Observation of the b(2S) Meson in (2S) b(2S), b(2S)' Hadrons and Confirmation of the b(1S) Meson

Sean A Dobbs; Z. Metreveli; Amiran Tomaradze; T. Xiao; Kamal K. Seth

doi:10.1103/PhysRevLett.109.082001

Observation of the b(2S) Meson in (2S) b(2S), b(2S)' Hadrons and Confirmation of the b(1S) Meson

Sean A Dobbs^*, Z. Metreveli, Amiran Tomaradze, T. Xiao, Kamal K. Seth

^*Corresponding author for this work

Physics and Astronomy

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

34 Scopus citations

Abstract

The data for 9.3 million Υ(2S) and 20.9 million Υ(1S) taken with the CLEO III detector have been used to study the radiative population of states identified by their decay into 26 different exclusive hadronic final states. In the Υ(2S) decays, an enhancement is observed at a ∼5σ level at a mass of 9974.6±2.3(stat)±2.1(syst)MeV. It is attributed to η _b(2S) and corresponds to the Υ(2S) hyperfine splitting of 48.7±2.3(stat)±2.1(syst)MeV. In the Υ(1S) decays, the identification of η _b(1S) is confirmed at a ∼3σ level with M[η _b(1S)] in agreement with its known value.

Original language	English (US)
Article number	082001
Journal	Physical review letters
Volume	109
Issue number	8
DOIs	https://doi.org/10.1103/PhysRevLett.109.082001
State	Published - Aug 24 2012

ASJC Scopus subject areas

General Physics and Astronomy

Access to Document

10.1103/PhysRevLett.109.082001

Cite this

@article{9d93b19941304a90a803ce42dcb4cec4,

title = "Observation of the b(2S) Meson in (2S) b(2S), b(2S)' Hadrons and Confirmation of the b(1S) Meson",

abstract = "The data for 9.3 million Υ(2S) and 20.9 million Υ(1S) taken with the CLEO III detector have been used to study the radiative population of states identified by their decay into 26 different exclusive hadronic final states. In the Υ(2S) decays, an enhancement is observed at a ∼5σ level at a mass of 9974.6±2.3(stat)±2.1(syst)MeV. It is attributed to η b(2S) and corresponds to the Υ(2S) hyperfine splitting of 48.7±2.3(stat)±2.1(syst)MeV. In the Υ(1S) decays, the identification of η b(1S) is confirmed at a ∼3σ level with M[η b(1S)] in agreement with its known value.",

author = "Dobbs, {Sean A} and Z. Metreveli and Amiran Tomaradze and T. Xiao and Seth, {Kamal K.}",

year = "2012",

month = aug,

day = "24",

doi = "10.1103/PhysRevLett.109.082001",

language = "English (US)",

volume = "109",

journal = "Physical review letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "8",

}

TY - JOUR

T1 - Observation of the b(2S) Meson in (2S) b(2S), b(2S)' Hadrons and Confirmation of the b(1S) Meson

AU - Dobbs, Sean A

AU - Metreveli, Z.

AU - Tomaradze, Amiran

AU - Xiao, T.

AU - Seth, Kamal K.

PY - 2012/8/24

Y1 - 2012/8/24

N2 - The data for 9.3 million Υ(2S) and 20.9 million Υ(1S) taken with the CLEO III detector have been used to study the radiative population of states identified by their decay into 26 different exclusive hadronic final states. In the Υ(2S) decays, an enhancement is observed at a ∼5σ level at a mass of 9974.6±2.3(stat)±2.1(syst)MeV. It is attributed to η b(2S) and corresponds to the Υ(2S) hyperfine splitting of 48.7±2.3(stat)±2.1(syst)MeV. In the Υ(1S) decays, the identification of η b(1S) is confirmed at a ∼3σ level with M[η b(1S)] in agreement with its known value.

AB - The data for 9.3 million Υ(2S) and 20.9 million Υ(1S) taken with the CLEO III detector have been used to study the radiative population of states identified by their decay into 26 different exclusive hadronic final states. In the Υ(2S) decays, an enhancement is observed at a ∼5σ level at a mass of 9974.6±2.3(stat)±2.1(syst)MeV. It is attributed to η b(2S) and corresponds to the Υ(2S) hyperfine splitting of 48.7±2.3(stat)±2.1(syst)MeV. In the Υ(1S) decays, the identification of η b(1S) is confirmed at a ∼3σ level with M[η b(1S)] in agreement with its known value.

UR - http://www.scopus.com/inward/record.url?scp=84865471813&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84865471813&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.109.082001

DO - 10.1103/PhysRevLett.109.082001

M3 - Article

C2 - 23002740

AN - SCOPUS:84865471813

SN - 0031-9007

VL - 109

JO - Physical review letters

JF - Physical review letters

IS - 8

M1 - 082001

ER -

Observation of the b(2S) Meson in (2S) b(2S), b(2S)' Hadrons and Confirmation of the b(1S) Meson

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this