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Measurement of the doubly-polarized reaction at 16.5 MeV and its implications for the GDH sum rule

2015
journal article
article
10.1016/j.physletb.2015.09.065
Journal
Physics Letters. B
40
Author
Laskaris G.

Yan X.

Mueller J. M.

Zimmerman W. R.

Xiong W.
Show more
Volume
750
Pages
547-551
ISSN
0370-2693
eISSN
1873-2445
Keywords in English

GDH sum rule

polarized

photoabsorption

polarization observables

Language
English
Journal language
English
Abstract in English

We report new measurements of the double-polarized photodisintegration of 3He at an incident photon energy of 16.5 MeV, carried out at the High Intensity γ-ray Source (HIγS) facility located at Triangle Universities Nuclear Laboratory (TUNL). The spin-dependent double-differential cross sections and the contribution from the three-body channel to the Gerasimov–Drell–Hearn (GDH) integrand were extracted and compared with the state-of-the-art three-body calculations. The calculations, which include the Coulomb interaction and are in good agreement with the results of previous measurements at 12.8 and 14.7 MeV, deviate from the new cross section results at 16.5 MeV. The GDH integrand was found to be about one standard deviation larger than the maximum value predicted by the theories.

Affiliation
Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiego
Scopus© citations
6
dc.abstract.enWe report new measurements of the double-polarized photodisintegration of 3He at an incident photon energy of 16.5 MeV, carried out at the High Intensity γ-ray Source (HIγS) facility located at Triangle Universities Nuclear Laboratory (TUNL). The spin-dependent double-differential cross sections and the contribution from the three-body channel to the Gerasimov–Drell–Hearn (GDH) integrand were extracted and compared with the state-of-the-art three-body calculations. The calculations, which include the Coulomb interaction and are in good agreement with the results of previous measurements at 12.8 and 14.7 MeV, deviate from the new cross section results at 16.5 MeV. The GDH integrand was found to be about one standard deviation larger than the maximum value predicted by the theories.pl
dc.affiliationWydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiegopl
dc.contributor.authorLaskaris, G.pl
dc.contributor.authorYan, X.pl
dc.contributor.authorMueller, J. M.pl
dc.contributor.authorZimmerman, W. R.pl
dc.contributor.authorXiong, W.pl
dc.contributor.authorAhmed, M. W.pl
dc.contributor.authorAverett, T.pl
dc.contributor.authorChu, P.-H.pl
dc.contributor.authorDeltuva, A.pl
dc.contributor.authorFlower, C.pl
dc.contributor.authorFonseca, A. C.pl
dc.contributor.authorGao, H.pl
dc.contributor.authorGolak, Jacek - 100012 pl
dc.contributor.authorHeideman, J. N.pl
dc.contributor.authorKarwowski, H. J.pl
dc.contributor.authorMeziane, M.pl
dc.contributor.authorSauer, P. U.pl
dc.contributor.authorSkibiński, Roman - 101892 pl
dc.contributor.authorStrakovsky, I. I.pl
dc.contributor.authorWeller, H. R.pl
dc.contributor.authorWitała, Henryk - 100075 pl
dc.contributor.authorWu, Y. K.pl
dc.date.accessioned2015-12-10T10:16:31Z
dc.date.available2015-12-10T10:16:31Z
dc.date.issued2015pl
dc.date.openaccess0
dc.description.accesstimew momencie opublikowania
dc.description.physical547-551pl
dc.description.publication0,3pl
dc.description.versionostateczna wersja wydawcy
dc.description.volume750pl
dc.identifier.doi10.1016/j.physletb.2015.09.065pl
dc.identifier.eissn1873-2445pl
dc.identifier.issn0370-2693pl
dc.identifier.projectROD UJ / Ppl
dc.identifier.urihttp://ruj.uj.edu.pl/xmlui/handle/item/18008
dc.languageengpl
dc.language.containerengpl
dc.rightsUdzielam licencji. Uznanie autorstwa 4.0 Międzynarodowa*
dc.rights.licenceCC-BY
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/legalcode.pl*
