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Book ; Conference proceedings: Kaigi-hōkoku / Sutorenjinesu-Kakubutsuri-no-Saikin-no-Tenkai-Jikken, Riron-Gōdō-kenkyūkai = Recent progress of strangeness nuclear physics : March 15 - 17, 2002, KEK, Tsukuba, Japan

Hiyama, E / Outa, H

(KEK proceedings ; 2002,29)

2003

Title variant	Recent progress of strangeness nuclear physics
Institution	Sutorenjinesu-Kakubutsuri-no-Saikin-no-Tenkai-Jikken, Riron-Gōdō-Kenkyūkai
Event/congress	Sutorenjinesu Kakubutsuri no Saikin no Tenkai Jikken, Riron Gōdō kenkyūkai (2002.03.15-17, Tsukuba)
Author's details	[High Energy Accelerator Research Organization]. Ed. by H. Outa; E. Hiyama
Series title	KEK proceedings ; 2002,29
Language	Japanese
Size	254 S, Ill., graph. Darst
Publisher	High Energy Accelerator Research Organization
Publishing place	Tsukuba-shi
Document type	Book ; Conference proceedings
Database	Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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Book ; Conference proceedings: Kaigi-hōkoku / J-PARC-ni-Okeru-Sutorenjinesu-Kakubutsuri-no-Saikin-no-Tenkai-Jikken, Riron-Gōdō-Kenkyūkai : July 29 - 31, 2003, KEK, Tsukuba, Japan

Hiyama, E / Nagae, T / Outa, H

(KEK proceedings ; 2003,18)

2004

Title variant	Prospect of Strangeness Nuclear Physics at J-PARC
Institution	Sutorenjinesu-Kakubutsuri-no-Saikin-no-Tenkai-Jikken, Riron-Gōdō-Kenkyūkai
Event/congress	Sutorenjinesu Kakubutsuri no Saikin no Tenkai Jikken, Riron Gōdō kenkyūkai (2003.07.29-31, Tsukuba) ; Workshop Prospect of Strangeness Nuclear Physics at J-PARC (2003.07.29-31, Tsukuba)
Author's details	[High Energy Accelerator Research Organization]. Ed. by H. Outa; T. Nagae; E. Hiyama
Series title	KEK proceedings ; 2003,18
Language	Japanese ; English
Size	VI, 228 S, Ill., graph. Darst
Publisher	High Energy Accelerator Research Organization
Publishing place	Tsukuba-shi
Document type	Book ; Conference proceedings
Database	Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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Article ; Online: Measurements of Strong-Interaction Effects in Kaonic-Helium Isotopes at Sub-eV Precision with X-Ray Microcalorimeters.

Hashimoto, T / Aikawa, S / Akaishi, T / Asano, H / Bazzi, M / Bennett, D A / Berger, M / Bosnar, D / Butt, A D / Curceanu, C / Doriese, W B / Durkin, M S / Ezoe, Y / Fowler, J W / Fujioka, H / Gard, J D / Guaraldo, C / Gustafsson, F P / Han, C /

Hayakawa, R / Hayano, R S / Hayashi, T / Hays-Wehle, J P / Hilton, G C / Hiraiwa, T / Hiromoto, M / Ichinohe, Y / Iio, M / Iizawa, Y / Iliescu, M / Ishimoto, S / Ishisaki, Y / Itahashi, K / Iwasaki, M / Ma, Y / Murakami, T / Nagatomi, R / Nishi, T / Noda, H / Noumi, H / Nunomura, K / O'Neil, G C / Ohashi, T / Ohnishi, H / Okada, S / Outa, H / Piscicchia, K / Reintsema, C D / Sada, Y / Sakuma, F / Sato, M / Schmidt, D R / Scordo, A / Sekimoto, M / Shi, H / Shirotori, K / Sirghi, D / Sirghi, F / Suzuki, K / Swetz, D S / Takamine, A / Tanida, K / Tatsuno, H / Trippl, C / Uhlig, J / Ullom, J N / Yamada, S / Yamaga, T / Yamazaki, T / Zmeskal, J

Physical review letters

2022 Volume 128, Issue 11, Page(s) 112503

Abstract: We have measured the 3d→2p transition x rays of kaonic ^{3}He and ^{4}He atoms using superconducting transition-edge-sensor microcalorimeters with an energy resolution better than 6 eV (FWHM). We determined the energies to be 6224.5±0.4(stat)±0.2(syst) ... ...

