Search for B decays to final states with the ηc meson

The Belle Collaboration

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Abstract: We report a search for B decays to selected final states with the ηc meson: B± → K±ηcπ+π, B± → K±ηcω, B± → K±ηcη and B± → K±ηcπ0. The analysis is based on 772 × 106BB¯$$ B\overline{B} $$ pairs collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e collider. We set 90% confidence level upper limits on the branching fractions of the studied B decay modes, independent of intermediate resonances, in the range (0.6–5.3) × 10−4. We also search for molecular-state candidates in the (Formula presented.) and (Formula presented.) combinations, neutral partners of the Z(3900)± and Z(4020)±, and a poorly understood state X(3915) as possible intermediate states in the decay chain, and set 90% confidence level upper limits on the product of branching fractions to the mentioned intermediate states and decay branching fractions of these states in the range (0.6–6.9) × 10−5.

Original languageEnglish
Article number132
JournalJournal of High Energy Physics
Volume2015
Issue number6
DOIs
Publication statusPublished - 2015 Jun 29

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mesons
decay
confidence
detectors
products
energy

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

The Belle Collaboration. / Search for B decays to final states with the ηc meson. In: Journal of High Energy Physics. 2015 ; Vol. 2015, No. 6.
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abstract = "Abstract: We report a search for B decays to selected final states with the ηc meson: B± → K±ηcπ+π−, B± → K±ηcω, B± → K±ηcη and B± → K±ηcπ0. The analysis is based on 772 × 106BB¯$$ B\overline{B} $$ pairs collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e− collider. We set 90{\%} confidence level upper limits on the branching fractions of the studied B decay modes, independent of intermediate resonances, in the range (0.6–5.3) × 10−4. We also search for molecular-state candidates in the (Formula presented.) and (Formula presented.) combinations, neutral partners of the Z(3900)± and Z(4020)±, and a poorly understood state X(3915) as possible intermediate states in the decay chain, and set 90{\%} confidence level upper limits on the product of branching fractions to the mentioned intermediate states and decay branching fractions of these states in the range (0.6–6.9) × 10−5.",
author = "{The Belle Collaboration} and A. Vinokurova and A. Kuzmin and S. Eidelman and A. Abdesselam and I. Adachi and H. Aihara and K. Arinstein and Asner, {D. M.} and T. Aushev and R. Ayad and Bakich, {A. M.} and V. Bansal and V. Bhardwaj and B. Bhuyan and A. Bobrov and A. Bondar and A. Bozek and M. Bračko and Browder, {T. E.} and V. Chekelian and Cheon, {B. G.} and K. Chilikin and R. Chistov and K. Cho and Choi, {S. K.} and Y. Choi and D. Cinabro and J. Dingfelder and Z. Doležal and Z. Dr{\'a}sal and A. Drutskoy and D. Dutta and D. Epifanov and H. Farhat and Fast, {J. E.} and T. Ferber and V. Gaur and N. Gabyshev and A. Garmash and R. Gillard and Goh, {Y. M.} and B. Golob and J. Haba and K. Hayasaka and H. Hayashii and He, {X. H.} and Hou, {W. S.} and K. Inami and A. Ishikawa and Youngjoon Kwon",
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Search for B decays to final states with the ηc meson. / The Belle Collaboration.

In: Journal of High Energy Physics, Vol. 2015, No. 6, 132, 29.06.2015.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Search for B decays to final states with the ηc meson

AU - The Belle Collaboration

AU - Vinokurova, A.

AU - Kuzmin, A.

AU - Eidelman, S.

AU - Abdesselam, A.

AU - Adachi, I.

AU - Aihara, H.

AU - Arinstein, K.

AU - Asner, D. M.

AU - Aushev, T.

AU - Ayad, R.

AU - Bakich, A. M.

AU - Bansal, V.

AU - Bhardwaj, V.

AU - Bhuyan, B.

AU - Bobrov, A.

AU - Bondar, A.

AU - Bozek, A.

AU - Bračko, M.

AU - Browder, T. E.

AU - Chekelian, V.

AU - Cheon, B. G.

AU - Chilikin, K.

AU - Chistov, R.

AU - Cho, K.

AU - Choi, S. K.

AU - Choi, Y.

AU - Cinabro, D.

AU - Dingfelder, J.

AU - Doležal, Z.

AU - Drásal, Z.

AU - Drutskoy, A.

AU - Dutta, D.

AU - Epifanov, D.

AU - Farhat, H.

AU - Fast, J. E.

AU - Ferber, T.

AU - Gaur, V.

AU - Gabyshev, N.

AU - Garmash, A.

AU - Gillard, R.

AU - Goh, Y. M.

AU - Golob, B.

AU - Haba, J.

AU - Hayasaka, K.

AU - Hayashii, H.

AU - He, X. H.

AU - Hou, W. S.

AU - Inami, K.

AU - Ishikawa, A.

AU - Kwon, Youngjoon

PY - 2015/6/29

Y1 - 2015/6/29

N2 - Abstract: We report a search for B decays to selected final states with the ηc meson: B± → K±ηcπ+π−, B± → K±ηcω, B± → K±ηcη and B± → K±ηcπ0. The analysis is based on 772 × 106BB¯$$ B\overline{B} $$ pairs collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e− collider. We set 90% confidence level upper limits on the branching fractions of the studied B decay modes, independent of intermediate resonances, in the range (0.6–5.3) × 10−4. We also search for molecular-state candidates in the (Formula presented.) and (Formula presented.) combinations, neutral partners of the Z(3900)± and Z(4020)±, and a poorly understood state X(3915) as possible intermediate states in the decay chain, and set 90% confidence level upper limits on the product of branching fractions to the mentioned intermediate states and decay branching fractions of these states in the range (0.6–6.9) × 10−5.

AB - Abstract: We report a search for B decays to selected final states with the ηc meson: B± → K±ηcπ+π−, B± → K±ηcω, B± → K±ηcη and B± → K±ηcπ0. The analysis is based on 772 × 106BB¯$$ B\overline{B} $$ pairs collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e− collider. We set 90% confidence level upper limits on the branching fractions of the studied B decay modes, independent of intermediate resonances, in the range (0.6–5.3) × 10−4. We also search for molecular-state candidates in the (Formula presented.) and (Formula presented.) combinations, neutral partners of the Z(3900)± and Z(4020)±, and a poorly understood state X(3915) as possible intermediate states in the decay chain, and set 90% confidence level upper limits on the product of branching fractions to the mentioned intermediate states and decay branching fractions of these states in the range (0.6–6.9) × 10−5.

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U2 - 10.1007/JHEP06(2015)132

DO - 10.1007/JHEP06(2015)132

M3 - Article

VL - 2015

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

SN - 1126-6708

IS - 6

M1 - 132

ER -