Search for Medium Modifications of the ρ Meson

R. Nasseripour; Angela Biselli

doi:10.1103/PhysRevLett.99.262302

Search for Medium Modifications of the ρ Meson

R. Nasseripour, Angela Biselli

Fairfield University

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

Abstract

<p> The photoproduction of vector mesons on various nuclei has been studied using the CLAS detector at Jefferson Laboratory. The vector mesons, ρ, ω, and ϕ, are observed via their decay to e+e−, in order to reduce the effects of final-state interactions in the nucleus. Of particular interest are possible in-medium effects on the properties of the ρ meson. The ρ mass spectrum is extracted from the data on various nuclei,2 H, C, Fe, and Ti. We observe no significant mass shift and some broadening consistent with expected collisional broadening for the ρ meson.</p>

Original language	American English
Journal	Physical Review Letters
Volume	99
DOIs	https://doi.org/10.1103/PhysRevLett.99.262302
State	Published - Jan 1 2007

Disciplines

Physical Sciences and Mathematics
Physics

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title = "Search for Medium Modifications of the ρ Meson",

abstract = " The photoproduction of vector mesons on various nuclei has been studied using the CLAS detector at Jefferson Laboratory. The vector mesons, \ρ, \ω, and \ϕ, are observed via their decay to e+e\−, in order to reduce the effects of final-state interactions in the nucleus. Of particular interest are possible in-medium effects on the properties of the \ρ meson. The \ρ mass spectrum is extracted from the data on various nuclei,2 H, C, Fe, and Ti. We observe no significant mass shift and some broadening consistent with expected collisional broadening for the \ρ meson.",

author = "R. Nasseripour and Angela Biselli",

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doi = "10.1103/PhysRevLett.99.262302",

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AU - Biselli, Angela

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N2 - The photoproduction of vector mesons on various nuclei has been studied using the CLAS detector at Jefferson Laboratory. The vector mesons, ρ, ω, and ϕ, are observed via their decay to e+e−, in order to reduce the effects of final-state interactions in the nucleus. Of particular interest are possible in-medium effects on the properties of the ρ meson. The ρ mass spectrum is extracted from the data on various nuclei,2 H, C, Fe, and Ti. We observe no significant mass shift and some broadening consistent with expected collisional broadening for the ρ meson.

AB - The photoproduction of vector mesons on various nuclei has been studied using the CLAS detector at Jefferson Laboratory. The vector mesons, ρ, ω, and ϕ, are observed via their decay to e+e−, in order to reduce the effects of final-state interactions in the nucleus. Of particular interest are possible in-medium effects on the properties of the ρ meson. The ρ mass spectrum is extracted from the data on various nuclei,2 H, C, Fe, and Ti. We observe no significant mass shift and some broadening consistent with expected collisional broadening for the ρ meson.

UR - https://digitalcommons.fairfield.edu/physics-facultypubs/65

U2 - 10.1103/PhysRevLett.99.262302

DO - 10.1103/PhysRevLett.99.262302

M3 - Article

VL - 99

JO - Physical Review Letters

JF - Physical Review Letters

ER -

Search for Medium Modifications of the ρ Meson

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