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Few-Body Systems

, Volume 55, Issue 8–10, pp 887–892 | Cite as

Recent Studies of Hypernuclei Formation with Electron Beams at MAMI

  • Patrick Achenbach
  • Carlos Ayerbe Gayoso
  • Ralph Böhm
  • Olga Borodina
  • Damir Bosnar
  • Vakkas Bozkurt
  • Luka Debenjak
  • Michael O. Distler
  • Anselm Esser
  • Ivica Friščić
  • Yuu Fujii
  • Toshiyuki Gogami
  • Mar Gómez Rodríguez
  • Osamu Hashimoto
  • Satoshi Hirose
  • Hiroki Kanda
  • Masashi Kaneta
  • Eunhee Kim
  • Junichiro Kusaka
  • Amur Margaryan
  • Harald Merkel
  • Ulrich Müller
  • Sho Nagao
  • Satoshi N. Nakamura
  • Josef Pochodzalla
  • Christophe Rappold
  • Joerg Reinhold
  • Takehiko R. Saito
  • Alicia Sanchez Lorente
  • Salvador Sánchez Majos
  • B. Sören Schlimme
  • Matthias Schoth
  • Florian Schulz
  • Concettina Sfienti
  • Simon Širca
  • Liguang Tang
  • Michaela Thiel
  • Kyo Tsukada
  • A1 Hypernuclear Collaboration
Article

Abstract

At the Mainz Microtron MAMI exploratory experiments on the spectroscopy of mesonic weak decays (MWD) of electroproduced Λ-hypernuclei were performed. A unique setup was realized to use the broad momentum-band kaon spectrometer Kaos at zero degree angle with respect to the high-intensity electron beam direction to tag strangeness producing processes. A sample of order 103 MWD from a beryllium target was collected by the coincidence technique with the high-resolution multi-spectrometer facility of the A1 Collaboration. It is conjectured that this sample contains monochromatic two-body decays from stopped hyperfragment decays as well as a wide momentum distribution of quasi-free produced Λ- and Σ-hyperon decays and three-body decays from hyperfragments. Stopped hyperfragments will be identified as monochromatic peaks in the π momentum spectrum from which their masses can be extracted with a precision of 50 keV/c 2.

Keywords

Core Nucleus Japan Proton Accelerator Research Complex Charge Symmetry Breaking Light Hypernuclei Hypernuclear Physic 
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 Wien 2013

Authors and Affiliations

  • Patrick Achenbach
    • 1
  • Carlos Ayerbe Gayoso
    • 1
  • Ralph Böhm
    • 1
  • Olga Borodina
    • 2
  • Damir Bosnar
    • 3
  • Vakkas Bozkurt
    • 2
  • Luka Debenjak
    • 4
  • Michael O. Distler
    • 1
  • Anselm Esser
    • 1
  • Ivica Friščić
    • 3
  • Yuu Fujii
    • 5
  • Toshiyuki Gogami
    • 5
  • Mar Gómez Rodríguez
    • 1
  • Osamu Hashimoto
    • 5
  • Satoshi Hirose
    • 5
  • Hiroki Kanda
    • 5
  • Masashi Kaneta
    • 5
  • Eunhee Kim
    • 2
  • Junichiro Kusaka
    • 5
  • Amur Margaryan
    • 6
  • Harald Merkel
    • 1
  • Ulrich Müller
    • 1
  • Sho Nagao
    • 5
  • Satoshi N. Nakamura
    • 5
  • Josef Pochodzalla
    • 1
  • Christophe Rappold
    • 2
  • Joerg Reinhold
    • 8
  • Takehiko R. Saito
    • 2
  • Alicia Sanchez Lorente
    • 7
  • Salvador Sánchez Majos
    • 1
  • B. Sören Schlimme
    • 1
  • Matthias Schoth
    • 1
  • Florian Schulz
    • 1
  • Concettina Sfienti
    • 1
  • Simon Širca
    • 4
  • Liguang Tang
    • 9
  • Michaela Thiel
    • 1
  • Kyo Tsukada
    • 5
  • A1 Hypernuclear Collaboration
  1. 1.Institut für KernphysikJohannes Gutenberg-UniversitätMainzGermany
  2. 2.GSI Helmholtz Centre for Heavy Ion ResearchDarmstadtGermany
  3. 3.Department of PhysicsUniversity of ZagrebZagrebCroatia
  4. 4.University of Ljubljana and Institut “Jožef Stefan”LjubljanaSlovenia
  5. 5.Department of PhysicsTohoku UniversitySendaiJapan
  6. 6.Yerevan Physics InstituteYerevanArmenia
  7. 7.Helmholtz Institute MainzMainzGermany
  8. 8.Department of PhysicsFlorida International UniversityMiamiUSA
  9. 9.Department of PhysicsHampton UniversityHamptonUSA

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