Measurement of pi0 pi0 production in the nuclear medium by pi- interactions at 0.408-GeV/c - INSPIRE

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Measurement of pi0 pi0 production in the nuclear medium by pi- interactions at 0.408-GeV/c

Crystal Ball

Collaboration

•

A. Starostin
(
- UCLA
)

2000

4 pages

Published in:

Phys.Rev.Lett. 85 (2000) 5539-5542

DOI:

10.1103/PhysRevLett.85.5539

Experiments:

BNL-E-0913

View in:

reference search85 citations

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Abstract: (APS)

We report on an investigation of the (π−,π0π0) reaction by means of measurements of the π0π0 invariant mass distributions from π− interactions on H, D, C, Al, and Cu targets at pπ−=0.408GeV/c. The sharp, strong peak in the π+π− invariant mass near 2mπ reported by the CHAOS Collaboration is not seen in our π0π0 data. However, we do observe a change in the shape of the π0π0 invariant mass spectrum for the different targets, indicating that the π0π0 interaction diminishes in the nuclear medium as represented by nuclei D, C, Al, and Cu, compared to hydrogen.

pi- nucleus: inclusive reaction
hydrogen
deuterium
carbon
aluminum
copper
pi0: pair production
differential cross section
mass spectrum
dependence: mass number

References(18)

Figures(0)

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