Acceleration of polarized protons to 22 GeV/c and the measurement of spin-spin effects in p+p p+p

F. Z. Khiari; P. R. Cameron; G. R. Court; D. G. Crabb; M. Fujisaki; I. Gialas; P. H. Hansen; M. E. Hejazifar; A. D. Krisch; A. M.T. Lin; S. L. Linn; D. C. Peaslee; R. S. Raymond; R. R. Raylman; T. Roser; T. Shima; K. M. Terwilliger; L. A. Ahrens; J. G. Alessi; H. N. Brown; K. A. Brown; E. D. Courant; G. T. Danby; S. Giordano; H. J. Halama; A. Kponou; R. Lambiase; S. Y. Lee; Y. Y. Lee; R. E. Lockey; Y. I. Makdisi; P. A. Montemurro; R. J. Nawrocky; L. G. Ratner; J. F. Skelly; T. J. Sluyters; A. Soukas; S. Tepikian; R. L. Witkover; J. B. Roberts; G. C. Phillips; V. W. Hughes; P. Scḧler; J. A. Bywater; R. L. Martin; J. R. Ofallon; T. S. Bhatia; L. C. Northcliffe; M. Simonius

doi:10.1103/PhysRevD.39.45

Acceleration of polarized protons to 22 GeV/c and the measurement of spin-spin effects in p+p p+p

F. Z. Khiari^*
, P. R. Cameron
, G. R. Court
, D. G. Crabb
, M. Fujisaki
, I. Gialas
, P. H. Hansen
, M. E. Hejazifar
, A. D. Krisch
, A. M.T. Lin
, S. L. Linn
, D. C. Peaslee
, R. S. Raymond
, R. R. Raylman
, T. Roser
, T. Shima
, K. M. Terwilliger
, L. A. Ahrens
, J. G. Alessi
, H. N. Brown

K. A. Brown, E. D. Courant, G. T. Danby, S. Giordano, H. J. Halama, A. Kponou, R. Lambiase, S. Y. Lee, Y. Y. Lee, R. E. Lockey, Y. I. Makdisi, P. A. Montemurro, R. J. Nawrocky, L. G. Ratner, J. F. Skelly, T. J. Sluyters, A. Soukas, S. Tepikian, R. L. Witkover, J. B. Roberts, G. C. Phillips, V. W. Hughes, P. Scḧler, J. A. Bywater, R. L. Martin, J. R. Ofallon, T. S. Bhatia, L. C. Northcliffe, M. Simonius

^*Corresponding author for this work

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

78 Scopus citations

Abstract

Accelerating polarized protons to 22 GeV/c at the Brookhaven Alternating Gradient Synchro- tron required both extensive hardware modifications and a difficult commissioning process. We had to overcome 45 strong depolarizing resonances to maintain polarization up to 22 GeV/c in this strong-focusing synchrotron. At 18.5 GeV/c we measured the analyzing power A and the spin-spin correlation parameter Ann in large- P2 proton-proton elastic scattering, using the polarized proton beam and a polarized proton target. We also obtained a high-precision measurement of A at P2=0.3 (GeV/c)2 at 13.3 GeV/c. At 18.5 GeV/c we found that Ann=(-2±16)% at P2=4.7 (GeV/c)2, where it was about 60% near 12 GeV at the Argonne Zero Gradient Synchrotron. This sharp change suggests that spin-spin forces may have a strong and unexpected energy dependence at high P2.

Original language	English
Pages (from-to)	45-85
Number of pages	41
Journal	Physical Review D
Volume	39
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevD.39.45
State	Published - 1989
Externally published	Yes

ASJC Scopus subject areas

Nuclear and High Energy Physics

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Khiari, F. Z., Cameron, P. R., Court, G. R., Crabb, D. G., Fujisaki, M., Gialas, I., Hansen, P. H., Hejazifar, M. E., Krisch, A. D., Lin, A. M. T., Linn, S. L., Peaslee, D. C., Raymond, R. S., Raylman, R. R., Roser, T., Shima, T., Terwilliger, K. M., Ahrens, L. A., Alessi, J. G., ... Simonius, M. (1989). Acceleration of polarized protons to 22 GeV/c and the measurement of spin-spin effects in p+p p+p. Physical Review D, 39(1), 45-85. https://doi.org/10.1103/PhysRevD.39.45

