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Measurement of the np -> np pi(0)pi(0) reaction in search for the recently observed d* (2380) resonance

Adlarsona, Patrik (author)
Uppsala universitet,Kärnfysik
Augustyniak, W. (author)
Bardan, W. (author)
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Bashkanov, M. (author)
Bergmann, F. S. (author)
Berlowski, M. (author)
Bhatt, H. (author)
Bondar, A. (author)
Buescher, M. (author)
Calén, Hans (author)
Uppsala universitet,Kärnfysik
Ciepal, I. (author)
Clement, H. (author)
Coderre, D. (author)
Czerwinski, E. (author)
Demmich, K. (author)
Doroshkevich, E. (author)
Engels, R. (author)
Erven, A. (author)
Erven, W. (author)
Eyrich, W. (author)
Fedorets, P. (author)
Foehl, K. (author)
Fransson, Kjell E. I. (author)
Uppsala universitet,Kärnfysik
Goldenbaum, F. (author)
Goslawski, P. (author)
Goswami, A. (author)
Grigoryev, K. (author)
Gullström, Carl-Oscar (author)
Uppsala universitet,Kärnfysik
Hauenstein, F. (author)
Heijkenskjöld, Lena (author)
Uppsala universitet,Kärnfysik
Hejny, V. (author)
Höistad, Bo (author)
Uppsala universitet,Kärnfysik
Huesken, N. (author)
Jarczyk, L. (author)
Johansson, Tord (author)
Uppsala universitet,Kärnfysik
Kamys, B. (author)
Kemmerling, G. (author)
Khan, F. A. (author)
Khoukaz, A. (author)
Kirillov, D. A. (author)
Kistryn, S. (author)
Kleines, H. (author)
Klos, B. (author)
Krzemien, W. (author)
Kulessa, P. (author)
Kupsc, Andrzej (author)
Uppsala universitet,Kärnfysik
Kuzmin, A. (author)
Lalwani, K. (author)
Lersch, D. (author)
Lorentz, B. (author)
Magiera, A. (author)
Maier, R. (author)
Marciniewski, Pawel (author)
Uppsala universitet,Kärnfysik
Marianski, B. (author)
Mikirtychiants, M. (author)
Morsch, H. -P (author)
Moskal, P. (author)
Ohm, H. (author)
Ozerianska, I. (author)
del Rio, E. Perez (author)
Piskunov, N. M. (author)
Podkopal, P. (author)
Prasuhn, D. (author)
Pricking, A. (author)
Pszczel, Damian (author)
Uppsala universitet,Kärnfysik
Pysz, K. (author)
Pyszniak, Andrzej (author)
Uppsala universitet,Kärnfysik
Ritman, J. (author)
Roy, A. (author)
Rudy, Z. (author)
Sawant, S. (author)
Schadmand, S. (author)
Sefzick, T. (author)
Serdyuk, V. (author)
Shwartz, B. (author)
Siudak, R. (author)
Skorodko, T. (author)
Skurzok, M. (author)
Smyrski, J. (author)
Sopov, V. (author)
Stassen, R. (author)
Stepaniak, J. (author)
Stephan, E. (author)
Sterzenbach, G. (author)
Stockhorst, H. (author)
Stroeher, H. (author)
Szczurek, A. (author)
Taeschner, A. (author)
Trzcinski, A. (author)
Varma, R. (author)
Wagner, G. J. (author)
Wolke, Magnus (author)
Uppsala universitet,Kärnfysik
Wronska, A. (author)
Wuestner, P. (author)
Wurm, P. (author)
Yamamoto, A. (author)
Zabierowski, J. (author)
Zielinski, M. J. (author)
Zink, A. (author)
Zlomanczuk, Jozef (author)
Uppsala universitet,Kärnfysik
Zupranski, P. (author)
Zurek, M. (author)
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 (creator_code:org_t)
Elsevier BV, 2015
2015
English.
In: Physics Letters B. - : Elsevier BV. - 0370-2693 .- 1873-2445. ; 743, s. 325-332
  • Journal article (peer-reviewed)
Abstract Subject headings
Close  
  • Exclusive measurements of the quasi-free np --> np pi(0)pi(0) reaction have been performed by means of dp collisions at T-d = 2.27 GeV using the WASA detector setup at COSY. Total and differential cross sections have been obtained covering the energy region root s = (2.35-2.46) GeV, which includes the region of the ABC effect and its associated d* (2380) resonance. Adding the d* resonance amplitude to that for the conventional processes leads to a reasonable description of the data. The observed resonance effect in the total cross section is in agreement with the predictions of Faldt and Wilkin as well with those of Albadajedo and Oset. The ABC effect, i.e. the low-mass enhancement in the pi(0)pi(0)-invariant mass spectrum, is found to be very modest - if present at all, which might pose a problem to some of its interpretations.

Subject headings

NATURVETENSKAP  -- Fysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences (hsv//eng)

Keyword

Two-pion production
ABC effect and resonance structure
Dibaryon resonance

Publication and Content Type

ref (subject category)
art (subject category)

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By the author/editor
Adlarsona, Patri ...
Augustyniak, W.
Bardan, W.
Bashkanov, M.
Bergmann, F. S.
Berlowski, M.
show more...
Bhatt, H.
Bondar, A.
Buescher, M.
Calén, Hans
Ciepal, I.
Clement, H.
Coderre, D.
Czerwinski, E.
Demmich, K.
Doroshkevich, E.
Engels, R.
Erven, A.
Erven, W.
Eyrich, W.
Fedorets, P.
Foehl, K.
Fransson, Kjell ...
Goldenbaum, F.
Goslawski, P.
Goswami, A.
Grigoryev, K.
Gullström, Carl- ...
Hauenstein, F.
Heijkenskjöld, L ...
Hejny, V.
Höistad, Bo
Huesken, N.
Jarczyk, L.
Johansson, Tord
Kamys, B.
Kemmerling, G.
Khan, F. A.
Khoukaz, A.
Kirillov, D. A.
Kistryn, S.
Kleines, H.
Klos, B.
Krzemien, W.
Kulessa, P.
Kupsc, Andrzej
Kuzmin, A.
Lalwani, K.
Lersch, D.
Lorentz, B.
Magiera, A.
Maier, R.
Marciniewski, Pa ...
Marianski, B.
Mikirtychiants, ...
Morsch, H. -P
Moskal, P.
Ohm, H.
Ozerianska, I.
del Rio, E. Pere ...
Piskunov, N. M.
Podkopal, P.
Prasuhn, D.
Pricking, A.
Pszczel, Damian
Pysz, K.
Pyszniak, Andrze ...
Ritman, J.
Roy, A.
Rudy, Z.
Sawant, S.
Schadmand, S.
Sefzick, T.
Serdyuk, V.
Shwartz, B.
Siudak, R.
Skorodko, T.
Skurzok, M.
Smyrski, J.
Sopov, V.
Stassen, R.
Stepaniak, J.
Stephan, E.
Sterzenbach, G.
Stockhorst, H.
Stroeher, H.
Szczurek, A.
Taeschner, A.
Trzcinski, A.
Varma, R.
Wagner, G. J.
Wolke, Magnus
Wronska, A.
Wuestner, P.
Wurm, P.
Yamamoto, A.
Zabierowski, J.
Zielinski, M. J.
Zink, A.
Zlomanczuk, Joze ...
Zupranski, P.
Zurek, M.
show less...
About the subject
NATURAL SCIENCES
NATURAL SCIENCES
and Physical Science ...
Articles in the publication
Physics Letters ...
By the university
Uppsala University

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