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)

Research output: Contribution to journal › Article › peer-review

160 Scopus citations

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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@article{d84a92ba602041e8bf8b91a0b30d9f74,

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",

language = "English (US)",

volume = "41",

pages = "607--611",

journal = "Physical review letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "9",

}

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.

UR - https://www.scopus.com/pages/publications/0001040941

UR - https://www.scopus.com/pages/publications/0001040941#tab=citedBy

U2 - 10.1103/PhysRevLett.41.607

DO - 10.1103/PhysRevLett.41.607

M3 - Article

AN - SCOPUS:0001040941

SN - 0031-9007

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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