Kaon photoproduction operator for use in nuclear physics

Effects of the higher partial waves and relativistic terms on the accuracy of the calculation of the hypertriton electroproduction

“…Although the analysis of Ref. [9] has been performed at the elementary level and using a quite different elementary operator, our result corroborates its finding, i.e., both the exclusion of the SB-terms and the extreme nonrelativistic approach can not be used as a good approximation in the hypertriton electroproduction. Furthermore since the exclusion of the SB-terms was not investigated by the authors of Ref.…”

“…Furthermore since the exclusion of the SB-terms was not investigated by the authors of Ref. [9], our analysis therefore provides an extension of their finding. At this stage, it is also important to consider the cpu-times required to make the plots just shown.…”

“…We shall also compare this result with the result of the approximation made by excluding the relativistic terms in the elementary amplitude as suggested in Ref. [9]. To this end we take the electroproduction process, since photoproduction is only a special case of electroproduction.…”

Strangeness production on the nucleon

“…3.1. These asymmetries are defined in the standard manner: 9) where the + (−) refers to a polarization parallel (anti-parallel) with the respective quantization axis or helicity state (in the case of circularly polarized photons). Double polarization asymmetries are defined as:…”

“…This work marked the start of a long series of theoretical efforts in this field [8][9][10][11][12][13][14][15][16]. The earliest works clearly lacked the presence of a reliable database.…”