Published November 17, 2017
| Submitted + Published + Supplemental Material
Journal Article
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Measurement of the D*(2010)^+−D^+ Mass Difference
Abstract
We measure the mass difference, Δm_+, between the D*(2010)^+ and the D^+ using the decay chain D*(2010)^+→D^+π^0 with D^+→K−π^+π^+. The data were recorded with the BABAR detector at center-of-mass energies at and near the Υ(4S) resonance, and correspond to an integrated luminosity of approximately 468 fb^(-1). We measure Δm_+=(140 601.0±6.8[stat]±12.9[syst]) keV. We combine this result with a previous BABAR measurement of Δm_0≡m(D*(2010)^+)−m(D^0) to obtain Δm_D=m(D^+)−m(D0)=(4824.9±6.8[stat]±12.9[syst]) keV. These results are compatible with and approximately five times more precise than the Particle Data Group averages.
Additional Information
© 2017 American Physical Society. Received 30 July 2017; revised manuscript received 6 October 2017; published 14 November 2017. We are grateful for the excellent luminosity and machine conditions provided by our PEP-II2 colleagues, and for the substantial dedicated effort from the computing organizations that support BABAR. The collaborating institutions wish to thank SLAC for its support and kind hospitality. This work is supported by DOE and NSF (USA), NSERC (Canada), CEA and CNRS-IN2P3 (France), BMBF and DFG (Germany), INFN (Italy), FOM (Netherlands), NFR (Norway), MES (Russia), MINECO (Spain), STFC (United Kingdom), BSF (USA-Israel). Individuals have received support from the Marie Curie EIF (European Union) and the A. P. Sloan Foundation (USA).Attached Files
Published - PhysRevLett.119.202003.pdf
Submitted - 1707.09328.pdf
Supplemental Material - supp.pdf
Files
1707.09328.pdf
Additional details
- Eprint ID
- 83234
- Resolver ID
- CaltechAUTHORS:20171115-142725757
- Department of Energy (DOE)
- NSF
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- Commissariat à l'énergie atomique (CEA)
- Centre National de la Recherche Scientifique (CNRS)
- Institut National de Physique Nucléaire et de Physique des Particules (IN2P3)
- Bundesministerium für Bildung und Forschung (BMBF)
- Deutsche Forschungsgemeinschaft (DFG)
- Istituto Nazionale di Fisica Nucleare (INFN)
- Stichting voor Fundamenteel Onderzoek der Materie (FOM)
- Research Council of Norway
- Ministry of Education and Science of the Russian Federation
- Ministerio de Economía, Industria y Competitividad (MINECO)
- Science and Technology Facilities Council (STFC)
- Binational Science Foundation (USA-Israel)
- Marie Curie Fellowship
- Alfred P. Sloan Foundation
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2017-11-15Created from EPrint's datestamp field
- Updated
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2021-11-15Created from EPrint's last_modified field