In-medium modification of the Delta(1232) resonance at SIS energies
Pelte, D.
الأصل · EN
From the pion production rates npi / Apart and the pion charge ratios Rpi = npi- / npi+ and Spi = npi⁰ / (npi- + npi+), measured in p + A and A + A reactions, it is concluded that the mass of the Delta(1232) resonance is reduced in dense nuclear matter. This conclusion is supported by the Delta(1232) mass distribution extracted from correlated (p,pi⁺⁻) pairs and the pi⁺⁻ transverse momentum distributions.
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