Reactions pd->He-3 eta and pd->He-3 pi(+) pi(-) near the eta threshold

被引：153

作者：

Mayer, B

Boudard, A

Fabbro, B

Garcon, M

Kerboul, C

Poitou, J

Wellers, F

Jacobs, WW

Saudinos, J

TomasiGustafsson, E

Mouly, JP

Kessler, RS

Nefkens, BMK

Tippens, B

vanderSchaaf, A

Abegg, R

vanOers, WTH

Briscoe, W

Petrov, A

Moalem, A

机构：

[1] LAB NATL SATURNE, F-91191 GIF SUR YVETTE, FRANCE

[2] CEA SACLAY, SERV ETUD DETECTEURS, F-91191 GIF SUR YVETTE, FRANCE

[3] UNIV CALIF LOS ANGELES, DEPT PHYS, LOS ANGELES, CA 90024 USA

[4] UNIV ZURICH, INST PHYS, CH-8057 ZURICH, SWITZERLAND

[5] TRIUMF, VANCOUVER, BC V6T 2A3, CANADA

[6] GEORGE WASHINGTON UNIV, DEPT PHYS, WASHINGTON, DC 20052 USA

[7] GEORGE WASHINGTON UNIV, CTR NUCL STUDIES, WASHINGTON, DC 20052 USA

[8] BEN GURION UNIV NEGEV, DEPT PHYS, IL-84105 BEER SHEVA, ISRAEL

来源：

PHYSICAL REVIEW C | 1996年 / 53卷 / 05期

关键词：

D O I：

10.1103/PhysRevC.53.2068

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：

The reaction pd-->He-3 77 has been studied with the SPES2 spectrometer, for proton energies between 0.2 MeV and 11 MeV above threshold. The total cross section rises from 0.25 to 0.40 mu b in this region. The observed energy dependence can be attributed to the strong final state interaction. The angular distribution is nearly isotropic, consistent with S wave production. A measurement of the pd-->He-3 pi(+)pi(-) cross section in the threshold region is also presented. The setup, which is capable of producing 10(5) tagged eta/s with only a few percent background, is used to investigate rare eta decays.

引用

页码：2068 / 2074

页数：7

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