Measurement of the CP violation parameters in B-0 -> pi(+) pi(-) decays

  • Dalseno, J.
  • Prothmann, K.
  • Kiesling, C.
  • Adachi, I.
  • Aihara, H.
  • ... Cheon, B. G.
  • 외 184명
Citations

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21
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46

초록

We present a measurement of the charge-parity (CP) violating parameters in B-0 -> pi(+) pi(-) decays. The results are obtained from the final data sample containing 772 x 10(6) B (B) over bar pairs collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+) e(-) collider. We obtain the CP violation parameters A(cp)(B-0 -> pi(+) pi(-)) = +0.33 +/- 0.06(stat) +/- 0.03(syst), S-cp(B-0 -> pi(+) pi(-)) = -0.64 +/- 0.08(stat) +/- 0.03(syst), where A(CP) and S-CP represent the direct and mixing-induced CP asymmetries in B-0 -> pi(+) pi(-) decays, respectively. Using an isospin analysis including results from other Belle measurements, we find 23.8 degrees < phi(2) < 66.8 degrees is disfavored at the 1 sigma level, where phi(2) is one of the three interior angles of the Cabibbo-Kobayashi-Maskawa unitarity triangle related to B-u,B-d decays.

제목
Measurement of the CP violation parameters in B-0 -> pi(+) pi(-) decays
저자
Dalseno, J.Prothmann, K.Kiesling, C.Adachi, I.Aihara, H.Arinstein, K.Asner, D. M.Aulchenko, V.Aushev, T.Bakich, A. M.Bala, A.Bay, A.Behera, P.Bhardwaj, V.Bhuyan, B.Bondar, A.Bonvicini, G.Bozek, A.Bracko, M.Browder, T. E.Chekelian, V.Chen, A.Chen, P.Cheon, B. G.Chilikin, K.Chistov, R.Cho, K.Chobanova, V.Choi, S-KChoi, Y.Cinabro, D.Danilov, M.Dolezal, Z.Drasal, Z.Drutskoy, A.Dutta, D.Dutta, K.Eidelman, S.Farhat, H.Fast, J. E.Feindt, M.Ferber, T.Frey, A.Gaur, V.Ganguly, S.Gillard, R.Goh, Y. M.Golob, B.Haba, J.Hara, T.Hayasaka, K.Hayashii, H.Higuchi, T.Hoshi, Y.Hou, W-SHyun, H. J.Iijima, T.Ishikawa, A.Itoh, R.Iwasaki, Y.Julius, T.Kah, D. H.Kato, E.Kawai, H.Kawasaki, T.Kim, D. Y.Kim, H. J.Kim, J. B.Kim, J. H.Kim, K. T.Kim, Y. J.Kinoshita, K.Klucar, J.Ko, B. R.Kodys, P.Korpar, S.Krizan, P.Krokovny, P.Kronenbitter, B.Kuzmin, A.Kwon, Y-JLee, S-HLi, J.Li, Y.Gioi, L. LiLibby, J.Liu, C.Liventsev, D.Lukin, P.Matvienko, D.Miyabayashi, K.Miyata, H.Mizuk, R.Mohanty, G. B.Moll, A.Mori, T.Moser, H-GMuramatsu, N.Mussa, R.Nagasaka, Y.Nakao, M.Nayak, M.Nedelkovska, E.Ng, C.Niebuhr, C.Nisar, N. K.Nishida, S.Nitoh, O.Ogawa, S.Okuno, S.Olsen, S. L.Pakhlov, P.Pakhlova, G.Park, C. W.Park, H.Park, H. K.Pedlar, T. K.Pestotnik, R.Petric, M.Piilonen, L. E.Ritter, M.Roehrken, M.Rostomyan, A.Ryu, S.Sahoo, H.Saito, T.Sakai, Y.Sandilya, S.Santelj, L.Sanuki, T.Savinov, V.Schneider, O.Schnell, G.Schwanda, C.Schwartz, A. J.Semmler, D.Senyo, K.Seon, O.Sevior, M. E.Shapkin, M.Shen, C. P.Shibata, T-AShiu, J-GShwartz, B.Sibidanov, A.Simon, F.Sohn, Y-SSolovieva, E.Stanic, S.Staric, M.Steder, M.Sumihama, M.Sumisawa, K.Sumiyoshi, T.Tamponi, U.Tatishvili, G.Teramoto, Y.Trabelsi, K.Tsuboyama, T.Uchida, M.Uehara, S.Uglov, T.Unno, Y.Uno, S.Urquijo, P.Ushiroda, Y.Vahsen, S. E.Van Hulse, C.Vanhoefer, P.Varner, G.Vorobyev, V.Wagner, M. N.Wang, C. H.Wang, P.Wang, X. L.Watanabe, M.Watanabe, Y.Williams, K. M.Won, E.Yabsley, B. D.Yamamoto, H.Yamashita, Y.Yashchenko, S.Yook, Y.Yuan, C. Z.Yusa, Y.Zhang, Z. P.Zhilich, V.Zhulanov, V.Zupanc, A.
DOI
10.1103/PhysRevD.88.092003
발행일
2013-11
유형
Article
저널명
Physical Review d
88
9
페이지
1 ~ 11

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