Erratum: High-energy forward scattering and the Pomeron: Simple pole versus unitarized models [Phys. Rev. D<b>61</b>, 034019 (2000)]

Cudell, Jean-René; Ежела, В. В.; Kang, K.; Lugovsky, S. B.; Ткаченко, Н. П.

doi:10.1103/physrevd.63.059901

Cited by 57 publications

(94 citation statements)

References 10 publications

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“…For example, the recent fit of [75] leads to This value agrees with a cosmic-ray measurement [76]. Note that the conflict between the three Tevatron data points [77] leads to substantial uncertainty in these fits.…”

Section: Small-t Elastic Scattering and The Soft Pomeronsupporting

confidence: 69%

A full-acceptance detector at the LHC (FELIX)

Ageev¹,

Akhobadze²,

Alvero³

et al. 2002

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

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The FELIX collaboration had proposed the construction of a full-acceptance detector for the LHC. The primary mission of FELIX was the study of QCD: to provide comprehensive and definitive observations of a very broad range of strong-interaction processes. This document contains an extensive discussion of this physics menu. In a further paper the FELIX detector will be reviewed. Contents HISTORYWith the advent of the large hadron collider (LHC), we are on the threshold of a new era in high-energy physics. With instrumentation in the form of dedicated experiments of unprecedented precision and complexity, the LHC will move significantly beyond the current high-energy frontier, and dramatically improve our understanding of particle physics at the highest energies and shortest distances accessible to man.As currently planned, however, the LHC experimental programme is incomplete. Moreover, these deficiencies continue and extend what has been a gap in the experimental programme of all hadron colliders. The problem lies in the design of the detectors instrumenting hadron colliders: they are all optimized for rare, high-pt events. These 'general purpose' detectors are anything but that. Rather, they are designed to explore extreme shortdistance phenomena. Without intending to demean the efforts of the collaborations which have built or are building these detectors, it is nevertheless these events in which the theorists are most confident that they understand the physics, and are in many ways experimentally most accessible.While there is no doubt that such physics and such detectors should be the centrepiece of any programme of hadron collider physics, it seems much less clear that they should be the only item on the agenda. Indeed, it can be argued that a full-acceptance detector, capable of detecting and measuring each particle in an event well, may have the greatest discovery potential. Alas, the absence of any experimental effort in this direction in the collider era has meant that both theoretical investigations and experimental design of such detectors has languished, to the point that many in the community have come to think of high-pt physics as the last frontier in particle physics.The FELIX collaboration sought to rectify this situation. With support from the CERN administration, some 160 physicists collaborated in preparing the FELIX LoI. Many of these could not officially join the collaboration, and so their help could only be acknowledged. While the FELIX proposal was never officially killed, it was nevertheless effectively killed without the collaboration making a formal presentation to the LHC committee.All of this, of course, is history, and not very pleasant history at that. The motivation for a full-acceptance detector remains, however, and interest on the part of the broader community, despite the implications of this history, remains high. Because of this, the FELIX collaboration, together with those who helped but were not members, believes that it is important to document the physics of a ...

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Section: Small-t Elastic Scattering and The Soft Pomeronsupporting

confidence: 69%

A full-acceptance detector at the LHC (FELIX)

Ageev¹,

Akhobadze²,

Alvero³

et al. 2002

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

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“…Above the resonance region, σ T is slowly decreasing towards a minimum of about 115 µb at W ≈ 10 GeV. At the highest energies, W ≈ 200 GeV (corresponding to ν ≃ 2 · 10 4 GeV), the experiments show a slow increase with energy of the form σ T ∼ W 0.2 (Aid et al, 1995;Derrick et al, 1994), in accordance with Regge parametrizations through a soft pomeron exchange mechanism (Cudell et al, 2000). Given this information, the rhs of Eq.…”

Section: Photoabsorption Cross Sections For the Protonmentioning

confidence: 55%

Hadron structure at lowQ2

Drechsel

Walcher

2008

Rev. Mod. Phys.

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This review deals with the structure of hadrons, strongly interacting many-body systems consisting of quarks and gluons. These systems have a size of about 1 fm, which shows up in scattering experiments at low momentum transfers Q in the GeV region. At this scale the running coupling constant of Quantum Chromodynamics (QCD), the established theory of the strong interactions, becomes divergent. It is therefore highly intriguing to explore this theory in the realm of its strong interaction regime. However, the quarks and gluons can not be resolved at the GeV scale but have to be studied through their manifestations in the bound many-body systems, for instance pions, nucleons and their resonances. The review starts with a short overview of QCD at low momentum transfer and a summary of the theoretical apparatus describing the interaction of hadrons with electrons and photons. In the following sections we present the experimental results for the most significant observables studied with the electromagnetic probe: form factors, polarizabilities, excitation spectra, and sum rules. These experimental findings are compared and interpreted with various theoretical approaches to QCD, such as phenomenological models with quarks and pions, dispersion relations as a means to connect observables from different experiments, and, directly based on the QCD lagrangian, chiral perturbation theory and lattice gauge theory.

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“…The choice for the minimal energy at 10 GeV was based on an analysis showing that the parameters of Regge fits are stable for a cutoff at √ s ≈ 9 GeV [8].…”

Section: Extrema Boundsmentioning

confidence: 99%

“…More recently, new data analyzes with extended models that allow the splitting of the Reggeon trajectories (non-degenerate C = +1 and C = −1 meson trajectories) or using different estimations for σ tot from cosmic-ray experiments, have indicated larger values for the Pomeron intercept, namely 1.09 -1.12 [6,7,8,9]. In general these analyzes are characterized by global fits of the Pomeron/Reggeon parameters to the forward scattering data, that is, without using as input the fitted trajectories from the Chew-Frautschi plots.…”

Section: Introductionmentioning

confidence: 99%

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

2004

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We investigate some aspects and consequences of the extrema bounds for the soft Pomeron intercept, recently determined by means of global fits to pp andpp total cross section data at both accelerator and cosmic-ray energy regions (scattering data). We also examine the effects of the secondary Reggeons by introducing fitted trajectories from Chew-Frautschi plots (spectroscopy data) and determining new constrained bounds for the Pomeron intercept. In both cases we extend the analysis to baryon − p, meson − p, baryon − n, meson − n, gamma − p and gamma − gamma scattering, presenting tests on factorization and quark counting rules. We show that in all the cases investigated, the bounds lead to good descriptions of the bulk of experimental data on the total cross sections, but with different extrapolations to higher energies. Our main conclusion is that the experimental information presently available on the above quantities is not sensitive to an uncertainty of 2% in the value of the soft Pomeron intercept. At 14 TeV (CERN LHC) the extrema and constrained bounds allow to infer σ tot = 114 ± 25 mb and 105 ± 10 mb, respectively.

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Erratum: High-energy forward scattering and the Pomeron: Simple pole versus unitarized models [Phys. Rev. D61, 034019 (2000)]

Cited by 57 publications

References 10 publications

A full-acceptance detector at the LHC (FELIX)

A full-acceptance detector at the LHC (FELIX)

Hadron structure at lowQ2

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

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