Measurement of the lifetime difference in D0 meson decays

K Abe; K Abe; R Abe; T Abe; I Adachi; Byoung Sup Ahn; H Aihara; M Akatsu; Y Asano; T Aso; V Aulchenko; T Aushev; A M Bakich; Y Ban; S Behari; P K Behera; A Bondar; A Bozek; T E Browder; B C K Casey; Y Chao; B G Cheon; R Chistov; Y Choi; L Y Dong; S Eidelman; V Eiges; F Fang; H Fujii; C Fukunaga; M Fukushima; N Gabyshev; A Garmash; T Gershon; A Gordon; R Guo; J Haba; H Hamasaki; K Hanagaki; F Handa; K Hara; T Hara; N C Hastings; H Hayashii; M Hazumi; E M Heenan; I Higuchi; T Higuchi; T Hojo; T Hokuue; Y Hoshi; K Hoshina; S R Hou; W-S Hou; S-C Hsu; H-C Huang; Y Igarashi; T Iijima; H Ikeda; K Inami; A Ishikawa; H Ishino; R Itoh; H Iwasaki; Y Iwasaki; P Jalocha; H K Jang; J H Kang; J S Kang; N Katayama; H Kawai; H Kawai; N Kawamura; T Kawasaki; H Kichimi; D W Kim; Heejong Kim; H J Kim; H O Kim; Hyunwoo Kim; T H Kim; K Kinoshita; S Kobayashi; H Konishi; S Korpar; P Krizan; P Krokovny; R Kulasiri; S Kumar; A Kuzmin; Y-J Kwon; J S Lange; G Leder; S H Lee; D Liventsev; J MacNaughton; D Marlow; T Matsubara; S Matsumoto; T Matsumoto; Y Mikami; K Miyabayashi; H Miyake; H Miyata; G R Moloney; S Mori; T Mori; A Murakami; T Nagamine; Y Nagasaka; Y Nagashima; T Nakadaira; E Nakano; M Nakao; J W Nam; Z Natkaniec; K Neichi; S Nishida; O Nitoh; S Noguchi; T Nozaki; S Ogawa; T Ohshima; T Okabe; S Okuno; S L Olsen; W Ostrowicz; H Ozaki; P Pakhlov; H Palka; C S Park; C W Park; H Park; K S Park; J-P Perroud; M Peters; L E Piilonen; J L Rodriguez; N Root; M Rozanska; K Rybicki; H Sagawa; Y Sakai; H Sakamoto; M Satapathy; A Satpathy; S Schrenk; S Semenov; K Senyo; M E Sevior; H Shibuya; B Shwartz; J B Singh; S Stanic; K Sumisawa; T Sumiyoshi; S Suzuki; S Y Suzuki; S K Swain; H Tajima; T Takahashi; F Takasaki; M Takita; K Tamai; N Tamura; J Tanaka; M Tanaka; Y Tanaka; Y Teramoto; M Tomoto; T Tomura; S N Tovey; K Trabelsi; T Tsuboyama; T Tsukamoto; S Uehara; K Ueno; Y Unno; S Uno; Y Ushiroda; K E Varvell; C C Wang; C H Wang; J G Wang; M-Z Wang; Y Watanabe; E Won; B D Yabsley; Y Yamada; M Yamaga; A Yamaguchi; H Yamamoto; Y Yamashita; M Yamauchi; M Yokoyama; K Yoshida; Y Yusa; C C Zhang; J Zhang; Y Zheng; V Zhilich; D Zontar; Belle Collaboration

doi:10.1103/PhysRevLett.88.162001

Measurement of the lifetime difference in D0 meson decays

Phys Rev Lett. 2002 Apr 22;88(16):162001. doi: 10.1103/PhysRevLett.88.162001. Epub 2002 Apr 8.

