Abstract
We have studied the transfer reaction $^{14}$N($^7$Be,$^8$B)$^{13}$C at (\mathrm{E}_{\mathrm{lab}}=84) MeV, paying special attention to the effects of the coupling to the continuum in the exit channel. Using the Continuum Discretized Coupled Channels (CDCC) formalism, we find that these effects are important for the description of the elastic scattering observables. However, for the transfer process, differences between the predictions of the differential cross section within the Distorted Wave Born Approximation (DWBA) and the CDCC-Born approximation (CDCC-BA) are found to be negligible. This result supports the use of the DWBA method as a reliable tool to extract the $S_{17}(0)$ factor in this case.
Highlights
ÝÓÒ Ø ÓÐÐ Ø Ú ÓÔØ Ð ÑÓ ÐÇÅμ ÔÔÖÓ ØÓÌ ×ØÙ Ý Ó Ø ÓÙÔÐ Ò ØÓ Ø ÓÒØ ÒÙÙÑ Ò ØÖ Ò× Ö ÔÖÓ ×× × Û Ø ÐÓÓ× ÐÝ ÓÙÒ ÒÙ Ð × Ð×ÓÓÖÐÚÒ ÓÖ ×ØÖÓÔ Ý× ×o Ì ×ÝÑÔØÓØ ÒÓÖÑ Ð Þ Ø ÓÒ Ó 1 ÒØ ÆμÑØÓ 1⁄2 ℄ × Ò ÔÙØ ÓÖÛ Ö × Ò Ð1 Ø ÖÒ Ø Ú Û Ý ØÓ Ó Ø Ò Ò ÓÖÑ Ø ÓÒ ÓÙØ Ø ÐÓÛ Ò Ö Ý S1 ØÓÖ×o Ì × Ñ Ø Ó Ù× × Ø ×ÓÐÙØ ÒÓÖÑ Ð Þ Ø ÓÒ ÓÔÖÔÖÐ ØÖ Ò× Ö Ö Ø ÓÒ ØÓ Ø ÖÑ Ò Ø ÒÓÖÑ Ð1 Þ Ø ÓÒ Ó Ø Ú ÖØ × ÒÚÓÐÚ Ò Ø ÔÖÓ ××o ÁØ× ÔÔÐ 1.
Ö ×ÙÐØ × Ú Ö Ð Ø ×Ø× Ú Ò Ô Ö ÓÖÑ ØÓ Ò×ÙÖ Ø× Ú Ð ØÝ× ÓÖ Ü ÑÔÐ ÓÑÔ Ö ×ÓÒ Û Ø Ö Ø Ñ 1 ×ÙÖ Ñ ÒØ× 3⁄41⁄4℄ ÓÖ Ø ÜØÖ Ø ÓÒ Ó Ø × Ñ Ò ÓÖÑ Ø ÓÒ ÖÓÑ × Ø Ó Ö ÒØ Ö Ø ÓÒ× 3⁄41⁄2℄μo Î ÖÝ Ö ÒØÐÝ Ø ÑÔÓÖØ Ò Ó ÓÙÔÐ Ò ØÓ Ü Ø Ò Ð ×Ø ÒÒ Ð× ÓØØÖØÛ × ×× ×× 3⁄43⁄4℄ Ò Ö ×ÙÐØ× ÑÔ × Þ Ø Ø Ö × ÓÙÐ Ø Ò Û Ò ÓÓ× Ò Ø Ø Ö Øo.
ÕÙ ÒØÐÝ Ø S17(0) Ú ÐÙ ÜØÖ Ø ÖÓÑ 10 ́7 ̧8 μ9 × ÓÙÐ ÒÓØ Ù× Û Ø ÓÙØ ÙÖØ Ö Ò Ð ×Ø ×ØÙ × ̧ ÙØ.
Summary
Ì ×ØÙ Ý Ó Ø ÓÙÔÐ Ò ØÓ Ø ÓÒØ ÒÙÙÑ Ò ØÖ Ò× Ö ÔÖÓ ×× × Û Ø ÐÓÓ× ÐÝ ÓÙÒ ÒÙ Ð × Ð×ÓÓÖÐÚÒ ÓÖ ×ØÖÓÔ Ý× ×o Ì ×ÝÑÔØÓØ ÒÓÖÑ Ð Þ Ø ÓÒ Ó 1 ÒØ ÆμÑØÓ 1⁄2 ℄ × Ò ÔÙØ ÓÖÛ Ö × Ò Ð1 Ø ÖÒ Ø Ú Û Ý ØÓ Ó Ø Ò Ò ÓÖÑ Ø ÓÒ ÓÙØ Ø ÐÓÛ Ò Ö Ý S1 ØÓÖ×o Ì × Ñ Ø Ó Ù× × Ø ×ÓÐÙØ ÒÓÖÑ Ð Þ Ø ÓÒ ÓÔÖÔÖÐ ØÖ Ò× Ö Ö Ø ÓÒ ØÓ Ø ÖÑ Ò Ø ÒÓÖÑ Ð1 Þ Ø ÓÒ Ó Ø Ú ÖØ × ÒÚÓÐÚ Ò Ø ÔÖÓ ××o ÁØ× ÔÔÐ 1. Ö ×ÙÐØ × Ú Ö Ð Ø ×Ø× Ú Ò Ô Ö ÓÖÑ ØÓ Ò×ÙÖ Ø× Ú Ð ØÝ× ÓÖ Ü ÑÔÐ ÓÑÔ Ö ×ÓÒ Û Ø Ö Ø Ñ 1 ×ÙÖ Ñ ÒØ× 3⁄41⁄4℄ ÓÖ Ø ÜØÖ Ø ÓÒ Ó Ø × Ñ Ò ÓÖÑ Ø ÓÒ ÖÓÑ × Ø Ó Ö ÒØ Ö Ø ÓÒ× 3⁄41⁄2℄μo Î ÖÝ Ö ÒØÐÝ Ø ÑÔÓÖØ Ò Ó ÓÙÔÐ Ò ØÓ Ü Ø Ò Ð ×Ø ÒÒ Ð× ÓØØÖØÛ × ×× ×× 3⁄43⁄4℄ Ò Ö ×ÙÐØ× ÑÔ × Þ Ø Ø Ö × ÓÙÐ Ø Ò Û Ò ÓÓ× Ò Ø Ø Ö Øo. ÕÙ ÒØÐÝ Ø S17(0) Ú ÐÙ ÜØÖ Ø ÖÓÑ 10 ́7 ̧8 μ9 × ÓÙÐ ÒÓØ Ù× Û Ø ÓÙØ ÙÖØ Ö Ò Ð ×Ø ×ØÙ × ̧ ÙØ. ÙÔ ØÓ ÒÓÛo ÍÒØ Ð Ö ÒØÐÝ S17 ÜØÖ Ø ÖÓÑ ÓØ Ø ØÖ Ò× Ö Ö Ø ÓÒ Ó 3⁄4 ℄ Ò Ø ÓÙÐÓÑ ××Ó Ø ÓÒ
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