Photodisintegration cross section of ⁴He in the giant dipole resonance energy region

Murata, M.; Kawabata, T.; Adachi, S.; Akimune, H.; Amano, S.; Fujikawa, Y.; Furuno, T.; Inaba, K.; Ishii, Y.; Miyamoto, S.; Tsumura, M.; Utsunomiya, H.

doi:https://doi.org/10.1103/PhysRevC.107.064317

Photodisintegration cross section of ⁴He in the giant dipole resonance energy region

Murata, M.; Kawabata, T.; Adachi, S. et al.

Physical Review C, 2023, 107(6), 21

Number of Access:1,786（2026-02-18 01:26 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/92255

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Title	Photodisintegration cross section of ⁴He in the giant dipole resonance energy region
Creator	researchmap permalink atarum atarum CreatorName Murata, M.
	NRID 1000080359645 1000080359645 ORCID 0000-0002-7014-2421 0000-0002-7014-2421 researchmap permalink kawabata.takahiro kawabata.takahiro Scopus Author ID 35380310500 35380310500 CreatorName Kawabata, T.
	NRID 1000060838126 1000060838126 CreatorName Adachi, S.
	NRID 1000060319829 1000060319829 CreatorName Akimune, H.
	NRID 1000050271200 1000050271200 CreatorName Amano, S.
	CreatorName Fujikawa, Y.
	NRID 1000030876363 1000030876363 ORCID 0000-0002-1733-8353 0000-0002-1733-8353 researchmap permalink t-furuno t-furuno Scopus Author ID 55785713800 55785713800 CreatorName Furuno, T.
	CreatorName Inaba, K.
	CreatorName Ishii, Y.
	CreatorName Miyamoto, S.
	CreatorName Tsumura, M.
	NRID 1000000241167 1000000241167 CreatorName Utsunomiya, H.
Description	Murata M., Kawabata T., Adachi S., et al. Photodisintegration cross section of ⁴He in the giant dipole resonance energy region. Physical Review C 107, 21 (2023); https://doi.org/10.1103/PhysRevC.107.064317.
Abstract	We have performed for the first time the simultaneous measurement of the two-body and three-body photodisintegration cross sections of ⁴He in the energy range from 21.8 to 29.8 MeV using monoenergetic pulsed photons and a 4π time projection chamber containing ⁴He gas as an active target in an event-by-event mode. The photon beam was produced via the Compton backscattering of laser photons with high-energy electrons. The ⁴He(γ,p)³H and ⁴He(γ,n)³He cross sections were found to increase monotonically with energy up to 29.8 MeV, in contrast to the result of a recent theoretical calculation based on the Lorentz integral transform method that predicted a pronounced peak at around 26–27 MeV. The energy dependence of the obtained ⁴He(γ,n)³He cross section up to 26.5 MeV is marginally consistent with a Faddeev-type calculation predicting a flat pattern of the excitation function. The cross section ratio of ⁴4He(γ,p)³H to ⁴He(γ,n)³He is found to be consistent with the expected value for charge symmetry of the strong interaction within the experimental uncertainty in the measured energy range. The present results for the total and two-body cross sections of the photodisintegration of ⁴He are compared to previous experimental data and recent theoretical calculations.
Publisher	American Physical Society (APS)
Source Title	Physical Review C
Volume (Issue)	107(6)
Page	21
Date of Issued	2023-06-27
Language	English
Handle URL	https://hdl.handle.net/11094/92255
PISSN	24699985
NCID	AA00773613
Relation.isIdenticalTo	DOI (Publisher Version) https://doi.org/10.1103/PhysRevC.107.064317
Access Rights	open access
CopyRight	©2023 by the American Physical Society
oaire:version	Version of Record
Category	学術雑誌論文 Journal Article

Resource Type	journal article
Local Type	Journal Article
DCMI Type	Text
DCTERMS.bibliographicCitation	Physical Review C. 2023, 107(6), p. 21
DC.title	Photodisintegration cross section of ⁴He in the giant dipole resonance energy region
DC.creator	Murata, M.
	Kawabata, T.
	Adachi, S.
	Akimune, H.
	Amano, S.
	Fujikawa, Y.
	Furuno, T.
	Inaba, K.
	Ishii, Y.
	Miyamoto, S.
	Tsumura, M.
	Utsunomiya, H.
DC.publisher	American Physical Society (APS)
DC.language' scheme='DCTERMS.RFC1766	English
DC.type' scheme='DCTERMS.DCMIType	Text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2023-06-27
DC.identifier	https://doi.org/10.1103/PhysRevC.107.064317
DC.description	Murata M., Kawabata T., Adachi S., et al. Photodisintegration cross section of ⁴He in the giant dipole resonance energy region. Physical Review C 107, 21 (2023); https://doi.org/10.1103/PhysRevC.107.064317.
DCTERMS.abstract	We have performed for the first time the simultaneous measurement of the two-body and three-body photodisintegration cross sections of ⁴He in the energy range from 21.8 to 29.8 MeV using monoenergetic pulsed photons and a 4π time projection chamber containing ⁴He gas as an active target in an event-by-event mode. The photon beam was produced via the Compton backscattering of laser photons with high-energy electrons. The ⁴He(γ,p)³H and ⁴He(γ,n)³He cross sections were found to increase monotonically with energy up to 29.8 MeV, in contrast to the result of a recent theoretical calculation based on the Lorentz integral transform method that predicted a pronounced peak at around 26–27 MeV. The energy dependence of the obtained ⁴He(γ,n)³He cross section up to 26.5 MeV is marginally consistent with a Faddeev-type calculation predicting a flat pattern of the excitation function. The cross section ratio of ⁴4He(γ,p)³H to ⁴He(γ,n)³He is found to be consistent with the expected value for charge symmetry of the strong interaction within the experimental uncertainty in the measured energy range. The present results for the total and two-body cross sections of the photodisintegration of ⁴He are compared to previous experimental data and recent theoretical calculations.
DC.rights	©2023 by the American Physical Society
DC.format	92255
citation_title	Photodisintegration cross section of ⁴He in the giant dipole resonance energy region
citation_author	Murata, M.
	Kawabata, T.
	Adachi, S.
	Akimune, H.
	Amano, S.
	Fujikawa, Y.
	Furuno, T.
	Inaba, K.
	Ishii, Y.
	Miyamoto, S.
	Tsumura, M.
	Utsunomiya, H.
citation_publisher	American Physical Society (APS)
citation_language	English
citation_date	2023-06-27
citation_journal_title	Physical Review C
citation_volume	107
citation_issue	6
citation_firstpage	21
citation_doi	https://doi.org/10.1103/PhysRevC.107.064317
citation_public_url	https://hdl.handle.net/11094/92255

Photodisintegration cross section of ⁴He in the giant dipole resonance energy region

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