Document Type
Article
Abstract
Using data corresponding to an integrated luminosity of 1:3 fb-1, we observe a narrow mass state decaying into Υ (1S) + γ, where the Υ(1S) meson is detected by its decay into a pair of oppositely charged muons, and the photon is identified through its conversion into an electron-positron pair. The significance of this observation is 5.6 standard deviations. The mass of the state is centered at 10:551 ± 0:014(stat) ± 0:017(syst) GeV/c2, which is consistent with that of the state recently observed by the ATLAS Collaboration.
DOI
10.1103/PhysRevD.86.031103
Publication Date
1-1-2012
Recommended Citation
Observation of a narrow mass state decaying into Υ(1 S )+ γ in p ̄ p collisions at √ s = 1.96 TeV. V. M. Abazov et al. [D0 Collaboration]. Phys. Rev. D 86 , 031103 (2012).
Original Citation
Observation of a narrow mass state decaying into Υ(1 S )+ γ in p ̄ p collisions at √ s = 1.96 TeV. V. M. Abazov et al. [D0 Collaboration]. Phys. Rev. D 86 , 031103 (2012).
Legacy Department
Department of Physics
Sponsorship
We thank the staffs at Fermilab and collaborating institutions, and acknowledge support from the DOE and NSF (USA); CEA and CNRS/IN2P3 (France); MON, Rosatom and RFBR (Russia); CNPq, FAPERJ, FAPESP and FUNDUNESP (Brazil); DAE and DST (India); Colciencias (Colombia); CONACyT (Mexico); NRF (Korea); FOM (The Netherlands); STFC and the Royal Society (United Kingdom); MSMT and GACR (Czech Republic); BMBF and DFG (Germany); SFI (Ireland); The Swedish Research Council (Sweden); and CAS and CNSF (China).
ISSN
1550-7998
Language
eng
Publisher
American Physical Society
Comments
D0 Collaboration