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SUBTHRESHOLD K+ PRODUCTION IN THE INTERACTION OF 1-GEV PROTONS WITH BE, C, AL, CU, SN, AND PB NUCLEI

Abrosimov, N.K. ; Volchenkov, V.A. ; Gordeev, V.A. ; et al.

JETP Lett. 36 (1982) 261-264, 1982.

Inspire Record 185896 DOI 10.17182/hepdata.38014

None

2 data tables

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Production of Massive Muon Pairs by 300-GeV and 400-GeV Protons

Kluberg, L. ; Piroue, P.A. ; Sumner, Richard L. ; et al.

Phys.Rev.Lett. 37 (1976) 1451, 1976.

Inspire Record 4051 DOI 10.17182/hepdata.1201

We have observed muon pairs with effective masses in the range 7<~Mμμ<~11 GeV/c2 produced by 300- and 400-GeV protons incident on a Cu target at Fermilab. The production cross section per nucleon, dσdMμμ, for 400-GeV incident protons is found to fall from 1 × 10−36 cm2/(GeV/c2) at Mμμ=7.7 GeV/c2 to 2.7 × 10−38 cm2/(GeV/c2) at Mμμ=11.2 GeV/c2. We find that a significant fraction of the observed direct single muons come from high-mass dimuons.

12 data tables

Table 1

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Comparison of p + A and Si + Au collisions at 14.6-GeV/c

The E802 collaboration Abbott, T. ; Akiba, Y. ; Beavis, D. ; et al.

Phys.Rev.Lett. 66 (1991) 1567-1570, 1991.

Inspire Record 331219 DOI 10.17182/hepdata.19913

The production of π±,K±,p has been measured in p+Be and p+Au collisions for comparison with central Si+Au collisions. The inverse slope parameters T0 obtained by an exponential fit to the invariant cross sections in transverse mass are found to be, T0p,K+,ππ∼140–160 MeV in p+A collisions, whereas in central Si+Au collisions, T0p,K+∼200–220 MeV >T0ππ∼140–160 MeV at midrapidity. The π± and K+ distributions are shifted backwards in p+Au compared with p+Be. A gradual increase of (dn/dy)K+ per projectile nucleon is observed from p+Be to p+Au to central Si+Au collisions, while pions show no significant increase.

5 data tables

Table 1

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Table 3

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