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  • Adlarson, Patrik (author)

Isoscalar single-pion production in the region of Roper and d*(2380) resonances

  • E-article/E-chapterEnglish2017

Publisher, publication year, extent ...

  • ELSEVIER SCIENCE BV2017

Numbers

  • LIBRIS-ID:22496061
  • http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-344327uri
  • urn:nbn:se:uu:diva-344327urn
  • 10.1016/j.physletb.2017.10.015doi

Supplementary language notes

  • Language:English

Part of subdatabase

Notes

  • Published
  • Deutsche Forschungsgemeinschaft (DFG) [CL 214/3-1]
  • Deutsche Forschungsgemeinschaft (DFG) [CL 214/3-2]
  • gratis
  • Exclusive measurements of the quasi-free pn -> pp pi(-) and pp -> pp pi(0) reactions have been performed by means of pd collisions at T-p= 1.2 GeV using the WASA detector setup at COSY. Total and differential cross sections have been obtained covering the energy region T-p= 0.95-1.3 GeV (root s = 2.3-2.46 GeV), which includes the regions of triangle(1232), N*(1440) and d*(2380) resonance excitations. From these measurements the isoscalar single-pion production has been extracted, for which data existed so far only below T-p = 1 GeV. We observe a substantial increase of this cross section around 1 GeV, which can be related to the Roper resonance N*(1440), the strength of which shows up isolated from the triangle resonance in the isoscalar (N pi)(I=0) invariant-mass spectrum. No evidence for a decay of the dibaryon resonance d*(2380) into the isoscalar (NN pi)(I=0) channel is found. An upper limit of 180 mu b (90% CL.) corresponding to a branching ratio of 9% has been deduced.

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  • Augustyniak, W. (author)
  • Bardan, W. (author)
  • Bashkanov, M. (author)
  • Bergmann, F. S. (author)
  • Berlowski, M. (author)
  • Bhatt, H. (author)
  • Bondar, A. (author)
  • Buescher, M. (author)
  • Calen, H. (author)
  • Ciepal, I. (author)
  • Clement, H. (author)
  • Czerwinski, E. (author)
  • Demmich, K. (author)
  • Engels, R. (author)
  • Erven, A. (author)
  • Erven, W. (author)
  • Eyrich, W. (author)
  • Fedorets, P. (author)
  • Foehl, K. (author)
  • Fransson, Kjell (author)
  • Goldenbaum, F. (author)
  • Goswami, A. (author)
  • Grigoryev, K. (author)
  • Gullström, Carl-Oskar (author)
  • Heijkenskjöld, Lena1985- (author)
  • Hejny, V. (author)
  • Huesken, N. (author)
  • Jarczyk, L. (author)
  • Johansson, Tord (author)
  • Kamys, B. (author)
  • Kemmerling, G. (author)
  • Khatri, G. (author)
  • Khoukaz, A. (author)
  • Khreptak, O. (author)
  • Kirillov, D. A. (author)
  • Kistryn, S. (author)
  • Kleines, H. (author)
  • Klos, B. (author)
  • Krzemien, W. (author)
  • Kulessa, P. (author)
  • Kupsc, Andrzej (author)
  • Kuzmin, A. (author)
  • Lalwani, K. (author)
  • Lersch, D. (author)
  • Lorentz, B. (author)
  • Magiera, A. (author)
  • Maier, R. (author)
  • Marciniewski, Pawel (author)
  • Marianski, B. (author)
  • Morsch, H. -P (author)
  • Moskal, P. (author)
  • Ohm, H. (author)
  • Parol, W. (author)
  • del Rio, E. Perez (author)
  • Piskunov, N. M. (author)
  • Prasuhn, D. (author)
  • Pszczel, Damian (author)
  • Pysz, K. (author)
  • Pyszniak, A. (author)
  • Ritman, J. (author)
  • Roy, A. (author)
  • Rudy, Z. (author)
  • Rundel, O. (author)
  • Sawant, S. (author)
  • Schadmand, S. (author)
  • Schatti-Ozerianska, I. (author)
  • Sefzick, T. (author)
  • Serdyuk, V. (author)
  • Shwartz, B. (author)
  • Sitterberg, K. (author)
  • Skorodko, T. (author)
  • Skurzok, M. (author)
  • Smyrski, J. (author)
  • Sopov, V. (author)
  • Stassen, R. (author)
  • Stepaniak, J. (author)
  • Stephan, E. u (author)
  • Sterzenbach, G. (author)
  • Stockhorst, H. (author)
  • Stroeher, H. (author)
  • Szczurek, A. (author)
  • Trzcinski, A. (author)
  • Varma, R. (author)
  • Wolke, Magnus (author)
  • Wronska, A. (author)
  • Wuestner, P. (author)
  • Yamamoto, A. (author)
  • Zabierowski, J. (author)
  • Zielinski, M. J. (author)
  • Zlomanczuk, Jozef (author)
  • Zupranski, P. (author)
  • Zurekj, M. (author)
  • Uppsala universitetTeknisk-naturvetenskapliga vetenskapsområdet (publisher)

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  • Part of/supplement to:channel record
  • In:VärdpublikationPhysics Letters B774, 599-6070370-2693

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