منابع مشابه
Radiative decay of a scalar in a medium
Various processes which are forbidden in the vacuum by a combination of requirements, such as Lorentz and gauge invariance, can occur in the presence of a background medium. Here we consider the decay of a spin-0 particle into a photon and another spin-0 particle, which is forbidden in the vacuum due to angular momentum conservation, and show that it can occur in a medium even if the medium doe...
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We study the renormalization of the properties of the low lying charm and hidden charm scalar mesons in a nuclear medium, concretely of the D s0 (2317), D 0 (2400) and the theoretical hidden charm state X(3700). We find that for the D s0 (2317), with negligible width at zero density, the width becomes about 100 MeV at normal nuclear matter density, while in the case of the X(3700) the width bec...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 2020
ISSN: 0370-2693
DOI: 10.1016/j.physletb.2020.135779