Measurement of antiproton annihilation on Cu, Ag and Au with emulsion films

Ariga, Akitaka; Ariga, Tomoko; Ereditato, Antonio; Kawada, Jiro; Pistillo, Ciro; Scampoli, Paola; Vladymyrov, Mykhailo (2017). Measurement of antiproton annihilation on Cu, Ag and Au with emulsion films. Journal of instrumentation, 12(04), P04021-P04021. Institute of Physics Publishing IOP 10.1088/1748-0221/12/04/P04021

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The characteristics of low energy antiproton annihilations on nuclei (e.g. hadronization and product multiplicities) are not well known, and Monte Carlo simulation packages that use different models provide different descriptions of the annihilation events. In this study, we measured the particle multiplicities resulting from antiproton annihilations on nuclei. The results were compared with predictions obtained using different models in the simulation tools GEANT4 and FLUKA. For this study, we exposed thin targets (Cu, Ag and Au) to a very low energy antiproton beam from CERN's Antiproton Decelerator, exploiting the secondary beamline available in the AEgIS experimental zone. The antiproton annihilation products were detected using emulsion films developed at the Laboratory of High Energy Physics in Bern, where they were analysed at the automatic microscope facility. The fragment multiplicity measured in this study is in good agreement with results obtained with FLUKA simulations for both minimally and heavily ionizing particles.

Item Type:

Journal Article (Original Article)

Division/Institute:

10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC)
08 Faculty of Science > Physics Institute > Laboratory for High Energy Physics (LHEP)

UniBE Contributor:

Ariga, Akitaka; Ariga, Tomoko; Ereditato, Antonio; Kawada, Jiro; Pistillo, Ciro; Scampoli, Paola and Vladymyrov, Mykhailo

Subjects:

500 Science > 530 Physics

ISSN:

1748-0221

Publisher:

Institute of Physics Publishing IOP

Language:

English

Submitter:

Ciro Pistillo

Date Deposited:

26 Mar 2018 08:36

Last Modified:

24 Oct 2019 06:57

Publisher DOI:

10.1088/1748-0221/12/04/P04021

ArXiv ID:

1701.06306v2

Additional Information:

AEgIS collaboration: Es sind nur die Berner Autoren namentlich erwähnt.

BORIS DOI:

10.7892/boris.112818

URI:

https://boris.unibe.ch/id/eprint/112818

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