Measurement of ρ, the ratio of the real to the imaginary part of thep¯pforward elastic-scattering amplitude, at √s=1.8 TeV

Amos, N.; Ávila, C.; Baker, W.; Bertani, M.; Block, M. M.; Dimitroyannis, D.; Eartly, D. P.; Giacomelli, G.; Gómez, B.; Goodman, J. A.; Guss, C.; Lennox, A.J.; Mondardini, M.R.; Negret, J. P.; Orear, J.; Pruss, S.; Rubinstein, R.; Sadr, S.; Sanabria, J. C.; Shukla, S.; Spagnoli, M.; Veronesi, Ilaria; Zucchelli, S.

doi:10.1103/physrevlett.68.2433

Cited by 141 publications

(46 citation statements)

References 21 publications

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“…Now we have a large discussion about the value of σ tot at √ s = 1.8 T eV . In [16] it has been found that at this energy σ tot = 72.2mb. Recent results of the CDF Collaboration [17] are…”

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confidence: 85%

Supercritical Pomeron and Eikonal Representation of the Diffraction Scattering Amplitude

1995

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The intercept of the supercritical pomeron is examined with the use of different forms of the scattering amplitudes of the bare pomeron. The one-to-one correspondence between the eikonal phase and the ratio of the elastic and total cross-section is shown. Based on new experimental data of the CDF collaboration, the intercept and power of the logarithmic growth of the bare and total pomeron amplitude are analyzed. It is shown that as a result of the eikonalization procedure, the bare QCD pomeron becomes compatible with experiment.

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confidence: 85%

Supercritical Pomeron and Eikonal Representation of the Diffraction Scattering Amplitude

1995

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“…From Fig. 2, we note that the fit to ρ is anchored at √ s = 550 GeV by the very accurate measurement [12] of UA4/2 and passes through the E710 point [11]. The statistical uncertainty of the fitted parameters is such that at 25 GeV, the cross section predictions are statistically uncertain to ≈ 1.3%, at 500 GeV are uncertain to ≈ 1.6% and at 2000 GeV are uncertain to ≈ 2.5% .…”

Section: Introductionmentioning

confidence: 92%

Photon-proton and photon-photon scattering from nucleon-nucleon forward amplitudes

et al. 1999

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We show that the data on γp and γγ interactions can be derived from the pp andpp forward scattering amplitudes using vector meson dominance and the additive quark model. The nucleon-nucleon data are parameterized using a model where high energy cross sections rise with energy as a consequence of the increasing numbers of soft partons populating the colliding particles. We present detailed descriptions of the data on the total and elastic cross sections, the ratio of the real to imaginary part of the forward scattering amplitude, and on the slope of the differential cross sections for pp,pp, γp, γγ, γp → γV and γγ → V i V j reactions, where V = ρ, ω, φ. We make a wide range of predictions for future HERA and LHC experiments and for γγ measurements at LEP. *

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“…The RFT-based MCs, based on P amplitudes, predict slightly lower values: σ inel = 105.4, 104.8, 103.1 mb for epos-lhc, qgsjet-ii and phojet respectively. The √ s dependence of the inelastic cross section predictions is shown in figure 1 together with the available data from p-p (UA5 [51], E710 [52] and CDF [53]) and p-p (ALICE [54], ATLAS [55,56], CMS [57,58], TOTEM [59][60][61]) colliders, as well as the AUGER result at √ s = 57 TeV derived from cosmic-ray data [62]. Interestingly, all model curves cross at about √ s ≈ 60 TeV, and predict about the same inelastic cross section at the nominal FCC-hh/SppC p-p c.m.…”

Section: Inelastic P-p Cross Sectionmentioning

confidence: 99%

“…The expected increase in the inelastic p-p cross section at 100 TeV is about 45% compared to the LHC results at 13 TeV (σ inel = 73.1 ± 7.7 mb [56], and (preliminary) 71.3 ± 3.5 mb [58]). Experimental data points at various collider and cosmic-ray energies [51][52][53][54][55][56][57][58][59][60][61][62] are compared to the predictions of epos-lhc, qgsjet-ii-04, phojet 1.12, and pythia (both 6.428 and 8.17 predict the same dependence). The red box indicates the average prediction of all models at 100 TeV.…”

Section: Inelastic P-p Cross Sectionmentioning

confidence: 99%

Global properties of proton-proton collisions at s = 100 $$ \sqrt{\mathrm{s}}=100 $$ TeV

d’Enterria

Pierog

2016

J. High Energ. Phys.

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Abstract:The global properties of the final states produced in hadronic interactions of protons at centre-of-mass energies of future hadron colliders (such as FCC-hh at CERN, and SppC in China), are studied. The predictions of various Monte Carlo (MC) event generators used in collider physics (pythia 6, pythia 8, and phojet) and in ultrahighenergy cosmic-rays studies (epos, and qgsjet) are compared. Despite their different underlying modeling of hadronic interactions, their predictions for proton-proton (p-p) collisions at √ s = 100 TeV are quite similar. The average of all MC predictions (except phojet) for the different observables are: (i) p-p inelastic cross sections σ inel = 105 ± 2 mb; (ii) total charged multiplicity N ch = 150 ± 20; (iii) charged particle pseudorapidity density at midrapidity dN ch /dη| η=0 = 9.6 ± 0.2; (iv) energy density at midrapidity dE/dη| η=0 = 13.6 ± 1.5 GeV, and dE/dη| η=5 = 670 ± 70 GeV at the edge of the central region; and (v) average transverse momenta at midrapidities p T = 0.76 ± 0.07 GeV/c. At midrapidity, epos and qgsjet-ii predict larger per-event multiplicity probabilities at very low (N ch < 3) and very high (N ch > 100) particle multiplicities, whereas pythia 6 and 8 feature higher yields in the intermediate region N ch ≈ 30-80. These results provide useful information for the estimation of the detector occupancies and energy deposits from pileup collisions at the expected large FCC-hh/SppC luminosities.

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Measurement of ρ, the ratio of the real to the imaginary part of thep¯pforward elastic-scattering amplitude, at √s=1.8 TeV

Cited by 141 publications

References 21 publications

Supercritical Pomeron and Eikonal Representation of the Diffraction Scattering Amplitude

Supercritical Pomeron and Eikonal Representation of the Diffraction Scattering Amplitude

Photon-proton and photon-photon scattering from nucleon-nucleon forward amplitudes

Global properties of proton-proton collisions at s = 100 $$ \sqrt{\mathrm{s}}=100 $$ TeV

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