Precise comparison of antiproton-proton and proton-proton forward elastic scattering at √s = 24.3 GeV

R. E. Breedon; T. J. Chapin; R. L. Cool; P. T. Cox; K. Goulianos; P. C. Petersen; R. W. Rusack; G. R. Snow; A. Vacghi; S. N. White; L. Camilleri; L. Dick; J. B. Jeanneret; W. Kubischra; G. Von Dardel; A. Bernasconi; B. Gabioud; F. Gaille; C. Joseph; J. F. Loude; E. Malamud; C. Morel; J. P. Perroud; D. Steiner; G. Sozzi; M. T. Tran; E. C. Dukes; O. E. Overseth; G. Valenti

doi:10.1016/0370-2693(89)91150-7

Precise comparison of antiproton-proton and proton-proton forward elastic scattering at √s = 24.3 GeV

R. E. Breedon, T. J. Chapin, R. L. Cool, P. T. Cox, K. Goulianos, P. C. Petersen, R. W. Rusack, G. R. Snow, A. Vacghi, S. N. White, L. Camilleri, L. Dick, J. B. Jeanneret, W. Kubischra, G. Von Dardel, A. Bernasconi, B. Gabioud, F. Gaille, C. Joseph, J. F. LoudeE. Malamud, C. Morel, J. P. Perroud, D. Steiner, G. Sozzi, M. T. Tran, E. C. Dukes, O. E. Overseth, G. Valenti

Physics and Astronomy (Twin Cities)

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Abstract

We report results from a measurement of antiproton-proton and proton-proton small-angle elastic scattering at √s = 24.3 GeV in the range 0.001 ≤ |t | ≤ 0.06 (GeV/c)². The measurement was performed at the CERN pp Collider by using silicon detectors to observe protons recoiling from a hydrogen cluster-jet target intercepting the stored p and p beams. Fits to the measured differential cross sections yield the ratio of the real to the imaginary part of the forward nuclear scattering amplitude ρ and the nuclear slope parameter b for both pp and pp. We find that the difference Δρ = ρ (pp) - ρ(pp) = 0.031 ± 0.010 agrees with conventional fits and disagrees with the "odderon" fit designed to accommodate the recent UA4 measurement of ρ(pp) at 546 GeV.

Original language	English (US)
Pages (from-to)	459-465
Number of pages	7
Journal	Physics Letters B
Volume	216
Issue number	3-4
DOIs	https://doi.org/10.1016/0370-2693(89)91150-7
State	Published - Jan 12 1989

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Breedon, R. E., Chapin, T. J., Cool, R. L., Cox, P. T., Goulianos, K., Petersen, P. C., Rusack, R. W., Snow, G. R., Vacghi, A., White, S. N., Camilleri, L., Dick, L., Jeanneret, J. B., Kubischra, W., Von Dardel, G., Bernasconi, A., Gabioud, B., Gaille, F., Joseph, C., ... Valenti, G. (1989). Precise comparison of antiproton-proton and proton-proton forward elastic scattering at √s = 24.3 GeV. Physics Letters B, 216(3-4), 459-465. https://doi.org/10.1016/0370-2693(89)91150-7

Breedon, RE, Chapin, TJ, Cool, RL, Cox, PT, Goulianos, K, Petersen, PC, Rusack, RW, Snow, GR, Vacghi, A, White, SN, Camilleri, L, Dick, L, Jeanneret, JB, Kubischra, W, Von Dardel, G, Bernasconi, A, Gabioud, B, Gaille, F, Joseph, C, Loude, JF, Malamud, E, Morel, C, Perroud, JP, Steiner, D, Sozzi, G, Tran, MT, Dukes, EC, Overseth, OE & Valenti, G 1989, 'Precise comparison of antiproton-proton and proton-proton forward elastic scattering at √s = 24.3 GeV', Physics Letters B, vol. 216, no. 3-4, pp. 459-465. https://doi.org/10.1016/0370-2693(89)91150-7