dc.share.typeotwarte czasopismo
dc.source.integratorfalse
dc.subject.enGDH sum rulepl
dc.subject.enpolarized $^{3}He$pl
dc.subject.enphotoabsorptionpl
dc.subject.enpolarization observablespl
dc.subtypeArticlepl
dc.titleMeasurement of the doubly-polarized $^{3}\vec{H}e(\vec{\gamma},n)pp$ reaction at 16.5 MeV and its implications for the GDH sum rulepl
dc.title.journalPhysics Letters. Bpl
dc.typeJournalArticlepl
dspace.entity.typePublication
dc.abstract.enpl
We report new measurements of the double-polarized photodisintegration of 3He at an incident photon energy of 16.5 MeV, carried out at the High Intensity γ-ray Source (HIγS) facility located at Triangle Universities Nuclear Laboratory (TUNL). The spin-dependent double-differential cross sections and the contribution from the three-body channel to the Gerasimov–Drell–Hearn (GDH) integrand were extracted and compared with the state-of-the-art three-body calculations. The calculations, which include the Coulomb interaction and are in good agreement with the results of previous measurements at 12.8 and 14.7 MeV, deviate from the new cross section results at 16.5 MeV. The GDH integrand was found to be about one standard deviation larger than the maximum value predicted by the theories.
dc.affiliationpl
Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiego
dc.contributor.authorpl
Laskaris, G.
dc.contributor.authorpl
Yan, X.
dc.contributor.authorpl
Mueller, J. M.
dc.contributor.authorpl
Zimmerman, W. R.
dc.contributor.authorpl
Xiong, W.
dc.contributor.authorpl
Ahmed, M. W.
dc.contributor.authorpl
Averett, T.
dc.contributor.authorpl
Chu, P.-H.
dc.contributor.authorpl
Deltuva, A.
dc.contributor.authorpl
Flower, C.
dc.contributor.authorpl
Fonseca, A. C.
dc.contributor.authorpl
Gao, H.
dc.contributor.authorpl
Golak, Jacek - 100012
dc.contributor.authorpl
Heideman, J. N.
dc.contributor.authorpl
Karwowski, H. J.
dc.contributor.authorpl
Meziane, M.
dc.contributor.authorpl
Sauer, P. U.
dc.contributor.authorpl
Skibiński, Roman - 101892
dc.contributor.authorpl
Strakovsky, I. I.
dc.contributor.authorpl
Weller, H. R.
dc.contributor.authorpl
Witała, Henryk - 100075
dc.contributor.authorpl
Wu, Y. K.
dc.date.accessioned
2015-12-10T10:16:31Z
dc.date.available
2015-12-10T10:16:31Z
dc.date.issuedpl
2015
dc.date.openaccess
0
dc.description.accesstime
w momencie opublikowania
dc.description.physicalpl
547-551
dc.description.publicationpl
0,3
dc.description.version
ostateczna wersja wydawcy
dc.description.volumepl
750
dc.identifier.doipl
10.1016/j.physletb.2015.09.065
dc.identifier.eissnpl
1873-2445
dc.identifier.issnpl
0370-2693
dc.identifier.projectpl
ROD UJ / P
dc.identifier.uri
http://ruj.uj.edu.pl/xmlui/handle/item/18008
dc.languagepl
eng
dc.language.containerpl
eng
dc.rights*
Udzielam licencji. Uznanie autorstwa 4.0 Międzynarodowa
dc.rights.licence
CC-BY
dc.rights.uri*
http://creativecommons.org/licenses/by/4.0/legalcode.pl
dc.share.type
otwarte czasopismo
dc.source.integrator
false
dc.subject.enpl
GDH sum rule
dc.subject.enpl
polarized $^{3}He$
dc.subject.enpl
photoabsorption
dc.subject.enpl
polarization observables
dc.subtypepl
Article
dc.titlepl
Measurement of the doubly-polarized $^{3}\vec{H}e(\vec{\gamma},n)pp$ reaction at 16.5 MeV and its implications for the GDH sum rule
dc.title.journalpl
Physics Letters. B
dc.typepl
JournalArticle
dspace.entity.type
Publication
Affiliations
Wydział Fizyki, Astronomii i Informatyki Stosowanej
Golak, Jacek
Skibiński, Roman
Witała, Henryk
No affiliation
Laskaris, G.
Yan, X.
Mueller, J. M.
Zimmerman, W. R.
Xiong, W.
Ahmed, M. W.
Averett, T.
Chu, P.-H.
Deltuva, A.
Flower, C.
Fonseca, A. C.
Gao, H.
Heideman, J. N.
Karwowski, H. J.
Meziane, M.
Sauer, P. U.
Strakovsky, I. I.
Weller, H. R.
Wu, Y. K.

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