- Abstract:
-
We present an analysis of the mass of the X(3872) reconstructed via its decay to J/ψπ+π- using 2.4fb-1 of integrated luminosity from pp̄ collisions at s=1.96TeV, collected with the CDF II detector at the Fermilab Tevatron. The possible existence of two nearby mass states is investigated. Within the limits of our experimental resolution the data are consistent with a single state, and having no evidence for two states we set upper limits on the mass difference between two hypothetical states f...
Expand abstract - Publisher copy:
- 10.1103/PhysRevLett.103.152001
-
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- Journal:
- Physical Review Letters
- Volume:
- 103
- Issue:
- 15
- Publication date:
- 2009-10-05
- DOI:
- EISSN:
-
1079-7114
- ISSN:
-
0031-9007
- URN:
-
uuid:45bdd638-e460-4708-a67f-a7fe283b6528
- Source identifiers:
-
106093
- Local pid:
- pubs:106093
- Language:
- English
- Copyright date:
- 2009
Journal article
Precision measurement of the X(3872) mass in J/ψπ+π- decays
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