Abstract	We have measured the 3d→2p transition x rays of kaonic ^{3}He and ^{4}He atoms using superconducting transition-edge-sensor microcalorimeters with an energy resolution better than 6 eV (FWHM). We determined the energies to be 6224.5±0.4(stat)±0.2(syst) eV and 6463.7±0.3(stat)±0.1(syst) eV, and widths to be 2.5±1.0(stat)±0.4(syst) eV and 1.0±0.6(stat)±0.3(stat) eV, for kaonic ^{3}He and ^{4}He, respectively. These values are nearly 10 times more precise than in previous measurements. Our results exclude the large strong-interaction shifts and widths that are suggested by a coupled-channel approach and agree with calculations based on optical-potential models.
Language	English
Publishing date	2022-04-01
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.128.112503
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Relationships between cold hardiness and diapause, and between glycerol and free amino acid contents in overwintering larvae of the oriental corn borer, Ostrinia furnacalis.

Goto / Sekine / Outa / Hujikura / Koichi

Journal of insect physiology

2001 Volume 47, Issue 2, Page(s) 157–165

Abstract: To elucidate the relationship between diapause and cold hardiness in the oriental corn borer, Ostrinia furnacalis, the levels of various substances, cold hardiness and respiration were measured in diapausing and post-diapausing overwintering larvae. ... ...

Abstract	To elucidate the relationship between diapause and cold hardiness in the oriental corn borer, Ostrinia furnacalis, the levels of various substances, cold hardiness and respiration were measured in diapausing and post-diapausing overwintering larvae. Under field conditions, diapause terminated between November and January, although O(2) consumption, measured at 20 degrees C in the laboratory, remained at a high level from October to January. Glycerol content was low during October and November but greatly increased during December and January. Serine was the most abundant of the free amino acids, and its concentrations were especially high during October and November, while the concentration of alanine increased in December and January. Under laboratory conditions, glycerol levels were low in diapausing larvae, and in post-diapausing larvae that were acclimated at either high temperatures or under anaerobic conditions, while they were high in post-diapausing larvae kept under aerobic, low temperature conditions. The survival rate (cold hardiness) was strongly correlated with glycerol content but not with serine or alanine levels. These results suggest that O. furnacalis has a highly developed cold hardiness mechanism in which termination of diapause enables the larvae to increase glycerol levels when the temperature decreases.
Language	English
Publishing date	2001-02-01
Publishing country	England
Document type	Journal Article
ISSN	1879-1611
ISSN (online)	1879-1611
DOI	10.1016/s0022-1910(00)00099-8
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Relationships between cold hardiness and diapause, and between glycerol and free amino acid contents in overwintering larvae of the oriental corn borer, Ostrinia furnacalis

Goto, M / Sekine, Y / Outa, H / Hujikura, M / Suzuki, K

Journal of insect physiology. Feb 2001. v. 47 (2)

2001

Keywords	Ostrinia furnacalis ; larvae ; overwintering ; diapause ; respiratory quotient ; oxygen consumption ; chemical composition ; glycerol ; trehalose ; free amino acids ; glycogen ; acclimation ; ambient temperature ; seasonal variation ; anaerobic conditions ; mortality ; cold tolerance ; supercooling point
Language	English
Dates of publication	2001-02
Size	p. 157-165.
Document type	Article
ISSN	0022-1910
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Evidence for heavy hyperhydrogen (Λ)(6)h.

Agnello, M / Benussi, L / Bertani, M / Bhang, H C / Bonomi, G / Botta, E / Bregant, M / Bressani, T / Bufalino, S / Busso, L / Calvo, D / Camerini, P / Dalena, B / De Mori, F / D'Erasmo, G / Fabbri, F L / Feliciello, A / Filippi, A / Fiore, E M /

Fontana, A / Fujioka, H / Genova, P / Gianotti, P / Grion, N / Lucherini, V / Marcello, S / Mirfakhrai, N / Moia, F / Morra, O / Nagae, T / Outa, H / Pantaleo, A / Paticchio, V / Piano, S / Rui, R / Simonetti, G / Wheadon, R / Zenoni, A / Gal, A

Physical review letters

2012 Volume 108, Issue 4, Page(s) 42501

Abstract: Evidence for the neutron-rich hypernucleus (Λ)(6)H is presented from the FINUDA experiment at DAΦNE, Frascati, studying (π+,π-) pairs in coincidence from the K(stop)(-) + (6)Li →(Λ)(6)H + π+ production reaction followed by (Λ)(6)H → (6)He + π- weak decay. ...

