Inclusive and exclusive measurements of B decays to χc1 and χc2 at Belle

(Belle Collaboration)

doi:10.1103/PhysRevD.93.052016

Inclusive and exclusive measurements of B decays to χc1 and χc2 at Belle

(Belle Collaboration)

Department of Physics

Research output: Contribution to journal › Article › peer-review

23 Citations (Scopus)

Abstract

We report inclusive and exclusive measurements for χc1 and χc2 production in B decays. We measure B(B→χc1X)=(3.03±0.05(stat)±0.24(syst))×10-3 and B(B→χc2X)=(0.70±0.06(stat)±0.10(syst))×10-3. For the first time, χc2 production in exclusive B decays in the modes B0→χc2π-K+ and B+→χc2π+π-K+ has been observed, along with first evidence for the B+→χc2π+KS0 decay mode. For χc1 production, we report the first observation in the B+→χc1π+π-K+, B0→χc1π+π-KS0 and B0→χc1π0π-K+ decay modes. Using these decay modes, we observe a difference in the production mechanism of χc2 in comparison to χc1 in B decays. In addition, we report searches for X(3872) and χc1(2P) in the B+→(χc1π+π-)K+ decay mode. The reported results use 772×106 BB-events collected at the (4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider.

Original language	English
Article number	052016
Journal	Physical Review D
Volume	93
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevD.93.052016
Publication status	Published - 2016 Mar 29

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1103/PhysRevD.93.052016

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@article{2bd52dde0ba848d188067c59ed9c9650,

title = "Inclusive and exclusive measurements of B decays to χc1 and χc2 at Belle",

abstract = "We report inclusive and exclusive measurements for χc1 and χc2 production in B decays. We measure B(B→χc1X)=(3.03±0.05(stat)±0.24(syst))×10-3 and B(B→χc2X)=(0.70±0.06(stat)±0.10(syst))×10-3. For the first time, χc2 production in exclusive B decays in the modes B0→χc2π-K+ and B+→χc2π+π-K+ has been observed, along with first evidence for the B+→χc2π+KS0 decay mode. For χc1 production, we report the first observation in the B+→χc1π+π-K+, B0→χc1π+π-KS0 and B0→χc1π0π-K+ decay modes. Using these decay modes, we observe a difference in the production mechanism of χc2 in comparison to χc1 in B decays. In addition, we report searches for X(3872) and χc1(2P) in the B+→(χc1π+π-)K+ decay mode. The reported results use 772×106 BB-events collected at the (4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider.",

author = "{(Belle Collaboration)} and V. Bhardwaj and K. Miyabayashi and E. Panzenb{\"o}ck and K. Trabelsi and A. Frey and A. Abdesselam and I. Adachi and H. Aihara and {Al Said}, S. and K. Arinstein and Asner, {D. M.} and H. Atmacan and V. Aulchenko and T. Aushev and R. Ayad and V. Babu and I. Badhrees and S. Bahinipati and Bakich, {A. M.} and A. Bala and V. Bansal and E. Barberio and B. Bhuyan and J. Biswal and A. Bobrov and A. Bondar and A. Bozek and M. Bra{\v c}ko and Browder, {T. E.} and D. {\v C}ervenkov and V. Chekelian and A. Chen and Cheon, {B. G.} and K. Chilikin and R. Chistov and K. Cho and V. Chobanova and Choi, {S. K.} and Y. Choi and D. Cinabro and J. Dalseno and M. Danilov and Z. Dole{\v Z}al and D. Dutta and S. Eidelman and H. Farhat and Fast, {J. E.} and T. Ferber and O. Frost and Fulsom, {B. G.}",

year = "2016",

month = mar,

day = "29",

doi = "10.1103/PhysRevD.93.052016",

language = "English",

volume = "93",

journal = "Physical Review D",

issn = "2470-0010",

publisher = "American Physical Society",

number = "5",

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TY - JOUR

T1 - Inclusive and exclusive measurements of B decays to χc1 and χc2 at Belle

AU - (Belle Collaboration)

AU - Bhardwaj, V.

AU - Miyabayashi, K.

AU - Panzenböck, E.

AU - Trabelsi, K.

AU - Frey, A.

AU - Abdesselam, A.

AU - Adachi, I.

AU - Aihara, H.

AU - Al Said, S.

AU - Arinstein, K.

AU - Asner, D. M.

AU - Atmacan, H.

AU - Aulchenko, V.

AU - Aushev, T.

AU - Ayad, R.

AU - Babu, V.

AU - Badhrees, I.

AU - Bahinipati, S.

AU - Bakich, A. M.

AU - Bala, A.

AU - Bansal, V.

AU - Barberio, E.

AU - Bhuyan, B.

AU - Biswal, J.

AU - Bobrov, A.

AU - Bondar, A.

AU - Bozek, A.

AU - Bračko, M.

AU - Browder, T. E.

AU - Červenkov, D.

AU - Chekelian, V.

AU - Chen, A.

AU - Cheon, B. G.

AU - Chilikin, K.

AU - Chistov, R.

AU - Cho, K.

AU - Chobanova, V.

AU - Choi, S. K.

AU - Choi, Y.

AU - Cinabro, D.

AU - Dalseno, J.

AU - Danilov, M.

AU - DoleŽal, Z.

AU - Dutta, D.

AU - Eidelman, S.

AU - Farhat, H.

AU - Fast, J. E.

AU - Ferber, T.

AU - Frost, O.

AU - Fulsom, B. G.

PY - 2016/3/29

Y1 - 2016/3/29

N2 - We report inclusive and exclusive measurements for χc1 and χc2 production in B decays. We measure B(B→χc1X)=(3.03±0.05(stat)±0.24(syst))×10-3 and B(B→χc2X)=(0.70±0.06(stat)±0.10(syst))×10-3. For the first time, χc2 production in exclusive B decays in the modes B0→χc2π-K+ and B+→χc2π+π-K+ has been observed, along with first evidence for the B+→χc2π+KS0 decay mode. For χc1 production, we report the first observation in the B+→χc1π+π-K+, B0→χc1π+π-KS0 and B0→χc1π0π-K+ decay modes. Using these decay modes, we observe a difference in the production mechanism of χc2 in comparison to χc1 in B decays. In addition, we report searches for X(3872) and χc1(2P) in the B+→(χc1π+π-)K+ decay mode. The reported results use 772×106 BB-events collected at the (4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider.

AB - We report inclusive and exclusive measurements for χc1 and χc2 production in B decays. We measure B(B→χc1X)=(3.03±0.05(stat)±0.24(syst))×10-3 and B(B→χc2X)=(0.70±0.06(stat)±0.10(syst))×10-3. For the first time, χc2 production in exclusive B decays in the modes B0→χc2π-K+ and B+→χc2π+π-K+ has been observed, along with first evidence for the B+→χc2π+KS0 decay mode. For χc1 production, we report the first observation in the B+→χc1π+π-K+, B0→χc1π+π-KS0 and B0→χc1π0π-K+ decay modes. Using these decay modes, we observe a difference in the production mechanism of χc2 in comparison to χc1 in B decays. In addition, we report searches for X(3872) and χc1(2P) in the B+→(χc1π+π-)K+ decay mode. The reported results use 772×106 BB-events collected at the (4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider.

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UR - http://www.scopus.com/inward/citedby.url?scp=84962338759&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.93.052016

DO - 10.1103/PhysRevD.93.052016

M3 - Article

SN - 2470-0010

VL - 93

JO - Physical Review D

JF - Physical Review D

IS - 5

M1 - 052016

ER -

Inclusive and exclusive measurements of B decays to χc1 and χc2 at Belle

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