Absorption of the ω and ϕ Mesons in Nuclei

M. H. Wood; Angela Biselli

doi:10.1103/PhysRevLett.105.112301

Absorption of the ω and ϕ Mesons in Nuclei

M. H. Wood, Angela Biselli

Fairfield University

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

Abstract

<p> Because of their long lifetimes, the ω and ϕ mesons are the ideal candidates for the study of possible modifications of the in-medium meson-nucleon interaction through their absorption inside the nucleus. During the E01-112 experiment at the Thomas Jefferson National Accelerator Facility, the mesons were photoproduced from 2H, C, Ti, Fe, and Pb targets. This Letter reports the first measurement of the ratio of nuclear transparencies for the e+e− channel. The ratios indicate larger in-medium widths compared with what have been reported in other reaction channels. The absorption of the ω meson is stronger than that reported by the CBELSA-TAPS experiment and cannot be explained by recent theoretical models.</p>

Original language	American English
Journal	Physical Review Letters
Volume	105
DOIs	https://doi.org/10.1103/PhysRevLett.105.112301
State	Published - Jan 1 2010

Disciplines

Physical Sciences and Mathematics
Physics

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Absorption of the and Mesons in NucleiFinal published version, 307 KBLicense: CC BY

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title = "Absorption of the ω and ϕ Mesons in Nuclei",

abstract = " Because of their long lifetimes, the \ω and \ϕ mesons are the ideal candidates for the study of possible modifications of the in-medium meson-nucleon interaction through their absorption inside the nucleus. During the E01-112 experiment at the Thomas Jefferson National Accelerator Facility, the mesons were photoproduced from 2H, C, Ti, Fe, and Pb targets. This Letter reports the first measurement of the ratio of nuclear transparencies for the e+e\− channel. The ratios indicate larger in-medium widths compared with what have been reported in other reaction channels. The absorption of the \ω meson is stronger than that reported by the CBELSA-TAPS experiment and cannot be explained by recent theoretical models.",

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AU - Biselli, Angela

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AB - Because of their long lifetimes, the ω and ϕ mesons are the ideal candidates for the study of possible modifications of the in-medium meson-nucleon interaction through their absorption inside the nucleus. During the E01-112 experiment at the Thomas Jefferson National Accelerator Facility, the mesons were photoproduced from 2H, C, Ti, Fe, and Pb targets. This Letter reports the first measurement of the ratio of nuclear transparencies for the e+e− channel. The ratios indicate larger in-medium widths compared with what have been reported in other reaction channels. The absorption of the ω meson is stronger than that reported by the CBELSA-TAPS experiment and cannot be explained by recent theoretical models.

UR - https://digitalcommons.fairfield.edu/physics-facultypubs/41

U2 - 10.1103/PhysRevLett.105.112301

DO - 10.1103/PhysRevLett.105.112301

M3 - Article

VL - 105

JO - Physical Review Letters

JF - Physical Review Letters

ER -

Absorption of the ω and ϕ Mesons in Nuclei

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