@article{bce5c4118e2e42f385df710104fabe5d,

title = "Acceleration of polarized protons to 22 GeV/c and the measurement of spin-spin effects in p+p p+p",

abstract = "Accelerating polarized protons to 22 GeV/c at the Brookhaven Alternating Gradient Synchro- tron required both extensive hardware modifications and a difficult commissioning process. We had to overcome 45 strong depolarizing resonances to maintain polarization up to 22 GeV/c in this strong-focusing synchrotron. At 18.5 GeV/c we measured the analyzing power A and the spin-spin correlation parameter Ann in large- P2 proton-proton elastic scattering, using the polarized proton beam and a polarized proton target. We also obtained a high-precision measurement of A at P2=0.3 (GeV/c)2 at 13.3 GeV/c. At 18.5 GeV/c we found that Ann=(-2±16)\% at P2=4.7 (GeV/c)2, where it was about 60\% near 12 GeV at the Argonne Zero Gradient Synchrotron. This sharp change suggests that spin-spin forces may have a strong and unexpected energy dependence at high P2.",

author = "Khiari, \{F. Z.\} and Cameron, \{P. R.\} and Court, \{G. R.\} and Crabb, \{D. G.\} and M. Fujisaki and I. Gialas and Hansen, \{P. H.\} and Hejazifar, \{M. E.\} and Krisch, \{A. D.\} and Lin, \{A. M.T.\} and Linn, \{S. L.\} and Peaslee, \{D. C.\} and Raymond, \{R. S.\} and Raylman, \{R. R.\} and T. Roser and T. Shima and Terwilliger, \{K. M.\} and Ahrens, \{L. A.\} and Alessi, \{J. G.\} and Brown, \{H. N.\} and Brown, \{K. A.\} and Courant, \{E. D.\} and Danby, \{G. T.\} and S. Giordano and Halama, \{H. J.\} and A. Kponou and R. Lambiase and Lee, \{S. Y.\} and Lee, \{Y. Y.\} and Lockey, \{R. E.\} and Makdisi, \{Y. I.\} and Montemurro, \{P. A.\} and Nawrocky, \{R. J.\} and Ratner, \{L. G.\} and Skelly, \{J. F.\} and Sluyters, \{T. J.\} and A. Soukas and S. Tepikian and Witkover, \{R. L.\} and Roberts, \{J. B.\} and Phillips, \{G. C.\} and Hughes, \{V. W.\} and P. Scḧler and Bywater, \{J. A.\} and Martin, \{R. L.\} and Ofallon, \{J. R.\} and Bhatia, \{T. S.\} and Northcliffe, \{L. C.\} and M. Simonius",

year = "1989",

doi = "10.1103/PhysRevD.39.45",

language = "English",

volume = "39",

pages = "45--85",

journal = "Physical Review D",

issn = "0556-2821",

publisher = "American Institute of Physics",

number = "1",

}

Khiari, FZ, Cameron, PR, Court, GR, Crabb, DG, Fujisaki, M, Gialas, I, Hansen, PH, Hejazifar, ME, Krisch, AD, Lin, AMT, Linn, SL, Peaslee, DC, Raymond, RS, Raylman, RR, Roser, T, Shima, T, Terwilliger, KM, Ahrens, LA, Alessi, JG, Brown, HN, Brown, KA, Courant, ED, Danby, GT, Giordano, S, Halama, HJ, Kponou, A, Lambiase, R, Lee, SY, Lee, YY, Lockey, RE, Makdisi, YI, Montemurro, PA, Nawrocky, RJ, Ratner, LG, Skelly, JF, Sluyters, TJ, Soukas, A, Tepikian, S, Witkover, RL, Roberts, JB, Phillips, GC, Hughes, VW, Scḧler, P, Bywater, JA, Martin, RL, Ofallon, JR, Bhatia, TS, Northcliffe, LC & Simonius, M 1989, 'Acceleration of polarized protons to 22 GeV/c and the measurement of spin-spin effects in p+p p+p', Physical Review D, vol. 39, no. 1, pp. 45-85. https://doi.org/10.1103/PhysRevD.39.45

TY - JOUR

T1 - Acceleration of polarized protons to 22 GeV/c and the measurement of spin-spin effects in p+p p+p

AU - Khiari, F. Z.

