A Study of Charge Symmetry Violation in $\pi^+$ and $\pi^-$ Elastic Scattering From $^{3}$H and $^{3}$He

Pillai, C.; Barlow, D.B.; Nefkens, B.M.K.; Berman, B.L.; Briscoe, W.J.; Mokhtari, A.; Petrov, A.M.; Sadler, M.E.

doi:10.1016/0370-2693(88)90670-3

A Study of Charge Symmetry Violation in $\pi^+$ and $\pi^-$ Elastic Scattering From $^{3}$ H and $^{3}$ He

C. Pillai
(
- UCLA
)
,
D.B. Barlow
(
- UCLA
)
,
B.M.K. Nefkens
(
- UCLA
)
,
B.L. Berman
(
- George Washington U.
)
,
W.J. Briscoe
(
- George Washington U.
)

1988

4 pages

Published in:

Phys.Lett.B 207 (1988) 389-392

Published: 1988

DOI:

10.1016/0370-2693(88)90670-3

View in:

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Abstract: (Elsevier)

New data on the charge-symmetric superratio R and the simple ratios r ′ 1 and r ′ 2 are reported for π + and π − elastic scattering from 3 H and 3 He at T π =142, 180, and 220 MeV at θ π (lab) from 40° to 110°; R≡ d σ(π + 3 H ) d σ(π − 3 H ) d σ(π − 3 He ) d σ(π + 3 He ) , r′ 1 = d σ(π + 3 H ) d σ(π − d ) d σ(π − 3 He ) d σ(π + d ) , and r′ 2 = d σ(π − 3 H ) d σ(π + d ) d σ(π + 3 He ) d σ(π − d ) . We find that R >1, r′ 1 ⋍1 , and r ′ 2 >1 at all energies and angles. These results are not accounted for by any of the available calculations which attempt to include only electromagnetic effects. This disagreement suggests that the violation of charge symmetry is due to a combination of strong and electromagnetic effects.

PI+ LIGHT NUCLEUS: ELASTIC SCATTERING
ELASTIC SCATTERING: PI+ LIGHT NUCLEUS
PI- LIGHT NUCLEUS: ELASTIC SCATTERING
ELASTIC SCATTERING: PI- LIGHT NUCLEUS
TRITIUM
HELIUM: NUCLIDE
CHARGE: SYMMETRY
DIFFERENTIAL CROSS SECTION: RATIO
RATIO: DIFFERENTIAL CROSS SECTION
DIFFERENTIAL CROSS SECTION: ANGULAR DEPENDENCE

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Figures(0)

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A Study of Charge Symmetry Violation in π+\pi^+π+ and π−\pi^-π− Elastic Scattering From 3^{3}3H and 3^{3}3He

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A Study of Charge Symmetry Violation in $\pi^+$ and $\pi^-$ Elastic Scattering From $^{3}$ H and $^{3}$ He