Measurement of ep→e′pπ+π− and Baryon Resonance Analysis

M. Ripani; Angela Biselli

doi:10.1103/PhysRevLett.91.022002

Measurement of ep→e′pπ+π− and Baryon Resonance Analysis

M. Ripani, Angela Biselli

Fairfield University

Research output: Contribution to journal › Article › peer-review

Abstract

The cross section for the reaction ep ! e′p_+_− was measured in the resonance region for 1.4

The data show resonant structures not visible in previous experiments. The comparison of our data to a phenomenological prediction using available information on N∗ and _ states shows an evident

discrepancy. A better description of the data is obtained either by a sizeable change of the properties of the P13(1720) resonance or by introducing a new baryon state, not reported in published analyses.

Original language	American English
Journal	Physical Review Letters
Volume	91
DOIs	https://doi.org/10.1103/PhysRevLett.91.022002
State	Published - Jan 1 2003

Disciplines

Physical Sciences and Mathematics
Physics

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title = "Measurement of ep→e′pπ+π− and Baryon Resonance Analysis",

abstract = " The cross section for the reaction ep ! e′p\_+\_− was measured in the resonance region for 1.4 The data show resonant structures not visible in previous experiments. The comparison of our data to a phenomenological prediction using available information on N∗ and \_ states shows an evident discrepancy. A better description of the data is obtained either by a sizeable change of the properties of the P13(1720) resonance or by introducing a new baryon state, not reported in published analyses.",

author = "M. Ripani and Angela Biselli",

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AU - Ripani, M.

AU - Biselli, Angela

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N2 - The cross section for the reaction ep ! e′p_+_− was measured in the resonance region for 1.4 The data show resonant structures not visible in previous experiments. The comparison of our data to a phenomenological prediction using available information on N∗ and _ states shows an evident discrepancy. A better description of the data is obtained either by a sizeable change of the properties of the P13(1720) resonance or by introducing a new baryon state, not reported in published analyses.

AB - The cross section for the reaction ep ! e′p_+_− was measured in the resonance region for 1.4 The data show resonant structures not visible in previous experiments. The comparison of our data to a phenomenological prediction using available information on N∗ and _ states shows an evident discrepancy. A better description of the data is obtained either by a sizeable change of the properties of the P13(1720) resonance or by introducing a new baryon state, not reported in published analyses.

UR - https://digitalcommons.fairfield.edu/physics-facultypubs/4

U2 - 10.1103/PhysRevLett.91.022002

DO - 10.1103/PhysRevLett.91.022002

M3 - Article

VL - 91

JO - Physical Review Letters

JF - Physical Review Letters

ER -

Measurement of ep→e′pπ+π− and Baryon Resonance Analysis

Abstract

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