A new measurement of ηb (1S) from Υ (3S) radiative decay at CLEO

Sean Dobbs

doi:10.1063/1.3483457

A new measurement of η_b (1S) from Υ (3S) radiative decay at CLEO

Sean Dobbs^*

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Using CLEO data, we report on the confirmation of the η_b (¹ s₀) ground state of bottomonium in the radiative decay Υ (3s) rarr; γη_b We determine its mass to be M(η_b) = 9391.8 ± 6.6 ± 2.1 MeV, which corresponds to the hyperfine splitting ΔM_hf (1S) = 68.5 ± 6.6 ± 2.0 MeV, and the branching fraction ℬ (Υ(3s) → γη_b= (7.1 ± 1.8 ± 1.1) × 10 ^-4 These results agree with those previously reported by BaBar.

Original language	English (US)
Title of host publication	Hadron 2009 - Proceedings of the XIII International Conference on Hadron Spectroscopy
Pages	408-412
Number of pages	5
DOIs	https://doi.org/10.1063/1.3483457
State	Published - 2010
Externally published	Yes
Event	13th International Conference on Hadron Spectroscopy, Hadron 2009 - Tallahassee, FL, United States Duration: Nov 29 2009 → Dec 4 2009

Publication series

Name	AIP Conference Proceedings
Volume	1257
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Other

Other	13th International Conference on Hadron Spectroscopy, Hadron 2009
Country/Territory	United States
City	Tallahassee, FL
Period	11/29/09 → 12/4/09

Keywords

Bottomonium spectroscopy
Quarkonia
Upsilons

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1063/1.3483457

Cite this

@inproceedings{4ae833d2f73742018dfc0a5436fbec51,

title = "A new measurement of ηb (1S) from Υ (3S) radiative decay at CLEO",

abstract = "Using CLEO data, we report on the confirmation of the ηb (1 s0) ground state of bottomonium in the radiative decay Υ (3s) rarr; γηb We determine its mass to be M(ηb) = 9391.8 ± 6.6 ± 2.1 MeV, which corresponds to the hyperfine splitting ΔMhf (1S) = 68.5 ± 6.6 ± 2.0 MeV, and the branching fraction ℬ (Υ(3s) → γηb= (7.1 ± 1.8 ± 1.1) × 10 -4 These results agree with those previously reported by BaBar.",

keywords = "Bottomonium spectroscopy, Quarkonia, Upsilons",

author = "Sean Dobbs",

year = "2010",

doi = "10.1063/1.3483457",

language = "English (US)",

isbn = "9780735408074",

series = "AIP Conference Proceedings",

pages = "408--412",

booktitle = "Hadron 2009 - Proceedings of the XIII International Conference on Hadron Spectroscopy",

note = "13th International Conference on Hadron Spectroscopy, Hadron 2009 ; Conference date: 29-11-2009 Through 04-12-2009",

}

TY - GEN

T1 - A new measurement of ηb (1S) from Υ (3S) radiative decay at CLEO

AU - Dobbs, Sean

PY - 2010

Y1 - 2010

N2 - Using CLEO data, we report on the confirmation of the ηb (1 s0) ground state of bottomonium in the radiative decay Υ (3s) rarr; γηb We determine its mass to be M(ηb) = 9391.8 ± 6.6 ± 2.1 MeV, which corresponds to the hyperfine splitting ΔMhf (1S) = 68.5 ± 6.6 ± 2.0 MeV, and the branching fraction ℬ (Υ(3s) → γηb= (7.1 ± 1.8 ± 1.1) × 10 -4 These results agree with those previously reported by BaBar.

AB - Using CLEO data, we report on the confirmation of the ηb (1 s0) ground state of bottomonium in the radiative decay Υ (3s) rarr; γηb We determine its mass to be M(ηb) = 9391.8 ± 6.6 ± 2.1 MeV, which corresponds to the hyperfine splitting ΔMhf (1S) = 68.5 ± 6.6 ± 2.0 MeV, and the branching fraction ℬ (Υ(3s) → γηb= (7.1 ± 1.8 ± 1.1) × 10 -4 These results agree with those previously reported by BaBar.

KW - Bottomonium spectroscopy

KW - Quarkonia

KW - Upsilons

UR - http://www.scopus.com/inward/record.url?scp=77956681315&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77956681315&partnerID=8YFLogxK

U2 - 10.1063/1.3483457

DO - 10.1063/1.3483457

M3 - Conference contribution

AN - SCOPUS:77956681315

SN - 9780735408074

T3 - AIP Conference Proceedings

SP - 408

EP - 412

BT - Hadron 2009 - Proceedings of the XIII International Conference on Hadron Spectroscopy

T2 - 13th International Conference on Hadron Spectroscopy, Hadron 2009

Y2 - 29 November 2009 through 4 December 2009

ER -