Study of the K+ pi(+) pi(-) final state in B+ -> J/psi K+ pi(+) pi(-) and B+ -> psi ' K+ pi(+) pi(-)

  • Guler, H.
  • Aihara, H.
  • Arinstein, K.
  • Aulchenko, V.
  • Aushev, T.
  • ... Won, E.
  • 외 115명
Citations

WEB OF SCIENCE

33
Citations

SCOPUS

34

초록

Using 535 X 10(6) B-meson pairs collected by the Belle detector at the KEKB e(+)e(-) collider, we measure branching fractions of (7.16 +/- 0.10(stat) +/- 0.60(syst) X 10(-4) for B+ -> J/psi K+ pi(+) pi(-) and (4.31 +/- 0.20(stat) +/- 0.50(syst)) X 10(-4) for B+ -> psi' K+ pi(+) pi(-). We perform amplitude analyses to determine the resonant structure of the K+ pi(+) pi(-) final state in B+ -> J/psi K+ pi(+) pi(-) and B+ -> psi' K+ pi(+) pi(-) and find that the K-1(1270) is a prominent component of both decay modes. There is significant interference among the different intermediate states, which leads, in particular, to a striking distortion of the rho line shape due to the omega. Based on the results of the fit to the B+ -> J/psi K+ pi(+) pi(-) data, the relative decay fractions of the K-1(1270) to K rho, K omega, and K*(892)pi are consistent with previous measurements, but the decay fraction to K-0(*)(1430) is significantly smaller. Finally, by floating the mass and width of the K-1(1270) in an additional fit of the B+ -> J/psi K+ pi(+) pi(-) data, we measure a mass of (1248.1 +/- 3.3(stat) +/- 1.4(syst)) MeV/c(2) and a width of (119.5 +/- 5.2(stat) +/- 6.7(syst)) MeV/c(2) for the K-1(1270).

키워드

MESONSQUARK
제목
Study of the K+ pi(+) pi(-) final state in B+ -> J/psi K+ pi(+) pi(-) and B+ -> psi ' K+ pi(+) pi(-)
저자
Guler, H.Aihara, H.Arinstein, K.Aulchenko, V.Aushev, T.Bakich, A. M.Balagura, V.Barberio, E.Belous, K.Bhardwaj, V.Bischofberger, M.Bozek, A.Bracko, M.Browder, T. E.Chang, P.Chao, Y.Chen, A.Chen, P.Cheon, B. G.Cho, K.Choi, S. -K.Choi, Y.Dalseno, J.Dolezal, Z.Drasal, Z.Drutskoy, A.Dungel, W.Eidelman, S.Esen, S.Ha, H.Hayashii, H.Horii, Y.Hoshi, Y.Hou, W. -S.Hyun, H. J.Inami, K.Itoh, R.Iwabuchi, M.Joshi, N. J.Julius, T.Kang, J. H.Katayama, N.Kawasaki, T.Kim, H. J.Kim, H. O.Kim, J. H.Kim, M. J.Kim, Y. J.Kinoshita, K.Ko, B. R.Kodys, P.Krokovny, P.Kumita, T.Kuzmin, A.Kwon, Y. -J.Kyeong, S. -H.Lee, M. J.Lee, S. -H.Li, J.Liu, C.Liventsev, D.Louvot, R.MacNaughton, J.Marlow, D.Matyja, A.McOnie, S.Miyabayashi, K.Miyata, H.Miyazaki, Y.Mizuk, R.Mohanty, G. B.Mori, T.Nakao, M.Natkaniec, Z.Nishida, S.Nishimura, K.Nitoh, O.Ogawa, S.Okuno, S.Olsen, S. L.Pakhlov, P.Park, C. W.Park, H.Park, H. K.Pestotnik, R.Petric, M.Piilonen, L. E.Poluektov, A.Ryu, S.Sahoo, H.Sakai, Y.Schneider, O.Senyo, K.Sevior, M. E.Shapkin, M.Shen, C. P.Shiu, J. -G.Smerkol, P.Stanic, S.Staric, M.Sumisawa, K.Sumiyoshi, T.Teramoto, Y.Trabelsi, K.Uehara, S.Unno, Y.Uno, S.Varner, G.Wang, C. H.Wang, M. -Z.Watanabe, M.Watanabe, Y.Williams, K. M.Won, E.Yamashita, Y.Zhang, Z. P.Zhilich, V.Zhou, P.Zhulanov, V.Zivko, T.Zupanc, A.
DOI
10.1103/PhysRevD.83.032005
발행일
2011-02-03
유형
Article
저널명
Physical Review D - Particles, Fields, Gravitation and Cosmology
83
3