Dibaryons – a new state of matter?
1 Physikalisches Institut, Eberhard–Karls–Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany
2 Kepler Center for Astro and Particle Physics, University of Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany
3 Department of Physics, Tomsk State University, 36 Lenina Avenue, 634050 Tomsk, Russia
a e-mail: firstname.lastname@example.org
Published online: 26 November 2014
New results in the field of dibaryons are discussed concentrating on the d∗(2380) resonance with I(JP) = 0(3+), which has been observed first in the double-pionic fusion to deuterium and meanwhile also in neutron-proton scattering — establishing it thus as a genuine s-channel resonance. Double-pionic fusion reactions to the He isotopes demonstrate that this resonance survives also in a nuclear surrounding. It also has been shown to contribute to dilepton production helping thus to resolve the so-called DLS puzzle. Moreover, the existence of dibaryons has also an impact on the equation of state for nuclear matter.
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