V. Yazkov, A. Lanaro, Paola Gianotti, I. Kurochkin, P. Leruste, Masami Chiba, D. Dreossi, C. Petrascu, S. Constantinescu, L. Montanet, A. Gorin, V. Brekhovskikh, L. Tauscher, Z. Berka, G. Caragheorgheopol, J.-L. Narjoux, A.V. Kuptsov, A. Ryazantsev
المصدر: Journal of Physics G: Nuclear and Particle Physics. 30:1929-1946
بيانات النشر: IOP Publishing, 2004.
سنة النشر: 2004
مصطلحات موضوعية: Condensed Matter::Quantum Gases, Physics, Nuclear and High Energy Physics, Large Hadron Collider, Proton, Spectrometer, High Energy Physics::Lattice, Dirac (software), Other Fields of Physics, Measure (mathematics), High Energy Physics - Experiment, Momentum, Ionization, Atom, High Energy Physics::Experiment, Physics::Atomic Physics, Atomic physics, Particle Physics - Experiment
الوصف: The goal of the DIRAC experiment at CERN is to measure with high precision the lifetime of the $\pi^+\pi^-$ atom ($A_{2\pi}$), which is of order $3\times10^{-15}$ s, and thus to determine the s-wave $\pi\pi$-scattering lengths difference $|a_{0}-a_{2}|$. $A_{2\pi}$ atoms are detected through the characteristic features of $\pi^+\pi^-$ pairs from the atom break-up (ionization) in the target. We report on a first high statistics atomic data sample obtained from p Ni interactions at 24 GeV/$c$ proton momentum and present the methods to separate the signal from the background.
Comment: 19 pages, 12 figures, 1 table
تدمد: 1361-6471
0954-3899
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2f1aec24d6952675038c2f20d111c963Test
https://doi.org/10.1088/0954-3899/30/12/012Test
حقوق: OPEN
رقم الانضمام: edsair.doi.dedup.....2f1aec24d6952675038c2f20d111c963
قاعدة البيانات: OpenAIRE