FIZIKA B 13 (2004)  2, 507-512

MODIFICATIONS OF DELTA IN NUCLEAR MEDIUM

DAMIR BOSNAR and MIHAEL MAKEK
for the A1 collaboration at MAMI

Department of Physics, Faculty of Science, P.O. Box 331, HR-10 002 Zagreb, Croatia

Received 10 December 2003;  Accepted 30 August 2004
Online 14 November 2004

In the experiments at the Mainz Microtron, MAMI, D⁰ particles in the electron scattering reactions ¹²C (e,e˘D⁰)¹¹C have been produced in nuclear medium. The three high-resolution magnetic spectrometers of the A1 collaboration have been used in triple coincidence measurements ¹²C(e,e˘pp^-)¹¹C. Indications for substantial changes of delta properties in the nuclear medium have been obtained. Because of low statistics, these results cannot yet be taken as conclusive. A new setup for measurements at MAMI with silicon detectors for proton detection, which subtend larger solid angle, is described.

PACS numbers: 14.20.-c, 25.30.Dh,Fj
UDC 539.12

Keywords: D⁰ particles in nuclear medium, electron scattering reaction

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