Welcome to the new version of CaltechAUTHORS. Login is currently restricted to library staff. If you notice any issues, please email coda@library.caltech.edu
Published November 17, 2017 | Submitted + Published + Supplemental Material
Journal Article Open

Measurement of the D*(2010)^+−D^+ Mass Difference


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 (1.2 MB)
Name Size Download all
706.1 kB Preview Download
185.1 kB Preview Download
309.8 kB Preview Download

Additional details

August 19, 2023
October 17, 2023