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Study of \(p + d \rightarrow ^{3}{\mathrm A} + \pi\) reactions in the \(\Delta\)-resonance region

  • S. Abdel-Samad
  • J. Bojowald
  • A. Budzanowski
  • A. Chatterjee
  • J. Ernst
  • D. Frekers
  • P. Hawranek
  • J. Ilieva
  • L. Jarczyk
  • K. Kilian
  • S. Kliczewski
  • W. Klimala
  • D. Kolev
  • M. Kravcíková
  • T. Kutsarova
  • J. Lieb
  • H. Machner
  • A. Magiera
  • G. Martinská
  • H. Nann
  • L. Pentchev
  • D. Protic
  • P. von Rossen
  • B. J. Roy
  • R. Siudak
  • A. Strzalkowski
  • R. Tsenov
  • M. Ulicný
  • J. UrbánEmail author
  • K. Zwoll
Article

Abstract.

A stack of annular detectors made of high-purity germanium was used to measure \(p + d\to\noindent {^3{\rm He}} + \pi^0\) and \(p + d\to{^3{\rm H}} + \pi^ + \) differential and total cross-sections at beam momenta from 900 MeV/c to 1050 MeV/c. The total cross-sections are consistent with \(\Delta\)-excitation. The differential data consist of two components. One corresponds to large momentum transfer from the projectile to the pion, the other to small momentum transfer. The former shows an independence of the slope as a function of the momentum transfer t (scaling). The scale parameter is different for \(\pi^ + \) and \(\pi^0\) emission which violates isospin symmetry. The second component which is almost isotropic is in agreement with isospin symmetry. It is approximately a quarter of the total yield in the \(\Delta\)-resonance region.

Keywords

Germanium Scale Parameter Total Yield Momentum Transfer Resonance Region 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin/Heidelberg 2003

Authors and Affiliations

  • S. Abdel-Samad
    • 1
  • J. Bojowald
    • 1
  • A. Budzanowski
    • 3
  • A. Chatterjee
    • 9
  • J. Ernst
    • 7
  • D. Frekers
    • 8
  • P. Hawranek
    • 1
    • 3
  • J. Ilieva
    • 1
    • 5
  • L. Jarczyk
    • 3
  • K. Kilian
    • 1
  • S. Kliczewski
    • 4
  • W. Klimala
    • 1
    • 3
  • D. Kolev
    • 6
  • M. Kravcíková
    • 12
  • T. Kutsarova
    • 5
  • J. Lieb
    • 10
  • H. Machner
    • 1
  • A. Magiera
    • 1
    • 3
  • G. Martinská
    • 1
  • H. Nann
    • 11
  • L. Pentchev
    • 5
  • D. Protic
    • 1
  • P. von Rossen
    • 1
  • B. J. Roy
    • 9
  • R. Siudak
    • 4
  • A. Strzalkowski
    • 3
  • R. Tsenov
    • 6
  • M. Ulicný
    • 1
    • 12
  • J. Urbán
    • 7
    • 12
    Email author
  • K. Zwoll
    • 2
  1. 1.Institut für KernphysikForschungszentrum JülichJülichGermany
  2. 2.Zentrallabor für ElektronikForschungszentrum JülichJülichGermany
  3. 3.Institute of PhysicsJagellonian UniversityKrakówPoland
  4. 4.Institute of Nuclear PhysicsKrakówPoland
  5. 5.Institute of Nuclear Physics and Nuclear EnergySofiaBulgaria
  6. 6.Physics FacultyUniversity of SofiaSofiaBulgaria
  7. 7.Institut für Strahlen- und Kernphysik der Universität BonnBonnGermany
  8. 8.Institut für KernphysikUniversität MünsterMünsterGermany
  9. 9.Nuclear Physics DivisionBARCBombayIndia
  10. 10.Physics DepartmentGeorge Mason UniversityFairfaxUSA
  11. 11.IUCFIndiana UniversityBloomingtonUSA
  12. 12.P.J. Safarik UniversityKosiceSlovakia

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