An analysis on extrema and constrained bounds for the soft pomeron intercept

Luna, E. G. S.; Menon, M. J.; Montanha, J.

doi:10.1016/j.nuclphysa.2004.09.004

Cited by 22 publications

(22 citation statements)

References 22 publications

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“…• The fixed value ǫ = 0.080 for the soft Pomeron intercept is consistent with all phenomenological analyses of the elastic hadron scattering, in particular with those treating constraint and extrema bounds [44,45].…”

supporting

confidence: 77%

Aspects of a dynamical gluon mass approach to elastic hadron scattering at LHC

Fagundes¹,

Luna²,

Menon³

et al. 2012

Nuclear Physics A

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We discuss how the main features of the recent LHC data on elastic scattering can be described by a QCD-inspired formalism with a dynamical infrared mass scale. For this purpose new developments on a dynamical gluon mass approach are reported, with emphasis on a method to estimate uncertainty bounds in the predictions for the high-energy scattering observables. We investigate the effects due to the correlations among the fixed and free parameters involved and show that the band of predictions are consistent with the recent data from the TOTEM experiment, including the forward quantities and the differential cross section up to the dip position.

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supporting

confidence: 77%

Aspects of a dynamical gluon mass approach to elastic hadron scattering at LHC

Fagundes¹,

Luna²,

Menon³

et al. 2012

Nuclear Physics A

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“…Recently, by means of an extended Regge model, some authors have determined the bounds for the soft Pomeron intercept imposed by the accelerator and cosmic ray data currently available [24,25]. These results are consistent with a Pomeron intercept J = 1.085…”

Section: Dynamical Gluon Mass and Qcd-inspired Eikonal Modelsmentioning

confidence: 64%

Influence of a dynamical gluon mass in theppandp¯pforward scattering

et al. 2005

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We compute the tree level cross section for gluon-gluon elastic scattering taking into account a dynamical gluon mass, and show that this mass scale is a natural regulator for this subprocess cross section. Using an eikonal approach in order to examine the relationship between this gluon-gluon scattering and the elastic pp andpp channels, we found that the dynamical gluon mass is of the same order of magnitude as the ad hoc infrared mass scale m 0 underlying eikonalized QCD-inspired models. We argue that this correspondence is not an accidental result, and that this dynamical scale indeed represents the onset of nonperturbative contributions to the elastic hadron-hadron scattering. We apply the eikonal model with a dynamical infrared mass scale to obtain predictions for σ pp,pp tot , ρ pp,pp , slope B pp,pp , and differential elastic scattering cross section dσp p /dt at Tevatron and CERN-LHC energies.

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“…We have also obtained new constrained bounds for the Pomeron intercept from spectroscopy data (Chew-Frautschi plots) and have extended the analysis to baryon-p, meson-p, baryon-n, meson-n, gamma-p and gamma-gamma scattering [22]. It is also presented tests on factorization and quark counting rules with both extrema and constrained bounds (asymptotic energy region).…”

Section: Extrema Bounds For the Pomeron Interceptmentioning

confidence: 99%

“…In particular, at 14 TeV (CERN LHC) the extrema and constrained bounds allow to infer σ tot = 114 ± 25 mb and 105 ± 10 mb, respectively. [22].…”

Section: Extrema Bounds For the Pomeron Interceptmentioning

confidence: 99%

“…-Eikonal in the momentum transfer space By means of the Fourier transform, Eqs. (7)(8), the parametrization (21)(22) provides analytical expressions for the real and imaginary parts of the Profile function, Γ R (s, b) and Γ I (s, b), and also the associated uncertainties. From the fit results, together with error propagation, we have found that…”

Section: Unconstrained Fits and The Eikonalmentioning

confidence: 99%

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Topics on high-energy elastic hadron scattering

Menon¹

2005

Braz. J. Phys.

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We review the main results we have obtained in the area of high-energy elastic hadron scattering and presented in this series of Workshops on Hadron Interactions. After an introduction to some basic experimental and theoretical concepts, we survey the results reached by means of four approaches: analytic models, modelindependent analyses, eikonal models and nonperturbative QCD. Some of the ongoing researches and future perspectives are also outlined.

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An analysis on extrema and constrained bounds for the soft pomeron intercept

Cited by 22 publications

References 22 publications

Aspects of a dynamical gluon mass approach to elastic hadron scattering at LHC

Aspects of a dynamical gluon mass approach to elastic hadron scattering at LHC

Influence of a dynamical gluon mass in theppandp¯pforward scattering

Topics on high-energy elastic hadron scattering

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