One- and two-proton inclusive spectra in 800 MeV proton-nucleus collisions and the mean free path of protons in nuclei

Journal Article · Thu Mar 26 00:00:00 EST 1981 · Physics Letters. Section B

DOI:https://doi.org/10.1016/0370-2693(81)90757-7· OSTI ID:1076522

Tanihata, I. ^[1]; Nagamiya, S. ^[1]; Schnetzer, S. ^[1]; Steiner, H. ^[1]

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1. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States). Dept. of Physics

In this paper, one- and two-proton inclusive spectra have been measured in collisions of 800 MeV protons with C, NaF, KCl, Cu, and Pb targets. The single proton inclusive yield increases monotonically with target mass, while the two-proton yield at θ_lab = ±40° associated with pp quasi-elastic scatterings shows a maximum at a mass number of about 50. Finally, a model calculation reproduces the observed target mass dependence with a mean free path of ≈2.4 fm for 800 MeV protons inside the nucleus.

• Research Organization: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: USDOE; INS-LBL Collaboration Program (United States); Commemorative Association for the Japan World Exposition (Japan)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 1076522
• Report Number(s): LBL-11488
• Journal Information: Physics Letters. Section B, Vol. 100, Issue 2; ISSN 0370-2693
• Publisher: Elsevier
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS