Neutron energy spectra from non-mesonic weak decay of 5Λ He and 12Λ hypernuclei

被引：0

作者：

Okada, S ^{[1
]}

Aoki, K ^{[1
]}

Fukuda, T ^{[1
]}

Nagae, T ^{[1
]}

Noumi, H ^{[1
]}

Outa, H ^{[1
]}

Saha, PK ^{[1
]}

Sato, Y ^{[1
]}

Sekimoto, M ^{[1
]}

Toyoda, A ^{[1
]}

Bhang, HC ^{[1
]}

Hwang, JI ^{[1
]}

Kang, BH ^{[1
]}

Kim, EH ^{[1
]}

Kim, JH ^{[1
]}

Kim, MJ ^{[1
]}

Park, H ^{[1
]}

Yim, HJ ^{[1
]}

Hashimoto, O ^{[1
]}

Kameoka, S ^{[1
]}

Miura, Y ^{[1
]}

Nakamura, SN ^{[1
]}

Okayasu, Y ^{[1
]}

Takahashi, T ^{[1
]}

Tamura, H ^{[1
]}

Tsukada, K ^{[1
]}

Watanabe, T ^{[1
]}

Maruta, T ^{[1
]}

Nakamura, M ^{[1
]}

Tanida, K ^{[1
]}

Ajimura, S ^{[1
]}

Miyake, Y ^{[1
]}

Banu, A ^{[1
]}

机构：

[1] Tokyo Inst Technol, Dept Phys, Tokyo 1528551, Japan

来源：

ELECTROPHOTOPRODUCTION OF STRANGENESS ON NUCLEONS AND NUCLEI | 2004年

关键词：

D O I：

10.1142/9789812702920_0043

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We have measured neutron energy spectra emitted from the weak decay of He-5(Lambda) and C-12(Lambda) produced via (pi(+),K+) reaction. The most serious problem in such a nucleon measurement is energy distortion due to the final state interaction (FSI). Furthermore, recently the 2N induced decay process, ANN --> nNN, have been predicted in theoretical calculation. Both processes tend to enhance low energy region. While proton energy measurement suffers from energy loss in the target, the neutron energy measurement is advantageous to observe the shape of low energy part. The neutron energy spectrum from the lightest hypernucleus of He-5(Lambda), which is most suitable for minimizing FSI effect, is measured for the first time.

引用

页码：417 / 420

页数：4

共 50 条

[41] Measurement of π0 mesonic decay widths (Γπo) of Λ hypernuclei, 5ΛHe and 12ΛC
Yim, H
ELECTROPHOTOPRODUCTION OF STRANGENESS ON NUCLEONS AND NUCLEI, 2004, : 434 - 437
[42] First determination of the one-proton induced Non-Mesonic Weak Decay width of p-shell Λ-Hypernuclei
Agnello, M.
Benussi, L.
Bertani, M.
Bhang, H. C.
Bonomi, G.
Botta, E.
Bressani, T.
Bufalino, S.
Calvo, D.
Camerini, P.
Dalena, B.
De Mori, F.
D'Erasmo, G.
Feliciello, A.
Filippi, A.
Fujioka, H.
Gianotti, P.
Grion, N.
Lucherini, V.
Marcello, S.
Nagae, T.
Outa, H.
Paticchio, V.
Piano, S.
Rui, R.
Simonetti, G.
Zenoni, A.
PHYSICS LETTERS B, 2014, 738 : 499 - 504
[43] ΛN → NN EFT potentials and hypertriton non-mesonic weak decay
Perez-Obiol, Axel
Entem, David R.
Nogga, Andreas
FAIRNESS 2017: FAIR NEXT GENERATION SCIENTISTS 2017, 2018, 1024
[44] On the effect of the Δ(1232) in hypernuclear non-mesonic weak decay: A microscopic approach
Bauer, E.
Garbarino, G.
PHYSICS LETTERS B, 2012, 716 (01) : 249 - 253
[45] Non-mesonic weak decays of light hypernuclei in the direct quark and the one-pion exchange
Inoue, T
Oka, M
Motoba, T
Itonaga, K
NUCLEAR PHYSICS A, 1998, 633 (02) : 312 - 330
[46] ΔI=1/2 rule in the nonmesonic weak decay of the hypernuclei 5Δ He and 12ΔC
Jun, JH
JOURNAL OF THE KOREAN PHYSICAL SOCIETY, 2005, 46 (05) : 1251 - 1254
[47] Neutron energy spectra from the nonmesonic weak decay of Λ12C and Λ89Y hypernuclei -: art. no. 065201
Kim, JH
Bhang, H
Kim, MJ
Kim, YD
Park, H
Ajimura, S
Kishimoto, T
Minami, S
Mori, T
Sakaguchi, A
Shimizu, Y
Sumihama, M
Endo, T
Hashimoto, O
Miyoshi, T
Nishida, J
Saito, T
Sato, Y
Satoh, S
Takahashi, T
Tamura, H
Fukuda, T
Nagae, T
Noumi, H
Outa, H
Sekimoto, M
Hotchi, H
Tanida, K
Sawafta, R
Tang, LI
PHYSICAL REVIEW C, 2003, 68 (06):
[48] Kinetic energy sum spectra in nonmesonic weak decay of hypernuclei
Barbero, Cesar
Galeao, Alfredo P.
Hussein, Mahir S.
Krmpotic, Francisco
PHYSICAL REVIEW C, 2008, 78 (04):
[49] Neutron and proton spectra from the decay of Lambda hypernuclei
Ramos, A
VicenteVacas, MJ
Oset, E
PHYSICAL REVIEW C, 1997, 55 (02): : 735 - 744
[50] Asymmetry in the nonmesonic weak decay of polarized Λ5He hypernuclei
Ajimura, S
Ikeda, K
Ishikawa, M
Kishimoto, T
Okusu, A
Shinkai, N
Tanaka, Y
Ejiri, H
Nakano, T
Manabe, K
Nagae, T
Noumi, H
Sekimoto, M
Shibata, T
Hashimoto, O
Maeda, K
Takahashi, T
Hasegawa, T
Bhang, H
Kim, YD
Park, H
Youn, M
PHYSICAL REVIEW LETTERS, 2000, 84 (18) : 4052 - 4055

← 1 2 3 4 5 →