期刊
JOURNAL OF THE KOREAN PHYSICAL SOCIETY
卷 82, 期 6, 页码 579-585出版社
KOREAN PHYSICAL SOC
DOI: 10.1007/s40042-023-00709-w
关键词
Pentaquark; K+d reaction; Hyperon Spectrometer; J-PARC
We propose to search for theta+ in the K(+)d -> K(0)pp reaction at pK(+)=0.5 GeV/c at J-PARC. A large acceptance Hyperon Spectrometer, consisting of a time projection chamber and a 1-T superconducting magnet, will be used to exclusively measure the decay products of theta(+), such as theta(+) -> K(0)p, followed by K-0 -> pi(+)pi, with a mass resolution of 1 MeV at M-theta. Through Monte Carlo simulation, we expect to collect five orders of magnitude theta(+) events, assuming a cross section of 300 mu b in a 15-day beam time at J-PARC.
We propose to search for theta+ in K(+)d -> K(0)pp reaction at pK(+)=0.5 GeV/c at J-PARC. A large acceptance Hyperon Spectrometer, which consists mainly of a time projection chamber and a 1-T superconducting magnet, will exclusively measure the decay products of theta(+), such that theta(+) -> K(0)p, followed by K-0 -> pi(+)pi , with a mass resolution of 1 MeV at M-theta. We investigated the feasibility of the proposed experiment using a Monte Carlo simulation. As a result, we expect to collect five orders of magnitude theta(+) events, assuming a cross section of 300 mu b in 15-day beam time at J-PARC.
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