Detection of π+π- atoms with the DIRAC spectrometer at CERN
Detection of π+π- atoms with the DIRAC spectrometer at CERN
复制标题
使用 CERN 的 DIRAC 光谱仪检测 π+π- 原子
DOI:
10.1088/0954-3899/30/12/012
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发表时间:
2004
期刊:
影响因子:
--
通讯作者:
P. Zrelov
中科院分区:
文献类型:
--
作者:
B. Adeva;L. Afanasyev;M. Benayoun;A. Benelli;Z. Berka;V. Brekhovskikh;G. Caragheorgheopol;T. Čechák;M. Chiba;S. Constantinescu;S. Costantini;C. Détraz;D. Dreossi;D. Drijard;A. Dudarev;I. Evangelou;M. Ferro;M. Gallas;J. Gerndt;R. Giacomich;P. Gianotti;D. Goldin;F. Gómez;A. Gorin;O. Gorchakov;C. Guaraldo;M. Hansroul;R. Hošek;M. Iliescu;N. Kalinina;V. Karpukhin;J. Klusoň;M. Kobayashi;P. Kokkas;V. Komarov;V. Kruglov;L. Kruglova;A. Kulikov;A. Kuptsov;I. Kurochkin;K. Kuroda;A. Lamberto;A. Lanaro;V. Lapshin;R. Lednický;P. Leruste;P. Sandri;A. L. Aguera;V. Lucherini;T. Maki;N. Manthos;I. Manuilov;L. Montanet;J. Narjoux;L. Nemenov;M. Nikitin;T. Pardo;K. Okada;V. Olchevskii;A. Pazos;M. Pentia;A. Penzo;J. Perreau;C. Petrascu;M. Pló;T. Ponta;G. Rappazzo;A. Fernandez;A. Romero;A. Ryazantsev;V. Rykalin;C. Santamarina;J. Saborido;J. Schacher;C. Schuetz;A. Sidorov;J. Smolík;F. Takeutchi;A. Tarasov;L. Tauscher;M. Tobar;S. Trusov;V. Utkin;O. Doce;P. Vázquez;S. Vlachos;V. Yazkov;Y. Yoshimura;M. Zhabitsky;P. Zrelov
The goal of the DIRAC experiment at CERN is to measure with high precision the lifetime of the π + π - atom (A 2π ), which is of order 3 x 10 -15 s, and thus to determine the s-wave ππ-scattering lengths difference |a 0 - a 2 |. A 2π atoms are detected through the characteristic features of π + π - 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.
DOI:
--
发表时间:
2003
期刊:
Nucl.Instr.and Meth.inPhys.Res. A515
影响因子:
--
作者:
B.Adeva;et al.;B.Adeva et al.
通讯作者:
B.Adeva et al.
DOI:
--
发表时间:
2002
期刊:
Nucl.Instr.and Meth.in Phys.Res. A491
影响因子:
--
作者:
B.Adeva;et al.;B.Adeva et al.;B.Adeva et al.;L.Afanasyev et al.
通讯作者:
L.Afanasyev et al.