Abstract	Evidence for the neutron-rich hypernucleus (Λ)(6)H is presented from the FINUDA experiment at DAΦNE, Frascati, studying (π+,π-) pairs in coincidence from the K(stop)(-) + (6)Li →(Λ)(6)H + π+ production reaction followed by (Λ)(6)H → (6)He + π- weak decay. The production rate of (Λ)(6) undergoing this two-body π- decay is determined to be (2.9 ± 2.0) × 10(-6)/K(stop)(-). Its binding energy, evaluated jointly from production and decay, is BΛ((Λ)(6)H) = (4.0 ± 1.1) MeV with respect to (5)H+Λ. A systematic difference of (0.98 ± 0.74) MeV between BΛ values derived separately from decay and from production is tentatively assigned to the (Λ)(6)H 0(g.s.)(+) → 1+ excitation.
Language	English
Publishing date	2012-01-27
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.108.042501
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Proton energy spectra in the nonmesonic weak decay of 12lambdaC and 28lambdaSi hypernuclei.

Hashimoto, O / Ajimura, S / Aoki, K / Bhang, H / Hasegawa, T / Hotchi, H / Kim, Y D / Kishimoto, T / Maeda, K / Noumi, H / Ohta, Y / Omata, K / Outa, H / Park, H / Sato, Y / Sekimoto, M / Shibata, T / Takahashi, T / Youn, M

Physical review letters

2002 Volume 88, Issue 4, Page(s) 42503

Abstract: Numbers of protons per Gamma hypernuclear weak decay were measured as a function of proton energy above 40 MeV, explicitly identifying production of Gamma hypernuclei by the (pi+,K+) reaction. The ratios between the neutron-stimulated to proton- ... ...

Abstract	Numbers of protons per Gamma hypernuclear weak decay were measured as a function of proton energy above 40 MeV, explicitly identifying production of Gamma hypernuclei by the (pi+,K+) reaction. The ratios between the neutron-stimulated to proton-stimulated nonmesonic decay widths, Gamma((Lambda)n-->nn)/Gamma((Lambda)p-->np) ( = Gamma(n)/Gamma(p)) were extracted by fitting the proton energy spectra. The present result claims that the proton yields are suppressed and the Gamma(n)/Gamma(p) ratios are close to 1 both for 12LambdaC and 28LambdaSi in contradiction to theoretical expectations based on meson exchange models.
Language	English
Publishing date	2002-01-28
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.88.042503
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Three-body nonmesonic weak decay of the (Lambda)12C hypernucleus.

Kim, M / Ajimura, S / Aoki, K / Banu, A / Bhang, H / Fukuda, T / Hashimoto, O / Hwang, J I / Kameoka, S / Kang, B H / Kim, E / Kim, J H / Maruta, T / Miura, Y / Miyake, Y / Nagae, T / Nakamura, M / Nakamura, S N / Noumi, H /

Okada, S / Okayasu, Y / Outa, H / Park, H / Saha, P K / Sato, Y / Sekimoto, M / Takahashi, T / Tamura, H / Tanida, K / Toyoda, A / Tshoo, K / Tsukada, K / Watanabe, T / Yim, H J

Physical review letters

2009 Volume 103, Issue 18, Page(s) 182502

Abstract: We have measured the branching ratio of the three-body process in the nonmesonic weak decay of Lambda12C to be 0.29+/-0.13. This result was obtained by reproducing the nucleon and the nucleon pair yields introducing a measured final state interaction. At ...

