## Abstract

We studied the exclusive reaction [Formula Presented] using the [Formula Presented] decay mode. The data were collected using a 4.2 GeV incident electron beam and the CEBAF Large Acceptance Spectrometer (CLAS) at the Thomas Jefferson National Accelerator Facility. Our experiment covers the range in [Formula Presented] from 0.7 to 2.2 [Formula Presented] and W from 2.0 to 2.6 GeV. Taken together with all previous data, we find a consistent picture of [Formula Presented] production on the proton. Our measurement shows the expected decrease of the t slope with the vector-meson formation time [Formula Presented] below 2 fm. At [Formula Presented] fm, we measure [Formula Presented] The cross section dependence on W as [Formula Presented] at [Formula Presented] was determined by comparison with [Formula Presented] production at HERA after correcting for threshold effects. This is the same dependence as observed in photoproduction.

Original language | English (US) |
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Pages (from-to) | 11 |

Number of pages | 1 |

Journal | Physical Review C - Nuclear Physics |

Volume | 63 |

Issue number | 6 |

DOIs | |

State | Published - 2001 |

## ASJC Scopus subject areas

- Nuclear and High Energy Physics