Polarization of Λ's and Λ̄'s produced by 400-GeV protons

K. Heller; P. T. Cox; J. Dworkin; O. E. Overseth; P. Skubic; L. Schachinger; T. Devlin; B. Edelman; R. T. Edwards; G. Bunce; R. Handler; R. March; P. Martin; L. Pondrom; M. Sheaff

doi:10.1103/PhysRevLett.41.607

Polarization of Λ's and Λ̄'s produced by 400-GeV protons

K. Heller, P. T. Cox, J. Dworkin, O. E. Overseth, P. Skubic, L. Schachinger, T. Devlin, B. Edelman, R. T. Edwards, G. Bunce, R. Handler, R. March, P. Martin, L. Pondrom, M. Sheaff

Physics and Astronomy (Twin Cities)

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Abstract

We have measured the polarization of 3×10;6 Λ0 and 2.5×105 Λ̄0 hyperons produced by 400-GeV protons on a beryllium target. The hyperons were detected at a fixed angle of 7.2 mrad and in the momentum range from 50 to 300 GeV/c for Λ0 and 50 to 200 GeV/c for Λ0. The Λ0 polarization agrees with that measured at 24 and 300 GeV and is - 0.24 ± 0.04 at pT=2.1 GeV/c. The Λ̄0 polarization is zero up to pT=1.2 GeV/c.

Original language	English (US)
Pages (from-to)	607-611
Number of pages	5
Journal	Physical review letters
Volume	41
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevLett.41.607
State	Published - 1978

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title = "Polarization of Λ's and {\=Λ}'s produced by 400-GeV protons",

abstract = "We have measured the polarization of 3×10;6 Λ0 and 2.5×105 {\=Λ}0 hyperons produced by 400-GeV protons on a beryllium target. The hyperons were detected at a fixed angle of 7.2 mrad and in the momentum range from 50 to 300 GeV/c for Λ0 and 50 to 200 GeV/c for Λ0. The Λ0 polarization agrees with that measured at 24 and 300 GeV and is - 0.24 ± 0.04 at pT=2.1 GeV/c. The {\=Λ}0 polarization is zero up to pT=1.2 GeV/c.",

author = "K. Heller and Cox, {P. T.} and J. Dworkin and Overseth, {O. E.} and P. Skubic and L. Schachinger and T. Devlin and B. Edelman and Edwards, {R. T.} and G. Bunce and R. Handler and R. March and P. Martin and L. Pondrom and M. Sheaff",

year = "1978",

doi = "10.1103/PhysRevLett.41.607",

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TY - JOUR

T1 - Polarization of Λ's and Λ̄'s produced by 400-GeV protons

AU - Heller, K.

AU - Cox, P. T.

AU - Dworkin, J.

AU - Overseth, O. E.

AU - Skubic, P.

AU - Schachinger, L.

AU - Devlin, T.

AU - Edelman, B.

AU - Edwards, R. T.

AU - Bunce, G.

AU - Handler, R.

AU - March, R.

AU - Martin, P.

AU - Pondrom, L.

AU - Sheaff, M.

PY - 1978

Y1 - 1978

N2 - We have measured the polarization of 3×10;6 Λ0 and 2.5×105 Λ̄0 hyperons produced by 400-GeV protons on a beryllium target. The hyperons were detected at a fixed angle of 7.2 mrad and in the momentum range from 50 to 300 GeV/c for Λ0 and 50 to 200 GeV/c for Λ0. The Λ0 polarization agrees with that measured at 24 and 300 GeV and is - 0.24 ± 0.04 at pT=2.1 GeV/c. The Λ̄0 polarization is zero up to pT=1.2 GeV/c.

AB - We have measured the polarization of 3×10;6 Λ0 and 2.5×105 Λ̄0 hyperons produced by 400-GeV protons on a beryllium target. The hyperons were detected at a fixed angle of 7.2 mrad and in the momentum range from 50 to 300 GeV/c for Λ0 and 50 to 200 GeV/c for Λ0. The Λ0 polarization agrees with that measured at 24 and 300 GeV and is - 0.24 ± 0.04 at pT=2.1 GeV/c. The Λ̄0 polarization is zero up to pT=1.2 GeV/c.

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VL - 41

SP - 607

EP - 611

JO - Physical review letters

JF - Physical review letters

IS - 9

ER -

Polarization of Λ's and Λ̄'s produced by 400-GeV protons

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