Observation of B → J/ψK1(1270)

Belle Collaboration

doi:10.1103/PhysRevLett.87.161601

Observation of B → J/ψK₁(1270)

Belle Collaboration

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

2 Scopus citations

Abstract

We report the first observation of the exclusive decay process B → J/ψK₁(1270) using a sample of 1102M BB® meson pairs collected in the Belle detector at the KEKB asymmetric energy e⁺e⁻ collider. We measure branching fractions of B[B⁰ → J/ψK⁰₁(1270)] =(1.30 ± 0.34 ± 0.32) × 10^→3 and B[B⁺ J/ψK⁺₁(1270)] = (1.80 ± 0.34 ± 0.39) × 10⁻³, where the first error is statistical and the second is systematic. These modes constitute approximately 15% of the total number of B → J/ψX decays. No evidence is seen for B → J/ψK₁(1400) and we set an upper limit for this branching fraction.

Original language	English (US)
Journal	Physical review letters
Volume	87
Issue number	16
DOIs	https://doi.org/10.1103/PhysRevLett.87.161601
State	Published - Sep 27 2001

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

Access to Document

10.1103/PhysRevLett.87.161601

Cite this

@article{cfeae33fba514ff0a7a771e887761ffd,

title = "Observation of B → J/ψK1(1270)",

abstract = "We report the first observation of the exclusive decay process B → J/ψK1(1270) using a sample of 1102M BB{\textregistered} meson pairs collected in the Belle detector at the KEKB asymmetric energy e+e− collider. We measure branching fractions of B[B0 → J/ψK01(1270)] =(1.30 ± 0.34 ± 0.32) × 10→3 and B[B+ J/ψK+1(1270)] = (1.80 ± 0.34 ± 0.39) × 10−3, where the first error is statistical and the second is systematic. These modes constitute approximately 15\% of the total number of B → J/ψX decays. No evidence is seen for B → J/ψK1(1400) and we set an upper limit for this branching fraction.",

author = "\{Belle Collaboration\} and K. Abe and K. Abe and I. Adachi and Ahn, \{Byoung Sup\} and H. Aihara and Y. Asano and T. Aso and V. Aulchenko and T. Aushev and Bakich, \{A. M.\} and E. Banas and W. Bartel and S. Behari and Behera, \{P. K.\} and D. Beiline and A. Bondar and A. Bozek and Browder, \{T. E.\} and Casey, \{B. C.K.\} and P. Chang and Y. Chao and Cheon, \{B. G.\} and Choi, \{S. K.\} and Y. Choi and J. Dragic and A. Drutskoy and S. Eidelman and Y. Enari and F. Fang and H. Fujii and C. Fukunaga and M. Fukushima and A. Garmash and A. Gordon and K. Gotow and R. Guo and J. Haba and H. Hamasaki and K. Hanagaki and K. Hara and T. Hara and Hastings, \{N. C.\} and H. Hayashii and M. Hazumi and Heenan, \{E. M.\} and Y. Higasino and I. Higuchi and T. Higuchi and H. Hirano and D. Marlow",

year = "2001",

month = sep,

day = "27",

doi = "10.1103/PhysRevLett.87.161601",

language = "English (US)",

volume = "87",

journal = "Physical review letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "16",

}

TY - JOUR

T1 - Observation of B → J/ψK1(1270)

AU - Belle Collaboration

AU - Abe, K.

AU - Adachi, I.

AU - Ahn, Byoung Sup

AU - Aihara, H.

AU - Asano, Y.

AU - Aso, T.

AU - Aulchenko, V.

AU - Aushev, T.

AU - Bakich, A. M.

AU - Banas, E.

AU - Bartel, W.

AU - Behari, S.

AU - Behera, P. K.

AU - Beiline, D.

AU - Bondar, A.

AU - Bozek, A.

AU - Browder, T. E.

AU - Casey, B. C.K.

AU - Chang, P.

AU - Chao, Y.

AU - Cheon, B. G.

AU - Choi, S. K.

AU - Choi, Y.

AU - Dragic, J.

AU - Drutskoy, A.

AU - Eidelman, S.

AU - Enari, Y.

AU - Fang, F.

AU - Fujii, H.

AU - Fukunaga, C.

AU - Fukushima, M.

AU - Garmash, A.

AU - Gordon, A.

AU - Gotow, K.

AU - Guo, R.

AU - Haba, J.

AU - Hamasaki, H.

AU - Hanagaki, K.

AU - Hara, K.

AU - Hara, T.

AU - Hastings, N. C.

AU - Hayashii, H.

AU - Hazumi, M.

AU - Heenan, E. M.

AU - Higasino, Y.

AU - Higuchi, I.

AU - Higuchi, T.

AU - Hirano, H.

AU - Marlow, D.

PY - 2001/9/27

Y1 - 2001/9/27

N2 - We report the first observation of the exclusive decay process B → J/ψK1(1270) using a sample of 1102M BB® meson pairs collected in the Belle detector at the KEKB asymmetric energy e+e− collider. We measure branching fractions of B[B0 → J/ψK01(1270)] =(1.30 ± 0.34 ± 0.32) × 10→3 and B[B+ J/ψK+1(1270)] = (1.80 ± 0.34 ± 0.39) × 10−3, where the first error is statistical and the second is systematic. These modes constitute approximately 15% of the total number of B → J/ψX decays. No evidence is seen for B → J/ψK1(1400) and we set an upper limit for this branching fraction.

AB - We report the first observation of the exclusive decay process B → J/ψK1(1270) using a sample of 1102M BB® meson pairs collected in the Belle detector at the KEKB asymmetric energy e+e− collider. We measure branching fractions of B[B0 → J/ψK01(1270)] =(1.30 ± 0.34 ± 0.32) × 10→3 and B[B+ J/ψK+1(1270)] = (1.80 ± 0.34 ± 0.39) × 10−3, where the first error is statistical and the second is systematic. These modes constitute approximately 15% of the total number of B → J/ψX decays. No evidence is seen for B → J/ψK1(1400) and we set an upper limit for this branching fraction.

UR - https://www.scopus.com/pages/publications/85038314631

UR - https://www.scopus.com/pages/publications/85038314631#tab=citedBy

U2 - 10.1103/PhysRevLett.87.161601

DO - 10.1103/PhysRevLett.87.161601

M3 - Article

C2 - 11690197

AN - SCOPUS:85038314631

SN - 0031-9007

VL - 87

JO - Physical review letters

JF - Physical review letters

IS - 16

ER -

Observation of B → J/ψK₁(1270)

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this