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Nucleon mass in nucleon-nucleon short range correlations and the EMC effect | | Rong Wang
; Xurong Chen
; Taofeng Wang
; | | Date: |
10 Jan 2020 | | Abstract: | We determine the nucleon mass in nucleon-nucleon short range correlations
(SRC) and the number of pn-SRC pairs in deuteron from the SRC ratio
measurements, under the assumption that the nucleon mass in SRC pairs is
universal among the different nuclei, for the first time. The nucleon mass in
two-nucleon SRC is $m_{ ext{SRC}}=852pm 18$ MeV, and the number of pn-SRC
pairs in deuterium is $n^{ ext{d}}_{ ext{SRC}}=0.021pm 0.005$. With the
nucleon virtuality in SRC pairs determined, the EMC effect of various nuclei
are predicted using a $x$-rescaling model. The nucleon virtuality in
nucleon-nucleon SRC pairs is not enough to explain the EMC effect. The
modification of mean-field nucleon or the short-distance configurations formed
with more than two nucleons are speculated in order to agree the measured EMC
effect of heavy nucleus. | | Source: | arXiv, 2001.4312 | | Services: | Forum | Review | PDF | Favorites | |
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