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Diffractive Psi(2s) Photoproduction at HERA |
| Reference |
B. Mellado, talk presented at ICHEP 2000, July 2000 |
| Document |
Conference paper
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| Figures |
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| Contact |
Dirk Schmidt, Andreas Meyer |
| Abstract |
The elastic photoproduction of $\psi(2S)$ mesons is analyzed using data collected between 1996 and 1999 with the H1 detector at the HERA collider. The data sample corresponds to an integrated luminosity of about $\sim38\:\mbox{pb}^{-1}$. The $\psi(2S)$ mesons are identified through their leptonic decay. The $t$-dependence of the elastic $\psi(2S)$ production differential cross section is compared to that of $J/\psi$ production, and the slope, parameterized as $e^{-b|t|}$, is measured to be $b=4.5\pm 1.2^{~~+1.4}_{~~-0.7}~ \GeV^{-2}$. |
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