Search for a Low Mass Particle Decaying into mu(+)mu(-) in B-0 -> K*X-0 and B-0 ->rho X-0 at Belle

  • Hyun, H. J.
  • Park, H. K.
  • Kim, H. O.
  • Park, H.
  • Aihara, H.
  • ... Cheon, B. G.
  • 외 104명
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초록

We search for dimuon decays of a low mass particle in the decays B-0 -> K*X-0 and B-0 -> rho X-0 using a data sample of 657 x 10(6)B (B) over bar events collected with the Belle detector at the KEKB asymmetric- energy e(+)e(-) collider. We find no evidence for such a particle in the mass range from 212 MeV/c(2) to 300 MeV/c(2) for lifetimes below 10(-12) s, and set upper limits on its branching fractions. In particular, we search for a particle with a mass of 214: 3 MeV/c(2) reported by the HyperCP experiment, and obtain upper limits on the products B(B-0 -> K*X-0) x B(X mu(+)mu(-)) < 2.26(2.27) x 10(-8) and B(B-0 -> rho X-0) x B(X -> mu(+)mu(-)) < 1.73(1.73) x 10(-8) at 90% C.L. for a scalar (vector) X particle.

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제목
Search for a Low Mass Particle Decaying into mu(+)mu(-) in B-0 -> K*X-0 and B-0 ->rho X-0 at Belle
저자
Hyun, H. J.Park, H. K.Kim, H. O.Park, H.Aihara, H.Arinstein, K.Aushev, T.Bakich, A. M.Barberio, E.Bay, A.Belous, K.Bischofberger, M.Bondar, A.Bozek, A.Bracko, M.Chang, M. -C.Chang, P.Chao, Y.Chen, A.Chen, P.Cheon, B. G.Cho, I. -S.Choi, Y.Dalseno, J.Danilov, M.Dash, M.Drutskoy, A.Eidelman, S.Gabyshev, N.Golob, B.Ha, H.Hara, T.Horii, Y.Hoshi, Y.Hou, W. -S.Hsiung, Y. B.Inami, K.Iwasaki, Y.Joshi, N. J.Kah, D. H.Kang, J. H.Kapusta, P.Kawasaki, T.Kichimi, H.Kiesling, C.Kim, H. J.Kim, J. H.Kim, M. J.Ko, B. R.Kodys, P.Krizan, P.Kuzmin, A.Kwon, Y. -J.Kyeong, S. -H.Lange, J. S.Lee, S. -H.Li, J.Liventsev, D.Louvot, R.Matyja, A.McOnie, S.Miyabayashi, K.Miyata, H.Miyazaki, Y.Mohanty, G. B.Nakano, E.Nakazawa, H.Nishida, S.Nishimura, K.Nitoh, O.Ohshima, T.Okuno, S.Olsen, S. L.Palka, H.Park, C. W.Pestotnik, R.Petric, M.Piilonen, L. E.Ryu, S.Sahoo, H.Sakai, Y.Schneider, O.Sevior, M. E.Shapkin, M.Shiu, J. -G.Shwartz, B.Singh, J. B.Stanic, S.Staric, M.Sumiyoshi, T.Suzuki, S.Teramoto, Y.Trabelsi, K.Uehara, S.Unno, Y.Uno, S.Varner, G.Varvell, K. E.Vervink, K.Wang, C. H.Wang, M. -Z.Wang, P.Wang, X. L.Wedd, R.Won, E.Yabsley, B. D.Yamashita, Y.Zhang, Z. P.Zhilich, V.Zyukova, O.
DOI
10.1103/PhysRevLett.105.091801
발행일
2010-08
유형
Article
저널명
Physical Review Letters
105
9
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