Phys. Rev. D 77, 052003 (2008) [40 pages]
Measurement of the K+-->pi+nu[overline nu ] branching ratio
Abstract
References (83)
Citing Articles
S. Adler, 1 V. V. Anisimovsky, 2 M. Aoki, 3 M. Ardebili, 4 A. V. Artamonov, 5 M. Atiya, 1 B. Bassalleck, 6 A. O. Bazarko, 4 B. Bhuyan, 1 E. W. Blackmore, 3 D. A. Bryman, 7 S. Chen, 8,3 I-H. Chiang, 1 I.-A. Christidi, 9 M. R. Convery, 4 P. S. Cooper, 10 M. V. Diwan, 1 J. S. Frank, 1 T. Fujiwara, 11 J. Haggerty, 1 J. Hu, 3 T. Inagaki, 12 M. M. Ito, 4 A. P. Ivashkin, 2 D. E. Jaffe, 1 S. Kabe, 12 M. Kazumori, 12 Y. Kuno, 12 M. Kuriki, 12 S. H. Kettell, 1 M. M. Khabibullin, 2 A. N. Khotjantsev, 2 P. Kitching, 13 M. Kobayashi, 12 T. K. Komatsubara, 12 A. Konaka, 3 A. P. Kozhevnikov, 5 Yu. G. Kudenko, 2 A. Kushnirenko, 10 L. G. Landsberg, 5 B. Lewis, 6 K. K. Li, 1 L. S. Littenberg, 1 J. A. Macdonald, 3 D. R. Marlow, 4 R. A. McPherson, 4 P. D. Meyers, 4 J. Mildenberger, 3 O. V. Mineev, 2 M. Miyajima, 14 K. Mizouchi, 11 V. A. Mukhin, 5 N. Muramatsu, 15 T. Nakano, 15 M. Nomachi, 16 T. Nomura, 11 T. Numao, 3 V. F. Obraztsov, 5 K. Omata, 12 D. I. Patalakha, 5 S. V. Petrenko, 5 R. Poutissou, 3 E. J. Ramberg, 10 G. Redlinger, 1 T. Sato, 12 T. Sekiguchi, 12 T. Shinkawa, 17 F. C. Shoemaker, 4 A. J. S. Smith, 4 J. R. Stone, 4 R. C. Strand, 1 S. Sugimoto, 12 Y. Tamagawa, 14 R. Tschirhart, 10 T. Tsunemi, 12 D. V. Vavilov, 5 B. Viren, 1 N. V. Yershov, 2 Y. Yoshimura, 12 and T. Yoshioka121Brookhaven National Laboratory, Upton, New York 11973, USA
2Institute for Nuclear Research RAS, 60 October Revolution Pr. 7a, 117312 Moscow, Russia
3TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia, Canada V6T 2A3
4Joseph Henry Laboratories, Princeton University, Princeton, New Jersey 08544, USA
5Institute for High Energy Physics, Protvino, Moscow Region, 142 280, Russia
6Department of Physics and Astronomy, University of New Mexico, Albuquerque, New Mexico 87131, USA
7Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z1
8Department of Engineering Physics, Tsinghua University, Beijing 100084, China
9Department of Physics and Astronomy, Stony Brook University, Stony Brook, New York 11794, USA
10Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
11Department of Physics, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
12High Energy Accelerator Research Organization (KEK), Oho, Tsukuba, Ibaraki 305-0801, Japan
13Centre for Subatomic Research, University of Alberta, Edmonton, Canada T6G 2N5
14Department of Applied Physics, Fukui University, 3-9-1 Bunkyo, Fukui, Fukui 910-8507, Japan
15Research Center for Nuclear Physics, Osaka University, 10-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
16Laboratory of Nuclear Studies, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
17Department of Applied Physics, National Defense Academy, Yokosuka, Kanagawa 239-8686, Japan
Received 6 September 2007; published 13 March 2008
Experiment E949 at Brookhaven National Laboratory studied the rare decay K+-->pi+nu[overline nu ] and other processes with an exposure of 1.77×1012 K+'s. The data were analyzed using a blind analysis technique yielding one candidate event with an estimated background of 0.30±0.03 events. Combining this result with the observation of two candidate events by the predecessor experiment E787 gave the branching ratio [script B](K+-->pi+nu[overline nu ])=(1.47-0.89+1.30)×10-10, consistent with the standard model prediction of (0.74±0.20)×10-10. This is a more detailed report of results previously published [V. V. Anisimovsky et al., Phys. Rev. Lett. 93, 031801 (2004)].
©2008 The American Physical Society
| URL: |
http://link.aps.org/doi/10.1103/PhysRevD.77.052003
|
| DOI: |
10.1103/PhysRevD.77.052003 |
| PACS: |
13.20.Eb;
12.15.Hh;
14.80.Mz
|
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