Abstract	We have measured the branching ratio of the three-body process in the nonmesonic weak decay of Lambda12C to be 0.29+/-0.13. This result was obtained by reproducing the nucleon and the nucleon pair yields introducing a measured final state interaction. At the same time, we have determined the absolute decay widths, Gamma(n) and Gamma(p), along with Gamma2N, whose relative ratio has been a long-standing puzzle. Including the three-body process, we have successfully reproduced the nucleon energy distribution, the coincidence two-nucleon angular correlation, and the momentum sum distribution simultaneously.
Language	English
Publishing date	2009-10-30
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.103.182502
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Exclusive measurement of the nonmesonic weak decay of the lambda(5)He hypernucleus.

Kang, B H / Bhang, H / Kim, E H / Kim, J H / Kim, M J / Yim, H J / Ajimura, S / Miyake, Y / Aoki, K / Nagae, T / Noumi, H / Outa, H / Saha, P K / Sato, Y / Sekimoto, M / Toyoda, A / Banu, A / Fukuda, T / Hashimoto, O /

Kameoka, S / Miura, Y / Nakamura, S N / Okayasu, Y / Takahashi, T / Tamura, H / Tsukada, K / Watanabe, T / Hwang, J I / Maruta, T / Nakamura, M / Okada, S / Park, H / Tanida, K

Physical review letters

2006 Volume 96, Issue 6, Page(s) 62301

Abstract: We performed a coincidence measurement of two nucleons emitted from the nonmesonic weak decay of lambda(5)He formed via the 6Li(pi+, K+) reaction. The energies of the two nucleons and the pair number distributions in the opening angle between them were ... ...

Abstract	We performed a coincidence measurement of two nucleons emitted from the nonmesonic weak decay of lambda(5)He formed via the 6Li(pi+, K+) reaction. The energies of the two nucleons and the pair number distributions in the opening angle between them were measured. In both np and nn pairs, we observed a clean back-to-back correlation coming from the two-body weak reactions of lambda p --> np and lambda n --> nn, respectively. The ratio of the nucleon pair numbers was N(nn)/N(np) = 0.45 +/- 0.11(stat) +/- 0.03(syst) in the kinematic region of cos theta(NN) < -0.8. Since each decay mode was exclusively detected, the measured ratio should be close to the ratio of gamma(lambda p --> np)/gamma(lambda n --> nn). The ratio is consistent with recent theoretical calculations based on the heavy meson and/or direct-quark exchange picture.
Language	English
Publishing date	2006-02-17
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.96.062301
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: The Contribution of the Three-Body Process in the Nonmesonic Weak Decay of the Λ12C Hypernucleus.

Takahashi T. / Sekimoto M. / Saha P.K. / Sato Y. / Outa H. / Park H. / Okayasu Y. / Noumi H. / Okada S. / Nakamura S.N. / Nakamura M. / Nagae T. / Miyake Y. / Miura Y. / Maruta T. / Kim J.H. / Kim E. / Kang B.H. / Kameoka S. /

Hwang J.I. / Hashimoto O. / Fukuda T. / Banu A. / Aoki K. / Ajimura S. / Bhang H. / Tamura H. / Tanida K. / Toyoda A. / Tshoo K. / Tsukada K. / Watanabe T. / Yim H.J.

EPJ Web of Conferences, Vol 3, p

2010 Volume 05013

Abstract: The serious inconsistency problem between the values of experimental and theoretical Γn /Γp ratio of the nonmesonic weak decay of Λ hypernuclei has been resolved recently. We have shown that the reason behind the problem was the quenching of the nucleon ... ...

Abstract	The serious inconsistency problem between the values of experimental and theoretical Γn /Γp ratio of the nonmesonic weak decay of Λ hypernuclei has been resolved recently. We have shown that the reason behind the problem was the quenching of the nucleon yields which in turn was due to the contribution of the three-body process. We have measured that the branching ratio of the three-body process in nonmesonic weak decay, 0.29±0.13, is so large that the absolute values of Γn and Γp must be determined taking account of the contribution of the 3-body process. In this paper, the recent studies toward the ﬁnding of the 3-body process via the exclusive coincidence experiments are presented.
Keywords	Physics ; QC1-999 ; Science ; Q ; DOAJ:Physics (General) ; DOAJ:Physics and Astronomy
Language	English
Publishing date	2010-04-01T00:00:00Z
Publisher	EDP Sciences
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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