Published August 30, 2004
| Version v1
Journal article
New precision measurement of the J/ψ- and ψ'-meson masses
Creators
- Aulchenko, V.M.1
- Balashov, S.A.1
- Baldin, E.M.1
- Barnyakov, M.Yu.1
- Baru, S.E.1
- Bedny, I.V.1
- Beloborodova, O.L.1
- Blinov, A.E.1
- Blinov, V.E.1
- Bogomyagkov, A.V.1
- Bondar, A.E.1
- Bondarev, D.V.1
- Buzykaev, A.R.1
- Eidelman, S.I.1
- Groshev, V.R.1
- Kamaev, S.E.1
- Kiselev, V.A.1
- Kononov, S.A.1
- Kotov, K.A.1
- Kravchenko, E.A.1
- and others
- 1. Budker Institute of Nuclear Physics, 630090 Novosibirsk (Russian Federation)
Description
A new high precision measurement of the J/ψ- and ψ/'-meson masses has been performed at the VEPP-4M collider using the KEDR detector. The resonant depolarization method has been employed for the absolute calibration of the beam energy. The following mass values have been obtained:MJ/ψ = 3096.917 ± 0.010 ± 0.007 MeV, Mψ'= 3686.111 ± 0.025 ± 0.009 MeV. The relative measurement accuracy has reached 4·10-6 for J/ψ and 7·10-6 for ψ', approximately 3 times better than in the previous precise experiments. The description of the experiment and the error analysis can be found in hep-ex/0306050, Phys. Lett. B573 (2003) 63-79
Additional details
Identifiers
- DOI
- 10.1063/1.1799767;
Publishing Information
- Journal Title
- AIP Conference Proceedings
- Journal Volume
- 717
- Journal Issue
- 1
- Journal Page Range
- p. 591
- ISSN
- 0094-243X
- CODEN
- APCPCS
Conference
- Title
- 10. international conference on hadron spectroscopy
- Dates
- 31 Aug - 6 Sep 2003
- Place
- Aschaffenburg (Germany)
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 36070945
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ACCURACY; CALIBRATION; COLLIDING BEAMS; DEPOLARIZATION; ELECTRON-POSITRON INTERACTIONS; ERRORS; J PSI-3097 MESONS; MEV RANGE; MULTIPARTICLE SPECTROMETERS; PARTICLE IDENTIFICATION; PSI-3685 MESONS; RESONANCE PARTICLES; REST MASS; VEPP-4
- Descriptors DEC
- BEAMS; BOSONS; CHARMONIUM; ELEMENTARY PARTICLES; ENERGY RANGE; HADRONS; INTERACTIONS; LEPTON-LEPTON INTERACTIONS; MASS; MEASURING INSTRUMENTS; MESONS; PARTICLE INTERACTIONS; QUARKONIUM; SPECTROMETERS; STORAGE RINGS; VECTOR MESONS
Optional Information
- Notes
- (c) 2004 American Institute of Physics