Abstract
Using a large sample of pure, slow, short lived K 0 mesons collected with KLOE detector at DAΦNE, we have measured the K S lifetime. From a fit to the proper time distribution we find τ(K S )=(89.562±0.029stat±0.043syst) ps. This is the most precise measurement to date of the short lived K 0 meson lifetime, in good agreement with the world average derived from previous measurements. We observe no dependence of the lifetime on the direction of the K S in galactic coordinates.
Article PDF
Similar content being viewed by others
References
F. Ambrosino et al. (KLOE Collaboration), Eur. Phys. J. C 48, 767 (2006)
F. Ambrosino et al. (KLOE Collaboration), Phys. Lett. B 632, 76 (2006)
F. Ambrosino et al. (KLOE Collaboration), Phys. Lett. B 632, 43 (2006)
F. Ambrosino et al. (KLOE Collaboration), Phys. Lett. B 626, 15 (2005)
F. Ambrosino et al. (KLOE Collaboration), J. High Energy Phys. 01, 073 (2008)
F. Ambrosino et al. (KLOE Collaboration), Phys. Lett. B 666, 305 (2008)
F. Ambrosino et al. (KLOE Collaboration), J. High Energy Phys. 04, 073 (2008)
K. Nakamura et al. (Particle Data Group), J. Phys. G 37, 075021 (2010)
F. Ambrosino et al. (KLOE Collaboration), Nucl. Instrum. Methods A 534, 403 (2004)
F. Ambrosino et al. (KLOE Collaboration), J. High Energy Phys. 0712, 073 (2007)
M. Adinolfi et al. (KLOE Collaboration), Nucl. Instrum. Methods A 488, 51 (2002)
M. Adinolfi et al. (KLOE Collaboration), Nucl. Instrum. Methods A 482, 364 (2002)
M. Adinolfi et al. (KLOE Collaboration), Nucl. Instrum. Methods A 492, 134 (2002)
F. Bossi, E. De Lucia, J. Lee-Franzini, S. Miscetti, M. Palutan, KLOE Collaboration, Riv. Nuovo Cimento 31 (10), 531 (2008)
L. Bertanza et al., Z. Phys. C 73, 629 (1997)
A. Lai et al., Phys. Lett. B 537, 28 (2002)
A. Alavi-Harati et al., Phys. Rev. D 67, 012005 (2003)
G. Hinshaw et al., Astrophys. J. Suppl. Ser. 180, 225 (2008)
Author information
Authors and Affiliations
Consortia
Corresponding author
Rights and permissions
Open Access This is an open access article distributed under the terms of the Creative Commons Attribution Noncommercial License (https://creativecommons.org/licenses/by-nc/2.0), which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.
About this article
Cite this article
The KLOE Collaboration., Ambrosino, F., Antonelli, A. et al. Precision measurement of the K S meson lifetime with the KLOE detector. Eur. Phys. J. C 71, 1604 (2011). https://doi.org/10.1140/epjc/s10052-011-1604-7
Received:
Revised:
Published:
DOI: https://doi.org/10.1140/epjc/s10052-011-1604-7