Polarization of Σ0 hyperons in inclusive production from 28.5 GeV/c protons on beryllium

Edmond C. Dukes; Oliver E. Overseth; Gerry M. Bunce; Yousef Makdisi; Peter Yamin; Douglas A. Jensen; Michael N. Kreisler; Martin Marcin; Kamal K. Raychaudhuri; Marilyn W. Sullivan; Kenneth Heller; Mike Shupe

doi:10.1016/0370-2693(87)90471-0

Polarization of Σ⁰ hyperons in inclusive production from 28.5 GeV/c protons on beryllium

Edmond C. Dukes, Oliver E. Overseth, Gerry M. Bunce, Yousef Makdisi, Peter Yamin, Douglas A. Jensen, Michael N. Kreisler, Martin Marcin, Kamal K. Raychaudhuri, Marilyn W. Sullivan, Kenneth Heller, Mike Shupe

Physics and Astronomy (Twin Cities)

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Abstract

The polarization of Σ⁰ hyperons produced in an inclusive reactons hasbeen measured for the first time. From a sample of 11 000 events produced by 28.5 GeV/c ptorons in the reaction p+Be→Σ⁰+X, the Σ⁰ polarization has a value of +0.28±0.13 at p_t=1.01 GeV/c and x_f=0.60. The polarization of 53 000 Λ hyperons produced from 28.5 Gev/c protons inthe reaction p+Be→Λ+X has been measured in the kinematic range 0.64<p_t<1.14 GeV/c and 0.42<x_f<0.62. The average Λ polarization is found to be -0.188±0.024, consistent with previous results.

Original language	English (US)
Pages (from-to)	135-139
Number of pages	5
Journal	Physics Letters B
Volume	193
Issue number	1
DOIs	https://doi.org/10.1016/0370-2693(87)90471-0
State	Published - Jul 9 1987

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title = "Polarization of Σ0 hyperons in inclusive production from 28.5 GeV/c protons on beryllium",

abstract = "The polarization of Σ0 hyperons produced in an inclusive reactons hasbeen measured for the first time. From a sample of 11 000 events produced by 28.5 GeV/c ptorons in the reaction p+Be→Σ0+X, the Σ0 polarization has a value of +0.28±0.13 at pt=1.01 GeV/c and xf=0.60. The polarization of 53 000 Λ hyperons produced from 28.5 Gev/c protons inthe reaction p+Be→Λ+X has been measured in the kinematic range 0.64t<1.14 GeV/c and 0.42f<0.62. The average Λ polarization is found to be -0.188±0.024, consistent with previous results.",

author = "Dukes, {Edmond C.} and Overseth, {Oliver E.} and Bunce, {Gerry M.} and Yousef Makdisi and Peter Yamin and Jensen, {Douglas A.} and Kreisler, {Michael N.} and Martin Marcin and Raychaudhuri, {Kamal K.} and Sullivan, {Marilyn W.} and Kenneth Heller and Mike Shupe",

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doi = "10.1016/0370-2693(87)90471-0",

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T1 - Polarization of Σ0 hyperons in inclusive production from 28.5 GeV/c protons on beryllium

AU - Dukes, Edmond C.

AU - Overseth, Oliver E.

AU - Bunce, Gerry M.

AU - Makdisi, Yousef

AU - Yamin, Peter

AU - Jensen, Douglas A.

AU - Kreisler, Michael N.

AU - Marcin, Martin

AU - Raychaudhuri, Kamal K.

AU - Sullivan, Marilyn W.

AU - Heller, Kenneth

AU - Shupe, Mike

PY - 1987/7/9

Y1 - 1987/7/9

N2 - The polarization of Σ0 hyperons produced in an inclusive reactons hasbeen measured for the first time. From a sample of 11 000 events produced by 28.5 GeV/c ptorons in the reaction p+Be→Σ0+X, the Σ0 polarization has a value of +0.28±0.13 at pt=1.01 GeV/c and xf=0.60. The polarization of 53 000 Λ hyperons produced from 28.5 Gev/c protons inthe reaction p+Be→Λ+X has been measured in the kinematic range 0.64t<1.14 GeV/c and 0.42f<0.62. The average Λ polarization is found to be -0.188±0.024, consistent with previous results.

AB - The polarization of Σ0 hyperons produced in an inclusive reactons hasbeen measured for the first time. From a sample of 11 000 events produced by 28.5 GeV/c ptorons in the reaction p+Be→Σ0+X, the Σ0 polarization has a value of +0.28±0.13 at pt=1.01 GeV/c and xf=0.60. The polarization of 53 000 Λ hyperons produced from 28.5 Gev/c protons inthe reaction p+Be→Λ+X has been measured in the kinematic range 0.64t<1.14 GeV/c and 0.42f<0.62. The average Λ polarization is found to be -0.188±0.024, consistent with previous results.

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EP - 139

JO - Physics Letters B

JF - Physics Letters B

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Polarization of Σ⁰ hyperons in inclusive production from 28.5 GeV/c protons on beryllium

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