Low-energy Λ-p scattering parameters from the pp→pK+Λ reaction

被引：46

作者：

Balewski, JT

Budzanowski, A

Goodman, C

Grzonka, D

Hofmann, M

Jarczyk, L

Khoukaz, A

Kilian, K

Lister, T

Moskal, P

Oelert, W

Pellmann, IA

Quentmeier, C

Santo, R

Schepers, G

Sefzick, T

Sewerin, S

Smyrski, J

Strzalkowski, A

Thomas, C

Wilkin, C

Wolke, M

Wustner, P

Wyrwa, D

机构：

[1] Inst Nucl Phys, Krakow, Poland

[2] Forschungszentrum Julich, IKP, Julich, Germany

[3] Jagiellonian Univ, Inst Phys, Krakow, Poland

[4] Univ Munster, IKP, D-4400 Munster, Germany

[5] UCL, London WC1E 6BT, England

[6] Forschungszentrum Julich, ZEL, Julich, Germany

来源：

EUROPEAN PHYSICAL JOURNAL A | 1998年 / 2卷 / 01期

关键词：

D O I：

10.1007/s100500050095

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Constraints on the spin-averaged Lambda p scattering length and effective range have been obtained from measurements of the pp --> pK(+)Lambda reaction close to the production threshold by comparing model phase-space Dalitz plot occupations with experimental ones. The data fix well the position of the virtual bound state in the Lambda p system. Combining this with information from elastic Lambda p scattering measurements at slightly higher energies, together with the fact that the hyperdeuteron is not bound, leads to a new determination of the low energy Lambda p scattering parameters.

引用

页码：99 / 104

页数：6

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