Study of B →p p ππ STUDY of B →p p ππ CHU K. et al.

Date Issued
01-03-2020
Author(s)
Chu, K.
Wang, M. Z.
Adachi, I.
Aihara, H.
Al Said, S.
Asner, D. M.
Aulchenko, V.
Aushev, T.
Ayad, R.
Babu, V.
Badhrees, I.
Bahinipati, S.
Bakich, A. M.
Behera, P.
Belenõ, C.
Bennett, J.
Bhardwaj, V.
Bhuyan, B.
Biswal, J.
Bobrov, A.
Bonvicini, G.
Bozek, A.
BraÄ ko, M.
Campajola, M.
Cao, L.
ÄŒervenkov, D.
Chang, P.
Chekelian, V.
Chen, A.
Cheon, B. G.
Chilikin, K.
Cho, H. E.
Cho, K.
Choi, S. K.
Choi, Y.
Choudhury, S.
Cinabro, D.
Cunliffe, S.
Dash, N.
Di Capua, F.
Di Carlo, S.
DoleŽal, Z.
Dong, T. V.
Eidelman, S.
Epifanov, D.
Fast, J. E.
Ferber, T.
Frey, A.
Fulsom, B. G.
Garg, R.
Gaur, V.
Gabyshev, N.
Garmash, A.
Giri, A.
Goldenzweig, P.
Golob, B.
Hartbrich, O.
Hayasaka, K.
Hayashii, H.
Hou, W. S.
Hsu, C. L.
Iijima, T.
Inami, K.
Ishikawa, A.
Itoh, R.
Iwasaki, M.
Iwasaki, Y.
Jacobs, W. W.
Jeon, H. B.
Jin, Y.
Joffe, D.
Joo, K. K.
Karyan, G.
Kawasaki, T.
Kim, D. Y.
Kim, S. H.
Kinoshita, K.
Kodyš, P.
Korpar, S.
KriŽan, P.
Kroeger, R.
Krokovny, P.
Kulasiri, R.
Kwon, Y. J.
Lai, Y. T.
Lee, I. S.
Lee, S. C.
Li, L. K.
Li Gioi, L.
Indian Institute of Technology, Madras
Lieret, K.
Liventsev, D.
Luo, T.
Masuda, M.
Matvienko, D.
Merola, M.
Miyabayashi, K.
Mizuk, R.
Mohanty, G. B.
Mori, T.
DOI
Abstract
Using a data sample of 772×106 BB pairs collected on the Ï'(4S) resonance with the Belle detector at the KEKB asymmetric energy e+e-collider, we report the observation of B0→ppπ+π- A nd the first observation of B+→ppπ+π0. We measure a decay branching fraction of (0.83±0.17±0.17)×10-6 in B0→ppπ+π-for Mπ+π-<1.22 GeV/c2 with a significance of 5.5 standard deviations. The contribution from B0→ppK0 is excluded. We measure a decay branching fraction of (4.58±1.17±0.67)×10-6 for B+→ppπ+π0 with Mπ+π0<1.3 GeV/c2 with a significance of 5.4 standard deviations. We study the difference of the Mpp distributions in B0→ppπ+π- A nd B+→ppπ+π0.
Volume
101