TY - JOUR

T1 - Effects of the higher partial waves and relativistic terms on the accuracy of the calculation of the hypertriton electroproduction

AU - Mart, T.

N1 - Funding Information:
This work has been partially supported by the University of Indonesia.

PY - 2009/1/1

Y1 - 2009/1/1

N2 - We have investigated the accuracies of calculations made by omitting the higher partial waves of nuclear wave functions and the elementary relativistic terms in the hypertriton electroproduction. We found that an accurate calculation would still be obtained if we used at least three lowest partial waves with isospin T = 0. Furthermore, we found that the omission of the relativistic terms in the elementary process amplitude could lead to a large deviation from the full calculation. We also present the cpu-times required to calculate the cross sections. For future consideration the use of these lowest partial waves is suggested, since the calculated cross section deviates only about 0.17 nb/sr (≈4%), at most, from the full calculation, whereas the cpu-time is reduced by a factor of 60. Comparison of our result with the available experimental data supports these findings.

AB - We have investigated the accuracies of calculations made by omitting the higher partial waves of nuclear wave functions and the elementary relativistic terms in the hypertriton electroproduction. We found that an accurate calculation would still be obtained if we used at least three lowest partial waves with isospin T = 0. Furthermore, we found that the omission of the relativistic terms in the elementary process amplitude could lead to a large deviation from the full calculation. We also present the cpu-times required to calculate the cross sections. For future consideration the use of these lowest partial waves is suggested, since the calculated cross section deviates only about 0.17 nb/sr (≈4%), at most, from the full calculation, whereas the cpu-time is reduced by a factor of 60. Comparison of our result with the available experimental data supports these findings.

KW - Hypernuclei

KW - Meson electroproduction

KW - Partial waves

UR - http://www.scopus.com/inward/record.url?scp=57349147092&partnerID=8YFLogxK

U2 - 10.1016/j.nuclphysa.2008.10.009

DO - 10.1016/j.nuclphysa.2008.10.009

M3 - Article

AN - SCOPUS:57349147092

SN - 0375-9474

VL - 815

SP - 18

EP - 28

JO - Nuclear Physics A

JF - Nuclear Physics A

IS - 1-4

ER -