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title = "Precise comparison of antiproton-proton and proton-proton forward elastic scattering at √s = 24.3 GeV",

abstract = "We report results from a measurement of antiproton-proton and proton-proton small-angle elastic scattering at √s = 24.3 GeV in the range 0.001 ≤ |t | ≤ 0.06 (GeV/c)2. The measurement was performed at the CERN pp Collider by using silicon detectors to observe protons recoiling from a hydrogen cluster-jet target intercepting the stored p and p beams. Fits to the measured differential cross sections yield the ratio of the real to the imaginary part of the forward nuclear scattering amplitude ρ and the nuclear slope parameter b for both pp and pp. We find that the difference Δρ = ρ (pp) - ρ(pp) = 0.031 ± 0.010 agrees with conventional fits and disagrees with the {"}odderon{"} fit designed to accommodate the recent UA4 measurement of ρ(pp) at 546 GeV.",

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doi = "10.1016/0370-2693(89)91150-7",

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T1 - Precise comparison of antiproton-proton and proton-proton forward elastic scattering at √s = 24.3 GeV

AU - Breedon, R. E.

AU - Chapin, T. J.

AU - Cool, R. L.

AU - Cox, P. T.

AU - Goulianos, K.

AU - Petersen, P. C.

AU - Rusack, R. W.

AU - Snow, G. R.

AU - Vacghi, A.

AU - White, S. N.

AU - Camilleri, L.

AU - Dick, L.

AU - Jeanneret, J. B.

AU - Kubischra, W.

AU - Von Dardel, G.

AU - Bernasconi, A.

AU - Gabioud, B.

AU - Gaille, F.

AU - Joseph, C.

AU - Loude, J. F.

AU - Malamud, E.

AU - Morel, C.

AU - Perroud, J. P.

AU - Steiner, D.

AU - Sozzi, G.

AU - Tran, M. T.

AU - Dukes, E. C.

AU - Overseth, O. E.

AU - Valenti, G.

PY - 1989/1/12

Y1 - 1989/1/12

N2 - We report results from a measurement of antiproton-proton and proton-proton small-angle elastic scattering at √s = 24.3 GeV in the range 0.001 ≤ |t | ≤ 0.06 (GeV/c)2. The measurement was performed at the CERN pp Collider by using silicon detectors to observe protons recoiling from a hydrogen cluster-jet target intercepting the stored p and p beams. Fits to the measured differential cross sections yield the ratio of the real to the imaginary part of the forward nuclear scattering amplitude ρ and the nuclear slope parameter b for both pp and pp. We find that the difference Δρ = ρ (pp) - ρ(pp) = 0.031 ± 0.010 agrees with conventional fits and disagrees with the "odderon" fit designed to accommodate the recent UA4 measurement of ρ(pp) at 546 GeV.

AB - We report results from a measurement of antiproton-proton and proton-proton small-angle elastic scattering at √s = 24.3 GeV in the range 0.001 ≤ |t | ≤ 0.06 (GeV/c)2. The measurement was performed at the CERN pp Collider by using silicon detectors to observe protons recoiling from a hydrogen cluster-jet target intercepting the stored p and p beams. Fits to the measured differential cross sections yield the ratio of the real to the imaginary part of the forward nuclear scattering amplitude ρ and the nuclear slope parameter b for both pp and pp. We find that the difference Δρ = ρ (pp) - ρ(pp) = 0.031 ± 0.010 agrees with conventional fits and disagrees with the "odderon" fit designed to accommodate the recent UA4 measurement of ρ(pp) at 546 GeV.

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U2 - 10.1016/0370-2693(89)91150-7

DO - 10.1016/0370-2693(89)91150-7

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SN - 0370-2693

VL - 216

SP - 459

EP - 465

JO - Physics Letters B

JF - Physics Letters B

IS - 3-4

ER -

Precise comparison of antiproton-proton and proton-proton forward elastic scattering at √s = 24.3 GeV

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