Authors

K Abe¹, K Abe, R Abe, T Abe, I Adachi, Byoung Sup Ahn, H Aihara, M Akatsu, Y Asano, T Aso, V Aulchenko, T Aushev, A M Bakich, Y Ban, S Behari, P K Behera, A Bondar, A Bozek, T E Browder, B C K Casey, Y Chao, B G Cheon, R Chistov, Y Choi, L Y Dong, S Eidelman, V Eiges, F Fang, H Fujii, C Fukunaga, M Fukushima, N Gabyshev, A Garmash, T Gershon, A Gordon, R Guo, J Haba, H Hamasaki, K Hanagaki, F Handa, K Hara, T Hara, N C Hastings, H Hayashii, M Hazumi, E M Heenan, I Higuchi, T Higuchi, T Hojo, T Hokuue, Y Hoshi, K Hoshina, S R Hou, W-S Hou, S-C Hsu, H-C Huang, Y Igarashi, T Iijima, H Ikeda, K Inami, A Ishikawa, H Ishino, R Itoh, H Iwasaki, Y Iwasaki, P Jalocha, H K Jang, J H Kang, J S Kang, N Katayama, H Kawai, H Kawai, N Kawamura, T Kawasaki, H Kichimi, D W Kim, Heejong Kim, H J Kim, H O Kim, Hyunwoo Kim, T H Kim, K Kinoshita, S Kobayashi, H Konishi, S Korpar, P Krizan, P Krokovny, R Kulasiri, S Kumar, A Kuzmin, Y-J Kwon, J S Lange, G Leder, S H Lee, D Liventsev, J MacNaughton, D Marlow, T Matsubara, S Matsumoto, T Matsumoto, Y Mikami, K Miyabayashi, H Miyake, H Miyata, G R Moloney, S Mori, T Mori, A Murakami, T Nagamine, Y Nagasaka, Y Nagashima, T Nakadaira, E Nakano, M Nakao, J W Nam, Z Natkaniec, K Neichi, S Nishida, O Nitoh, S Noguchi, T Nozaki, S Ogawa, T Ohshima, T Okabe, S Okuno, S L Olsen, W Ostrowicz, H Ozaki, P Pakhlov, H Palka, C S Park, C W Park, H Park, K S Park, J-P Perroud, M Peters, L E Piilonen, J L Rodriguez, N Root, M Rozanska, K Rybicki, H Sagawa, Y Sakai, H Sakamoto, M Satapathy, A Satpathy, S Schrenk, S Semenov, K Senyo, M E Sevior, H Shibuya, B Shwartz, J B Singh, S Stanic, K Sumisawa, T Sumiyoshi, S Suzuki, S Y Suzuki, S K Swain, H Tajima, T Takahashi, F Takasaki, M Takita, K Tamai, N Tamura, J Tanaka, M Tanaka, Y Tanaka, Y Teramoto, M Tomoto, T Tomura, S N Tovey, K Trabelsi, T Tsuboyama, T Tsukamoto, S Uehara, K Ueno, Y Unno, S Uno, Y Ushiroda, K E Varvell, C C Wang, C H Wang, J G Wang, M-Z Wang, Y Watanabe, E Won, B D Yabsley, Y Yamada, M Yamaga, A Yamaguchi, H Yamamoto, Y Yamashita, M Yamauchi, M Yokoyama, K Yoshida, Y Yusa, C C Zhang, J Zhang, Y Zheng, V Zhilich, D Zontar; Belle Collaboration

Affiliation

¹ High Energy Accelerator Research Organization (KEK), Tsukuba.

PMID: 11955228
DOI: 10.1103/PhysRevLett.88.162001

Abstract

We report a measurement of the D0-D macro(0) mixing parameter y(CP) using 23.4 fb(-1) of data collected near the Upsilon(4S) resonance with the Belle detector at KEKB. y(CP) is measured from the lifetime difference of D0 mesons decaying into the K(-)pi(+) state and the CP-even eigenstate K(-)K(+). We find y(CP) = (-0.5+/-1.0(+0.7)(-0.8))x10(-2), where the first error is statistical and the second is systematic, corresponding to a 95% confidence interval -0.030<y(CP)<0.020.