φ-meson production and the in-medium φ-width in proton-nucleus collisions | Zendy

M. Hartmann | Zendy; Yu.T. Kiselev | Zendy; É. Ya. Paryev | Zendy; A. Polyanskiy | Zendy; H. Schadet | Zendy; C. Wilkin | Zendy; J. Nieves | Zendy; E. Oset | Zendy; M. J. Vicente Vacas | Zendy

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φ-meson production and the in-medium φ-width in proton-nucleus collisions

Author(s) -

M. Hartmann,

Yu.T. Kiselev,

É. Ya. Paryev,

A. Polyanskiy,

H. Schadet,

C. Wilkin,

J. Nieves,

E. Oset,

M. J. Vicente Vacas

Publication year - 2010

Publication title -

aip conference proceedings

Language(s) - English

Resource type - Conference proceedings

eISSN - 1551-7616

pISSN - 0094-243X

DOI - 10.1063/1.3542003

Subject(s) - meson , physics , nuclear physics , spectrometer , proton , synchrotron , production (economics) , cross section (physics) , atomic physics , optics , quantum mechanics , economics , macroeconomics

The production of φ-mesons in collisions of 2.83 GeV protons with C, Cu, Al, and Au targets has been measured with the ANKE magnetic spectrometer at the Cooler Synchrotron COSY. The φ-mesons were detected at small angles via their K+K− decay. The measured target mass dependence of the production cross section can be related to the in-medium φ width. First comparisons with model calculations suggest a significant broadening of the φ-width relative to its vacuum value of 4.3 MeV/c2.

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