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From the same journal

Total and differential cross sections of η-production in proton–deuteron fusion for excess energies between Qη = 13 MeV and Qη = 81 MeV

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  • P. Adlarson
  • W. Augustyniak
  • W. Bardan
  • M. Bashkanov
  • F. S. Bergmann
  • M. Berłowski
  • A. Bondar
  • M. Büscher
  • H. Calén
  • I. Ciepał
  • H. Clement
  • E. Czerwiński
  • K. Demmich
  • R. Engels
  • A. Erven
  • W. Erven
  • W. Eyrich
  • P. Fedorets
  • K. Föhl
  • K. Fransson
  • F. Goldenbaum
  • A. Goswami
  • K. Grigoryev
  • C. O. Gullström
  • L. Heijkenskjöld
  • V. Hejny
  • N. Hüsken
  • L. Jarczyk
  • T. Johansson
  • B. Kamys
  • G. Kemmerling
  • G. Khatri
  • A. Khoukaz
  • A. Khreptak
  • D. A. Kirillov
  • S. Kistryn
  • H. Kleines
  • B. Kłos
  • W. Krzemień
  • P. Kulessa
  • A. Kupść
  • A. Kuzmin
  • K. Lalwani
  • D. Lersch
  • B. Lorentz
  • A. Magiera
  • R. Maier
  • P. Marciniewski
  • B. Mariański
  • H. P. Morsch
  • The WASA-at-COSY Collaboration


Publication details

JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
DateAccepted/In press - 13 May 2018
DateE-pub ahead of print - 18 May 2018
DatePublished (current) - 10 Jul 2018
Number of pages8
Pages (from-to)297-304
Early online date18/05/18
Original languageEnglish


New data on both total and differential cross sections of the production of η mesons in proton–deuteron fusion to He3η in the excess energy region 13.6MeV≤Qη≤80.9MeV are presented. These data have been obtained with the WASA-at-COSY detector setup located at the Forschungszentrum Jülich, using a proton beam at 15 different beam momenta between pp=1.60GeV/c and pp=1.74GeV/c. While significant structure of the total cross section is observed in the energy region 20MeV≲Qη≲60MeV, a previously reported sharp variation around Qη≈50MeV cannot be confirmed. Angular distributions show the typical forward-peaking that was noted earlier. For the first time, it is possible to study the development of these angular distributions with rising excess energy over a wide interval.

Bibliographical note

© 2018 The Author. Published by Elsevier B.V.

    Research areas

  • Meson production, Proton–deuteron interactions, η meson

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