Observation of I (2S) →γηb (1S) Decay

Standard

Observation of I (2S) →γηb (1S) Decay. / The BELLE collaboration.

In: Physical Review Letters, Vol. 121, No. 23, 232001, 03.12.2018.

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

Harvard

The BELLE collaboration 2018, 'Observation of I (2S) →γηb (1S) Decay', Physical Review Letters, vol. 121, no. 23, 232001. https://doi.org/10.1103/PhysRevLett.121.232001

APA

The BELLE collaboration (2018). Observation of I (2S) →γηb (1S) Decay. Physical Review Letters, 121(23), [232001]. https://doi.org/10.1103/PhysRevLett.121.232001

Vancouver

The BELLE collaboration. Observation of I (2S) →γηb (1S) Decay. Physical Review Letters. 2018 Dec 3;121(23):232001. doi: 10.1103/PhysRevLett.121.232001

Author

The BELLE collaboration. / Observation of I (2S) →γηb (1S) Decay. In: Physical Review Letters. 2018 ; Vol. 121, No. 23.

BibTeX

@article{f34ed3cbc8d54817bba55f44ee477171,

title = "Observation of I (2S) →γηb (1S) Decay",

abstract = "We report the observation of I(2S)→γηb(1S) decay based on an analysis of the inclusive photon spectrum of 24.7 fb-1 of e+e- collisions at the I(2S) center-of-mass energy collected with the Belle detector at the KEKB asymmetric-energy e+e- collider. We measure a branching fraction of B[I(2S)→γηb(1S)]=(6.1-0.7-0.6+0.6+0.9)×10-4 and derive an ηb(1S) mass of 9394.8-3.1-2.7+2.7+4.5 MeV/c2, where the uncertainties are statistical and systematic, respectively. The significance of our measurement is greater than 7 standard deviations, constituting the first observation of this decay mode.",

keywords = "J/PSI",

author = "{The BELLE collaboration} and Fulsom, {B. G.} and Pedlar, {T. K.} and I. Adachi and H. Aihara and {Al Said}, S. and Asner, {D. M.} and H. Atmacan and V. Aulchenko and T. Aushev and R. Ayad and V. Babu and I. Badhrees and Bakich, {A. M.} and V. Bansal and P. Behera and C. Bele{\~n}o and M. Berger and V. Bhardwaj and B. Bhuyan and T. Bilka and J. Biswal and A. Bondar and G. Bonvicini and A. Bozek and M. Bra{\v c}ko and Browder, {T. E.} and L. Cao and D. {\v C}ervenkov and V. Chekelian and A. Chen and Cheon, {B. G.} and K. Chilikin and K. Cho and Choi, {S. K.} and Y. Choi and S. Choudhury and D. Cinabro and S. Eidelman and D. Epifanov and N. Gabyshev and A. Garmash and P. Krokovny and A. Kuzmin and D. Matvienko and V. Shebalin and B. Shwartz and A. Vinokurova and V. Vorobyev and V. Zhilich and V. Zhulanov",

note = "Publisher Copyright: {\textcopyright} 2018 authors. Published by the American Physical Society.",

year = "2018",

month = dec,

day = "3",

doi = "10.1103/PhysRevLett.121.232001",

language = "English",

volume = "121",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "23",

}

RIS

TY - JOUR

T1 - Observation of I (2S) →γηb (1S) Decay

AU - The BELLE collaboration

AU - Fulsom, B. G.

AU - Pedlar, T. K.

AU - Adachi, I.

AU - Aihara, H.

AU - Al Said, S.

AU - Asner, D. M.

AU - Atmacan, H.

AU - Aulchenko, V.

AU - Aushev, T.

AU - Ayad, R.

AU - Babu, V.

AU - Badhrees, I.

AU - Bakich, A. M.

AU - Bansal, V.

AU - Behera, P.

AU - Beleño, C.

AU - Berger, M.

AU - Bhardwaj, V.

AU - Bhuyan, B.

AU - Bilka, T.

AU - Biswal, J.

AU - Bondar, A.

AU - Bonvicini, G.

AU - Bozek, A.

AU - Bračko, M.

AU - Browder, T. E.

AU - Cao, L.

AU - Červenkov, D.

AU - Chekelian, V.

AU - Chen, A.

AU - Cheon, B. G.

AU - Chilikin, K.

AU - Cho, K.

AU - Choi, S. K.

AU - Choi, Y.

AU - Choudhury, S.

AU - Cinabro, D.

AU - Eidelman, S.

AU - Epifanov, D.

AU - Gabyshev, N.

AU - Garmash, A.

AU - Krokovny, P.

AU - Kuzmin, A.

AU - Matvienko, D.

AU - Shebalin, V.

AU - Shwartz, B.

AU - Vinokurova, A.

AU - Vorobyev, V.

AU - Zhilich, V.

AU - Zhulanov, V.

PY - 2018/12/3

Y1 - 2018/12/3

N2 - We report the observation of I(2S)→γηb(1S) decay based on an analysis of the inclusive photon spectrum of 24.7 fb-1 of e+e- collisions at the I(2S) center-of-mass energy collected with the Belle detector at the KEKB asymmetric-energy e+e- collider. We measure a branching fraction of B[I(2S)→γηb(1S)]=(6.1-0.7-0.6+0.6+0.9)×10-4 and derive an ηb(1S) mass of 9394.8-3.1-2.7+2.7+4.5 MeV/c2, where the uncertainties are statistical and systematic, respectively. The significance of our measurement is greater than 7 standard deviations, constituting the first observation of this decay mode.

AB - We report the observation of I(2S)→γηb(1S) decay based on an analysis of the inclusive photon spectrum of 24.7 fb-1 of e+e- collisions at the I(2S) center-of-mass energy collected with the Belle detector at the KEKB asymmetric-energy e+e- collider. We measure a branching fraction of B[I(2S)→γηb(1S)]=(6.1-0.7-0.6+0.6+0.9)×10-4 and derive an ηb(1S) mass of 9394.8-3.1-2.7+2.7+4.5 MeV/c2, where the uncertainties are statistical and systematic, respectively. The significance of our measurement is greater than 7 standard deviations, constituting the first observation of this decay mode.

KW - J/PSI

UR - http://www.scopus.com/inward/record.url?scp=85058089146&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.121.232001

DO - 10.1103/PhysRevLett.121.232001

M3 - Article

C2 - 30576207

AN - SCOPUS:85058089146

VL - 121

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 23

M1 - 232001

ER -

ID: 17753160