| Issue |
EPJ Web of Conferences
Volume 37, 2012
MESON 2012 – 12th International Workshop on Production, Properties and Interaction of MESONS
|
|
|---|---|---|
| Article Number | 03004 | |
| Number of page(s) | 4 | |
| Section | Physics of eta - parallel talks | |
| DOI | https://doi.org/10.1051/epjconf/20123703004 | |
| Published online | 06 December 2012 | |
https://doi.org/10.1051/epjconf/20123703004
Precision measurement of the η-meson mass at COSY-ANKE
Institut für Kernphysik, Westfälische-Wilhelms Universtät Münster, D-48149 Münster
a e-mail: paul.goslawski@uni-muenster.de
A value for the mass of the η meson has been determined at the COSY-ANKE facility through the measurement of a set of deuteron laboratory beam momenta and associated 3He center-of-mass momenta in the dp → 3He X reaction. The η meson was identified by the missing-mass peak and the production threshold determined. The value obtained, mη = (547.873±0.005stat±0.027syst) MeV/c2, is consistent and competitive with other recent measurements, in which the meson was detected through its decay products.
© Owned by the authors, published by EDP Sciences, 2012
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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