Abstract
The DIRAC experiment aims to measure the lifetime of {pi}+{pi}- atoms in the ground state with 10% precision, using the 24 GeV/c proton beam of the CERN Proton Synchrotron. As the value of the above lifetime of order 10-15s is dictated by a strong interaction at low energy, the precise measurement of this quantity enables to determine a combination of S-wave pion scattering lengths to 5%. Pion scattering lengths have been calculated in the framework of chiral perturbation theory with high precision. Thus the accurate measurement of these values would submit the understanding of chiral symmetry breaking of QCD to a crucial test. Some preliminary results from the analysis of a 2000 data sample are presented.
Afanasyev, L;
Doudarev, A;
Gortchakov, O;
Jabitski, M;
Karpukhin, V;
Komarov, V;
Koulikov, A;
Kouptsov, A;
Krouglov, V;
Krouglova, L;
Kuroda, K -I;
Nikitin, M;
Olchevskii, V;
Tarasov, A;
Zrelov, P;
[1]
Adeva, B;
Gomez, F;
Aguera, A Lopez;
Pardo, T Nunez
[2]
- JINR Dubna (Russian Federation)
- Santiago de Compostela University (Spain); and others
Citation Formats
Afanasyev, L, Doudarev, A, Gortchakov, O, Jabitski, M, Karpukhin, V, Komarov, V, Koulikov, A, Kouptsov, A, Krouglov, V, Krouglova, L, Kuroda, K -I, Nikitin, M, Olchevskii, V, Tarasov, A, Zrelov, P, Adeva, B, Gomez, F, Aguera, A Lopez, and Pardo, T Nunez.
Detection of atoms consisting of {pi}+ and {pi}- mesons at PS CERN.
United States: N. p.,
2002.
Web.
doi:10.1063/1.1482531.
Afanasyev, L, Doudarev, A, Gortchakov, O, Jabitski, M, Karpukhin, V, Komarov, V, Koulikov, A, Kouptsov, A, Krouglov, V, Krouglova, L, Kuroda, K -I, Nikitin, M, Olchevskii, V, Tarasov, A, Zrelov, P, Adeva, B, Gomez, F, Aguera, A Lopez, & Pardo, T Nunez.
Detection of atoms consisting of {pi}+ and {pi}- mesons at PS CERN.
United States.
https://doi.org/10.1063/1.1482531
Afanasyev, L, Doudarev, A, Gortchakov, O, Jabitski, M, Karpukhin, V, Komarov, V, Koulikov, A, Kouptsov, A, Krouglov, V, Krouglova, L, Kuroda, K -I, Nikitin, M, Olchevskii, V, Tarasov, A, Zrelov, P, Adeva, B, Gomez, F, Aguera, A Lopez, and Pardo, T Nunez.
2002.
"Detection of atoms consisting of {pi}+ and {pi}- mesons at PS CERN."
United States.
https://doi.org/10.1063/1.1482531.
@misc{etde_20620913,
title = {Detection of atoms consisting of {pi}+ and {pi}- mesons at PS CERN}
author = {Afanasyev, L, Doudarev, A, Gortchakov, O, Jabitski, M, Karpukhin, V, Komarov, V, Koulikov, A, Kouptsov, A, Krouglov, V, Krouglova, L, Kuroda, K -I, Nikitin, M, Olchevskii, V, Tarasov, A, Zrelov, P, Adeva, B, Gomez, F, Aguera, A Lopez, and Pardo, T Nunez}
abstractNote = {The DIRAC experiment aims to measure the lifetime of {pi}+{pi}- atoms in the ground state with 10% precision, using the 24 GeV/c proton beam of the CERN Proton Synchrotron. As the value of the above lifetime of order 10-15s is dictated by a strong interaction at low energy, the precise measurement of this quantity enables to determine a combination of S-wave pion scattering lengths to 5%. Pion scattering lengths have been calculated in the framework of chiral perturbation theory with high precision. Thus the accurate measurement of these values would submit the understanding of chiral symmetry breaking of QCD to a crucial test. Some preliminary results from the analysis of a 2000 data sample are presented.}
doi = {10.1063/1.1482531}
journal = []
issue = {1}
volume = {619}
journal type = {AC}
place = {United States}
year = {2002}
month = {Jun}
}
title = {Detection of atoms consisting of {pi}+ and {pi}- mesons at PS CERN}
author = {Afanasyev, L, Doudarev, A, Gortchakov, O, Jabitski, M, Karpukhin, V, Komarov, V, Koulikov, A, Kouptsov, A, Krouglov, V, Krouglova, L, Kuroda, K -I, Nikitin, M, Olchevskii, V, Tarasov, A, Zrelov, P, Adeva, B, Gomez, F, Aguera, A Lopez, and Pardo, T Nunez}
abstractNote = {The DIRAC experiment aims to measure the lifetime of {pi}+{pi}- atoms in the ground state with 10% precision, using the 24 GeV/c proton beam of the CERN Proton Synchrotron. As the value of the above lifetime of order 10-15s is dictated by a strong interaction at low energy, the precise measurement of this quantity enables to determine a combination of S-wave pion scattering lengths to 5%. Pion scattering lengths have been calculated in the framework of chiral perturbation theory with high precision. Thus the accurate measurement of these values would submit the understanding of chiral symmetry breaking of QCD to a crucial test. Some preliminary results from the analysis of a 2000 data sample are presented.}
doi = {10.1063/1.1482531}
journal = []
issue = {1}
volume = {619}
journal type = {AC}
place = {United States}
year = {2002}
month = {Jun}
}