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Exclusive measureme...
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Keleta, SUppsala universitet,Institutionen för fysik och astronomi
(author)
Exclusive measurement of two-pion production in the dd -> He-4 pi pi reaction
- Article/chapterEnglish2009
Publisher, publication year, extent ...
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Elsevier BV,2009
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printrdacarrier
Numbers
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LIBRIS-ID:oai:DiVA.org:uu-128410
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https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-128410URI
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https://doi.org/10.1016/j.nuclphysa.2009.04.008DOI
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https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-32609URI
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https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-226093URI
Supplementary language notes
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Language:English
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Summary in:English
Part of subdatabase
Classification
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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Totalt 49 författare
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QC 20180418
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The results from the first kinematically complete measurement of the dd -> He-4 pi pi reaction are reported. The aim was to investigate a long standing puzzle regarding the origin of the peculiar pi pi-invariant mass distributions appearing in double pion production in light ion collisions, the so-called ABC effect. The measurements were performed at the incident deuteron energies of 712 MeV and 1029 MeV. with the WASA detector assembly at CELSIUS in Uppsala, Sweden. We report the observation of a characteristic enhancement at low pi pi-invariant mass at 712 MeV, the lowest energy yet. At the higher energy, in addition to confirming previous experimental observations, Our results reveal a strong angular dependence of the pions in the overall centre of mass system. The results are qualitatively reproduced by a theoretical model, according to which the ABC effect is described as resulting from a kinematical enhancement in the production of the pion pairs from two parallel and independent NN -> d pi sub-processes. (C) 2009 Elsevier B.V. All rights reserved.
Subject headings and genre
Added entries (persons, corporate bodies, meetings, titles ...)
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Bargholtz, Chr
(author)
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Bashkanov, M
(author)
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Berlowski, M
(author)
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Bogoslawsky, D
(author)
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Calèn, HUppsala universitet,Institutionen för fysik och astronomi
(author)
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Clement, H
(author)
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Demirors, L
(author)
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Ekström, CUppsala universitet,The Svedberg-laboratoriet
(author)
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Fransson, KUppsala universitet,Institutionen för fysik och astronomi
(author)
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Geren, LStockholms universitet,Fysikum,kärnfysik,Stockholms universitet, Fysikum(Swepub:uu)linge755
(author)
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Gustafsson, LUppsala universitet,Institutionen för fysik och astronomi
(author)
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Hoistad, BUppsala universitet,Institutionen för fysik och astronomi
(author)
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Ivanov, G
(author)
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Jacewicz, MUppsala universitet,Institutionen för fysik och astronomi
(author)
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Jiganov, E
(author)
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Johansson, TUppsala universitet,Institutionen för fysik och astronomi
(author)
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Khakimova, O
(author)
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Kren, F
(author)
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Kullander, SUppsala universitet,Institutionen för fysik och astronomi
(author)
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Kupsc, AUppsala universitet,Institutionen för fysik och astronomi(Swepub:uu)andrkups
(author)
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Kuzmin, A
(author)
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Lindberg, KStockholms universitet,Fysikum,kärnfysik,Stockholms universitet, Fysikum
(author)
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Marciniewski, PUppsala universitet,Institutionen för fysik och astronomi
(author)
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Morosov, B
(author)
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Oelert, W
(author)
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Pauly, C
(author)
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Petrèn, HUppsala universitet,Institutionen för fysik och astronomi
(author)
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Petukhov, Y
(author)
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Povtorejko, A
(author)
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Pricking, A
(author)
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Ruber, R. J. M. Y.Uppsala universitet,Institutionen för fysik och astronomi
(author)
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Schönning, KUppsala universitet,Institutionen för fysik och astronomi
(author)
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Scobel, W
(author)
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Shafigullin, R
(author)
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Shwartz, B
(author)
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Skorodko, T
(author)
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Sopov, V
(author)
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Stepaniak, J
(author)
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Tegnér, Per-ErikStockholms universitet,Fysikum,kärnfysik,Stockholms universitet, Fysikum(Swepub:su)tegner
(author)
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Thörngren-Engblom, PiaStockholms universitet,Fysikum,kärnfysik,Stockholms universitet, Fysikum(Swepub:kth)u19p2yof
(author)
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Tikhomirov, V
(author)
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Turowiecki, A
(author)
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Wagner, J
(author)
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Wilkin, C
(author)
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Wolke, M
(author)
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Zabierowski, J
(author)
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Zartova, IStockholms universitet,Fysikum,kärnfysik,Stockholms universitet, Fysikum
(author)
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Zlomanczuk, JUppsala universitet,Institutionen för fysik och astronomi
(author)
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Bargholtz, ChristophStockholms universitet,Fysikum,Kärnfysik
(author)
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Bargholtz, ChStockholms universitet, Fysikum
(author)
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Uppsala universitetInstitutionen för fysik och astronomi
(creator_code:org_t)
Related titles
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In:Nuclear Physics A: Elsevier BV825:1-2, s. 71-900375-94741873-1554
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- By the author/editor
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Keleta, S
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Bargholtz, Chr
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Bashkanov, M
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Berlowski, M
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Bogoslawsky, D
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Calèn, H
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show more...
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Clement, H
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Demirors, L
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Ekström, C
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Fransson, K
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Geren, L
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Gustafsson, L
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Hoistad, B
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Ivanov, G
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Jacewicz, M
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Jiganov, E
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Johansson, T
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Khakimova, O
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Kren, F
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Kullander, S
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Kupsc, A
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Kuzmin, A
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Lindberg, K
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Marciniewski, P
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Morosov, B
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Oelert, W
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Pauly, C
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Petrèn, H
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Petukhov, Y
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Povtorejko, A
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Pricking, A
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Ruber, R. J. M. ...
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Schönning, K
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Scobel, W
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Shafigullin, R
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Shwartz, B
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Skorodko, T
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Sopov, V
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Stepaniak, J
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Tegnér, Per-Erik
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Thörngren-Engblo ...
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Tikhomirov, V
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Turowiecki, A
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Wagner, J
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Wilkin, C
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Wolke, M
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Zabierowski, J
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Zartova, I
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Zlomanczuk, J
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Bargholtz, Chris ...
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Bargholtz, Ch
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Subatomic Physic ...
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Nuclear Physics ...
- By the university
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Uppsala University
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Stockholm University
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Royal Institute of Technology