The energy dependence of the diffraction minimum in the elastic scattering and new LHC data

Selyugin, O. V.

doi:10.1016/j.nuclphysa.2017.01.002

Cited by 22 publications

(21 citation statements)

References 39 publications

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“…The result depends however on the choice of the odderon, for which many options exist. The problem was studied also by O. Selyugin using the HEGS model [42] predicting that the (dσ el /dt)max(s) (dσ el /dt) min (s) ratio increases at LHC energies. As stressed in the previous paragraph, the behaviour of the ratio (dσ el /dt)max(s) (dσ el /dt) min (s) , explicit for the separate pomeron and odderon contributions, becomes complicated by their interference and depends on the fitted parameters.…”

Section: The Diffraction Minimum and Maximum (Dip-bump)mentioning

confidence: 99%

New physics from TOTEM’s recent measurements of elastic and total cross sections

Szanyi¹,

Bence²,

Jenkovszky³

2019

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

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We analyze the recently discovered phenomena in elastic proton-proton scattering at the LHC, challenging the standard Regge-pole theory: the low-|t| "break" (departure from the exponential behavior of the diffraction cone), the accelerating rise with energy of the forward slope B(s, t = 0), the absence of secondary dips and bumps on the cone and the role of the odderon in the forward phase of the amplitude, ρ(13 T eV ) = 0.1 ± 0.01, and especially its contribution at the dip region, measured recently by TOTEM. Relative contributions from different components to the scattering amplitude are evaluated from the fitted model.

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Section: The Diffraction Minimum and Maximum (Dip-bump)mentioning

confidence: 99%

New physics from TOTEM’s recent measurements of elastic and total cross sections

Szanyi¹,

Bence²,

Jenkovszky³

2019

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

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“…They note that at LHC energies the exponential behaviour of dσ/dt is no longer valid. A different set of parametrisation has been considered in [328][329][330] that includes Coulomb interference region as well as large t values, in terms of about 10 parameters.…”

Section: Phenomenological Analyses With and Without The Odderon Contrmentioning

confidence: 99%

Introduction to the physics of the total cross section at LHC

Pancheri

Srivastava

2017

Eur. Phys. J. C

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This review describes the development of the physics of hadronic cross sections up to recent LHC results and cosmic ray experiments. We present here a comprehensive review -written with a historical perspective -about total cross sections from medium to the highest energies explored experimentally and studied through a variety of methods and theoretical models for over 60 years. We begin by recalling the analytic properties of the elastic amplitude and the theorems about the asymptotic behavior of the total cross section. A discussion of how proton-proton cross sections are extracted from cosmic rays at higher than accelerator energies and help the study of these asymptotic limits, is presented. This is followed by a description of the advent of particle colliders, through which high energies and unmatched experimental precisions have been attained. Thus the measured hadronic elastic and total cross sections have become crucial instruments to probe the so called soft part of QCD physics, where quarks and gluons are confined, and have led to test and refine Regge behavior and a number of diffractive models. As the c.m. energy increases, the total cross section also probes the transition into hard scattering describable with perturbative QCD, the so-called mini-jet region. Further tests are provided by cross section measurements of γ p, γ * p and γ * γ * for models based on vector meson dominance, scaling limits of virtual photons at high Q 2 and the BFKL formalism. Models interpolating from virtual to real photons are also tested.

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“…The HEGS model reproduces well the form and the energy dependence of the diffraction dip of the proton-proton and proton antiproton elastic scattering [86]. The predictions of the model in most part reproduce the form of the differential cross section at √ s = 13 TeV.…”

Section: Discussionmentioning

confidence: 65%

Possible Studies at the First Stage of the NICA Collider Operation with Polarized and Unpolarized Proton and Deuteron Beams

Abramov

Aleshko²,

Baskov

et al. 2021

Phys. Part. Nuclei

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Nuclotron based Ion Collider fAcility (NICA) project is in progress at the Joint Institute for Nuclear Research and will start experiments with heavy ions. In the context of the NICA Hadronic Physics programme double polarized pp-, dd-and pd-collisions even at lower energies of √ sNN = 3.4 − 10 GeV, which will be accessible already at the initial stage of experiments,are essential tools for precise understanding the spin dependence of the nucleon-nucleon strong interactions, in both elastic and deep-inelastic regimes. A special interest is interaction in few baryon systems at double strangeness, charm and beauty thresholds.For instance, polarized large-angle elastic pp and pn scattering near the charm threshold allows one to get an access to properties of possible exotic multiquark states and their relation to the states recently observed at LHCb.Large angle scattering of protons and deuterons on the deuteron contains unique information on the short-range structure of the deuteron, its non-nucleonic degrees of freedom and also on color transparency phenomenon. Furthermore, double polarized proton-deuteron scattering offer a possibility to test the Standard Model through the search for time-invariance (or CP-invariance under CPT symmetry) violation and parity-violation in single-polarized scattering. This paper contains suggestions for experiments with usage of the Spin Physics Detector (SPD) and discusses perspectives of the first stage of the SPD Programme. This includes experiments with non-polarized beams too as well as collisions like 12 С-12 С and 40 Сa-40 Ca.9 Multiquark correlations and exotic hadron state production 9 9.1 Multiquark correlations and exotic state production at SPD NICA . . . .

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The energy dependence of the diffraction minimum in the elastic scattering and new LHC data

Cited by 22 publications

References 39 publications

New physics from TOTEM’s recent measurements of elastic and total cross sections

New physics from TOTEM’s recent measurements of elastic and total cross sections

Introduction to the physics of the total cross section at LHC

Possible Studies at the First Stage of the NICA Collider Operation with Polarized and Unpolarized Proton and Deuteron Beams

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