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- W2759055074 abstract "Within an isospin- and momentum-dependent transport model for nuclear reactions at intermediate energies, we investigate the interplay of the nucleon-nucleon short-range correlations (SRCs) and nuclear symmetry energy ${E}_{text{sym}}(ensuremath{rho})$ on hard-photon spectra in collisions of several Ca isotopes on $^{112}mathrm{Sn}$ and $^{124}mathrm{Sn}$ targets at a beam energy of 45 MeV/nucleon. It is found that over the whole spectra of hard photons studied, effects of the SRCs overwhelm those owing to the ${E}_{text{sym}}(ensuremath{rho})$. The energetic photons come mostly from the high-momentum tails (HMTs) of single-nucleon momentum distributions in the target and projectile. Within the neutron-proton dominance model of SRCs based on the consideration that the tensor force acts mostly in the isosinglet and spin-triplet nucleon-nucleon interaction channel, there are equal numbers of neutrons and protons, thus a zero isospin asymmetry in the HMTs. Therefore, experimental measurements of the energetic photons from heavy-ion collisions at Fermi energies have the great potential to help us better understand the nature of SRCs without any appreciable influence by the uncertain ${E}_{text{sym}}(ensuremath{rho})$. These measurements will be complementary to but also have some advantages over the ongoing and planned experiments using hadronic messengers from reactions induced by high-energy electrons or protons. Because the underlying physics of SRCs and ${E}_{text{sym}}(ensuremath{rho})$ are closely correlated, a better understanding of the SRCs will, in turn, help constrain the nuclear symmetry energy more precisely in a broad density range." @default.
- W2759055074 created "2017-10-06" @default.
- W2759055074 creator A5031199912 @default.
- W2759055074 creator A5081532600 @default.
- W2759055074 date "2017-12-21" @default.
- W2759055074 modified "2023-10-10" @default.
- W2759055074 title "Interplay of short-range correlations and nuclear symmetry energy in hard-photon production from heavy-ion reactions at Fermi energies" @default.
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- W2759055074 doi "https://doi.org/10.1103/physrevc.96.064614" @default.
- W2759055074 hasPublicationYear "2017" @default.
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