Journalartikel
Autorenliste: Fujikawa, M.; Hayashii, H.; Eidelman, S.; Adachi, I.; Aihara, H.; Arinstein, K.; Aulchenko, V.; Aushev, T.; Bakich, A. M.; Balagura, V.; Barberio, E.; Bay, A.; Bedny, I.; Belous, K.; Bhardwaj, V.; Bitenc, U.; Bondar, A.; Bracko, M.; Brodzicka, J.; Browder, T. E.; Chang, P.; Chao, Y.; Chen, A.; Cheon, B. G.; Chistov, R.; Cho, I. -S.; Choi, Y.; Dalseno, J.; Dash, M.; Epifanov, D.; Gabyshev, N.; Golob, B.; Ha, H.; Haba, J.; Hara, K.; Hasegawa, Y.; Hayasaka, K.; Hazumi, M.; Heffernan, D.; Hoshi, Y.; Hou, W. -S.; Hyun, H. J.; Iijima, T.; Inami, K.; Ishikawa, A.; Ishino, H.; Itoh, R.; Iwabuchi, M.; Iwasaki, M.; Kah, D. H.; Kaji, H.; Kataoka, S. U.; Kawasaki, T.; Kichimi, H.; Kim, H. O.; Kim, S. K.; Kim, Y. I.; Kim, Y. J.; Korpar, S.; Krizan, P.; Krokovny, P.; Kumar, R.; Kuzmin, A.; Kwon, Y. -J.; Kyeong, S. -H.; Lange, J. S.; Lee, M. J.; Lee, S. E.; Limosani, A.; Liu, C.; Liu, Y.; Liventsev, D.; MacNaughton, J.; Mandl, F.; Matyja, A.; McOnie, S.; Miyabayashi, K.; Miyata, H.; Miyazaki, Y.; Mizuk, R.; Moloney, G. R.; Mori, T.; Nagasaka, Y.; Nakano, E.; Nakao, M.; Nakazawa, H.; Natkaniec, Z.; Nishida, S.; Nitoh, O.; Noguchi, S.; Nozaki, T.; Ohshima, T.; Okuno, S.; Olsen, S. L.; Ozaki, H.; Pakhlov, P.; Pakhlova, G.; Palka, H.; Park, C. W.; Park, H.; Park, H. K.; Peak, L. S.; Pestotnik, R.; Piilonen, L. E.; Poluektov, A.; Sahoo, H.; Sakai, Y.; Schneider, O.; Schwartz, A. J.; Seidl, R.; Sekiya, A.; Senyo, K.; Sevior, M. E.; Shapkin, M.; Shebalin, V.; Shen, C. P.; Shiu, J. -G.; Shwartz, B.; Singh, J. B.; Sokolov, A.; Stanic, S.; Staric, M.; Sumiyoshi, T.; Takasaki, F.; Tamura, N.; Tanaka, M.; Taylor, G. N.; Teramoto, Y.; Trabelsi, K.; Tsuboyama, T.; Uehara, S.; Uglov, T.; Unno, Y.; Uno, S.; Urquijo, P.; Usov, Y.; Varner, G.; Vervink, K.; Vinokurova, A.; Wang, C. H.; Wang, P.; Wang, X. L.; Watanabe, Y.; Won, E.; Yamashita, Y.; Yamauchi, M.; Yuan, C. Z.; Zhang, C. C.; Zhang, Z. P.; Zhilich, V.; Zhulanov, V.; Zivko, T.; Zupanc, A.; Zyukova, O.
Jahr der Veröffentlichung: 2008
Zeitschrift: Physical Review D
Bandnummer: 78
Heftnummer: 7
ISSN: 1550-7998
eISSN: 1550-2368
DOI Link: https://doi.org/10.1103/PhysRevD.78.072006
Verlag: American Physical Society
Abstract:
We report a high-statistics measurement of the branching fraction for tau(-)->pi(-)pi(0)nu(tau) and the invariant mass spectrum of the produced pi(-)pi(0) system using 72.2 fb(-1) of data recorded with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. The branching fraction obtained is (25.24 +/- 0.01 +/- 0.39)%, where the first error is statistical and the second is systematic. The unfolded pi(-)pi(0) mass spectrum is used to determine resonance parameters for the rho(770), rho(')(1450), and rho('')(1700) mesons. We also use this spectrum to estimate the hadronic (2 pi) contribution to the anomalous magnetic moment of the muon (a(mu)(pi pi)). Our result for a(mu)(pi pi) integrated over the mass range root s=2m(pi)-1.8 GeV/c(2) is a(mu)(pi pi)=(523.5 +/- 1.5(exp)+/- 2.6(Br)+/- 2.5(isospin))x10(-10), where the first error is due to the experimental uncertainties, the second is due to the uncertainties in the branching fractions, and the third is due to the uncertainties in the isospin-violating corrections.
Zitierstile
Harvard-Zitierstil: Fujikawa, M., Hayashii, H., Eidelman, S., Adachi, I., Aihara, H., Arinstein, K., et al. (2008) High-statistics study of the τ-→π-π0ντ decay, PHYSICAL REVIEW D, 78(7), Article 072006. https://doi.org/10.1103/PhysRevD.78.072006
APA-Zitierstil: Fujikawa, M., Hayashii, H., Eidelman, S., Adachi, I., Aihara, H., Arinstein, K., Aulchenko, V., Aushev, T., Bakich, A., Balagura, V., Barberio, E., Bay, A., Bedny, I., Belous, K., Bhardwaj, V., Bitenc, U., Bondar, A., Bracko, M., Brodzicka, J., ...Zyukova, O. (2008). High-statistics study of the τ-→π-π0ντ decay. PHYSICAL REVIEW D. 78(7), Article 072006. https://doi.org/10.1103/PhysRevD.78.072006
Schlagwörter
Bhabha scattering; BRANCHING RATIOS; e(+)e(-) annihilation; ELECTROWEAK RADIATIVE-CORRECTIONS; MAGNETIC-MOMENT; MONTE-CARLO SIMULATION; PION FORM-FACTOR; PI(+)PI(-) CROSS-SECTION; PROGRAM BHLUMI; SPECTRAL FUNCTIONS
