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First measurement of the Q^2 distribution of X(3915) single-tag two-photon production
- Source :
- INSPIRE-HEP
- Publication Year :
- 2023
- Publisher :
- arXiv, 2023.
-
Abstract
- We report the first measurement of the $Q^2$ distribution of $X(3915)$ produced by single-tag two-photon interactions. The decay mode used is $X(3915) \rightarrow J/\psi\omega$. The covered $Q^2$ region is from 1.5 (GeV/$c$)$^2$ to 10.0 (GeV/$c$)$^2$. We observe $7.9\pm 3.1({\rm stat.})\pm 1.5({\rm syst.})$ events, where we expect $4.1\pm 0.7$ events based on the $Q^2=0$ result from the no-tag two-photon process, extrapolated to higher $Q^2$ region using the $c\bar{c}$ model of Schuler, Berends, and van Gulik. The shape of the distribution is also consistent with this model; we note that statistical uncertainties are large.<br />Comment: 10 pages, 9 figures, 3 tables
Details
- Database :
- OpenAIRE
- Journal :
- INSPIRE-HEP
- Accession number :
- edsair.doi.dedup.....6d1695a992ef6322d29f588b9f5cf69d
- Full Text :
- https://doi.org/10.48550/arxiv.2301.09421