Comparison of small-angle pp̄ and pp elastic scattering at 52.8 GeV center-of-mass energy at the CERN intersecting storage rings

Amos, N.; Block, M. M.; Bobbink, G. J.; Botje, M.; Debaisieux, J.; Favart, D.; Leroy, C.; Linde, F.; Lipnik, P.; Matheys, J.P.; Miller, Donald H.; Potter, K.; Velde-Wilquet, C. Vander; Zucchelli, S.

doi:10.1016/0370-2693(83)90487-2

Cited by 38 publications

(2 citation statements)

References 25 publications

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“…At low |t| ∼ (0.01 -0.5) GeV 2 (already dominated by nuclear scattering), the differential pp cross-section showed an approximately exponential behaviour, e −B |t| , where B is the slope parameter, followed by a diffractive minimum (the "dip"), at |t| ≈ 1.4 GeV 2 , and subsequently a broad peak. In pp scattering [3,4,5,6,7] the dip is replaced by a shoulder at approximately the same |t| position where the pp data have the minimum. At larger |t|, dσ /dt for pp was found to decrease according to |t| −n with n ≈ 8 [8].…”

Section: Introductionmentioning

confidence: 99%

Proton-proton elastic scattering at the LHC energy of \chem{\sqrt{s} = 7\,TeV}

Antchev¹,

Aspell

Atanassov

et al. 2011

EPL

166

122

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Proton-proton elastic scattering has been measured by the TOTEM experiment at the CERN Large Hadron Collider at √ s = 7 TeV in dedicated runs with the Roman Pot detectors placed as close as seven times the transverse beam size (σ beam ) from the outgoing beams. After careful study of the accelerator optics and the detector alignment, |t| , the square of four-momentum transferred in the elastic scattering process, has been determined with an uncertainty of δt = 0.1 GeV |t|. In this letter, first results of the differential cross section are presented covering a |t|-range from 0.36 to 2.5 GeV 2 . The differential cross-section in the range 0.36 < |t| < 0.47 GeV 2 is described by an exponential with a slope parameter B = (23.6 ± 0.5 stat ± 0.4 syst ) GeV −2 , followed by a significant diffractive minimum at |t| = (0.53 ± 0.01 stat ± 0.01 syst ) GeV 2 . For |t|-values larger than ∼ 1.5 GeV 2 , the cross-section exhibits a power law behaviour with an exponent of -7.8 ± 0.3 stat ± 0.1 syst . When compared to predictions based on the different available models, the data show a strong discriminative power despite the small t-range covered.

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Section: Introductionmentioning

confidence: 99%

Proton-proton elastic scattering at the LHC energy of \chem{\sqrt{s} = 7\,TeV}

Antchev¹,

Aspell

Atanassov

et al. 2011

EPL

166

122

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“…In figure 2 we show the geometrical scaling plot (see (11)) of dσ dt dσ dt (t = 0) as a function of the variable |t|σ tot. for different values of R and for γ = 1 mb 1/2 , and the black disc limit.…”

Section: At High Energymentioning

confidence: 99%

Evolution equation for soft physics at high energy

Brogueira¹,

Deus²

2010

J. Phys. G: Nucl. Part. Phys.

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Based on the non-linear logistic equation we study, in a qualitative and semi-quantitative way, the evolution with energy and saturation of the elastic differential cross-section in pp(pp) collisions at high energy. Geometrical scaling occurs at the black disk limit, and scaling develops first for small values of the scaling variable |t|σ tot. . Our prediction for dσ/ dt at LHC, with two zeros and a minimum at large |t| differs, as far as we know, from all existing ones.

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Results from Experiments at the C.E.R.N. Antiproton-Proton Collider

Strauss

1985

Nucleon-Nucleon and Nucleon-Antinucleon Interactions

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Comparison of small-angle pp̄ and pp elastic scattering at 52.8 GeV center-of-mass energy at the CERN intersecting storage rings

Cited by 38 publications

References 25 publications

Proton-proton elastic scattering at the LHC energy of \chem{\sqrt{s} = 7\,TeV}

Proton-proton elastic scattering at the LHC energy of \chem{\sqrt{s} = 7\,TeV}

Evolution equation for soft physics at high energy

Results from Experiments at the C.E.R.N. Antiproton-Proton Collider

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