th / 0 30 80 60 v 1 2 2 A ug 2 00 3 Coulomb and CSB effects in the three - nucleon system within the dressed bag model for 2 N and
نویسندگان
چکیده
Coulomb and CSB effects in the three-nucleon system within the dressed bag model for 2N and 3N forces. Abstract. Coulomb and charge-symmetry breaking effects in the 3 He ground state within the dressed dibaryon model developed recently for 2N and 3N forces are examined in detail. Particular attention has been paid to the Coulomb displacement energy ∆E C = E B (3 H) − E B (3 He) and rms charge radii of 3 H and 3 He. A new scalar 3N force between the third nucleon and dibaryon is found to be very important for a correct description of the Coulomb energy and rms charge radius in 3 He. In view of the new results for ∆E C obtained here, the role of the effects of charge symmetry breaking in the nuclear force is discussed.
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