AU - Cameron, P. R.

AU - Court, G. R.

AU - Crabb, D. G.

AU - Fujisaki, M.

AU - Gialas, I.

AU - Hansen, P. H.

AU - Hejazifar, M. E.

AU - Krisch, A. D.

AU - Lin, A. M.T.

AU - Linn, S. L.

AU - Peaslee, D. C.

AU - Raymond, R. S.

AU - Raylman, R. R.

AU - Roser, T.

AU - Shima, T.

AU - Terwilliger, K. M.

AU - Ahrens, L. A.

AU - Alessi, J. G.

AU - Brown, H. N.

AU - Brown, K. A.

AU - Courant, E. D.

AU - Danby, G. T.

AU - Giordano, S.

AU - Halama, H. J.

AU - Kponou, A.

AU - Lambiase, R.

AU - Lee, S. Y.

AU - Lee, Y. Y.

AU - Lockey, R. E.

AU - Makdisi, Y. I.

AU - Montemurro, P. A.

AU - Nawrocky, R. J.

AU - Ratner, L. G.

AU - Skelly, J. F.

AU - Sluyters, T. J.

AU - Soukas, A.

AU - Tepikian, S.

AU - Witkover, R. L.

AU - Roberts, J. B.

AU - Phillips, G. C.

AU - Hughes, V. W.

AU - Scḧler, P.

AU - Bywater, J. A.

AU - Martin, R. L.

AU - Ofallon, J. R.

AU - Bhatia, T. S.

AU - Northcliffe, L. C.

AU - Simonius, M.

PY - 1989

Y1 - 1989

N2 - Accelerating polarized protons to 22 GeV/c at the Brookhaven Alternating Gradient Synchro- tron required both extensive hardware modifications and a difficult commissioning process. We had to overcome 45 strong depolarizing resonances to maintain polarization up to 22 GeV/c in this strong-focusing synchrotron. At 18.5 GeV/c we measured the analyzing power A and the spin-spin correlation parameter Ann in large- P2 proton-proton elastic scattering, using the polarized proton beam and a polarized proton target. We also obtained a high-precision measurement of A at P2=0.3 (GeV/c)2 at 13.3 GeV/c. At 18.5 GeV/c we found that Ann=(-2±16)% at P2=4.7 (GeV/c)2, where it was about 60% near 12 GeV at the Argonne Zero Gradient Synchrotron. This sharp change suggests that spin-spin forces may have a strong and unexpected energy dependence at high P2.

AB - Accelerating polarized protons to 22 GeV/c at the Brookhaven Alternating Gradient Synchro- tron required both extensive hardware modifications and a difficult commissioning process. We had to overcome 45 strong depolarizing resonances to maintain polarization up to 22 GeV/c in this strong-focusing synchrotron. At 18.5 GeV/c we measured the analyzing power A and the spin-spin correlation parameter Ann in large- P2 proton-proton elastic scattering, using the polarized proton beam and a polarized proton target. We also obtained a high-precision measurement of A at P2=0.3 (GeV/c)2 at 13.3 GeV/c. At 18.5 GeV/c we found that Ann=(-2±16)% at P2=4.7 (GeV/c)2, where it was about 60% near 12 GeV at the Argonne Zero Gradient Synchrotron. This sharp change suggests that spin-spin forces may have a strong and unexpected energy dependence at high P2.

UR - https://www.scopus.com/pages/publications/0002045135

U2 - 10.1103/PhysRevD.39.45

DO - 10.1103/PhysRevD.39.45

M3 - Article

AN - SCOPUS:0002045135

SN - 0556-2821

VL - 39

SP - 45

EP - 85

JO - Physical Review D

JF - Physical Review D

IS - 1

ER -

Acceleration of polarized protons to 22 GeV/c and the measurement of spin-spin effects in p+p p+p

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