Photoproduction total cross section and shower development

Cornet, Fernando; Canal, C.A. Garcia; Grau, A.; Pancheri, G.; Sciutto, S. J.

doi:10.1103/physrevd.92.114011

Cited by 7 publications

(16 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…108 The maximum single gluon momentum allowed for soft gluon integration, q max in GeV, vs. √ s in GeV for γ p scattering, from [147]. Reprinted with permission from [147] √ s in GeV, from [450]. This is Fig.…”

Section: The Bn Model: Eikonal Mini-jet Model With Soft-gluon Resummamentioning

confidence: 99%

See 1 more Smart Citation

Introduction to the physics of the total cross section at LHC

Pancheri

Srivastava

2017

Eur. Phys. J. C

View full text Add to dashboard Cite

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.

show abstract

Section: The Bn Model: Eikonal Mini-jet Model With Soft-gluon Resummamentioning

confidence: 99%

“…This is Fig. (2) from [450], ©(2015) by the American Physical Society for the protons, while two sets of photon PDFs were used. A comparison was made with predictions from some available models, such as indicated in the figure and discussed in [147].…”

Section: The Bn Model: Eikonal Mini-jet Model With Soft-gluon Resummamentioning

confidence: 99%

Introduction to the physics of the total cross section at LHC

Pancheri

Srivastava

2017

Eur. Phys. J. C

View full text Add to dashboard Cite

show abstract

“…significantly into the region of ultra high energy cosmic rays. Therefore VHEeP data could be used to constrain cosmic-ray air-shower simulations and so will be of benefit to understanding the nature of cosmic rays at the highest energies (for example, see [24]). Figure 5: Total γp cross section versus photon-proton centre-of-mass energy, W , shown for data compared to various models.…”

Section: Total Photon-proton Cross Sectionmentioning

confidence: 99%

VHEeP: a very high energy electron–proton collider

Caldwell¹,

Wing²

2016

Eur. Phys. J. C

View full text Add to dashboard Cite

Based on current CERN infrastructure, an electron-proton collider is proposed at a centre-of-mass energy of about 9 TeV. A 7 TeV LHC bunch is used as the proton driver to create a plasma wakefield which then accelerates electrons to 3 TeV, these then colliding with the other 7 TeV LHC proton beam. Although of very high energy, the collider has a modest projected integrated luminosity of 10-100 pb −1 . For such a collider, with a centre-of-mass energy 30 times greater than HERA, parton momentum fractions, x, down to about 10 −8 are accessible for photon virtualities, Q 2 , of 1 GeV 2 . The energy dependence of hadronic cross sections at high energies, such as the total photon-proton cross section, which has synergy with cosmic-ray physics, can be measured and QCD and the structure of matter better understood in a region where the effects are completely unknown. Searches at high Q 2 for physics beyond the Standard Model will be possible, in particular the significantly increased sensitivity to the production of leptoquarks. These and other physics highlights of a very high energy electronproton collider are outlined.

show abstract

“…We address again the question of how different models for photo production affect the description of the development of photon-initiated cosmic ray showers and, consequently, how much the estimated photon composition of the showers depends from the models used in the simulation. In this way, we update a previous publication [1]. The simulation of the shower development is performed using the AIRES MC [2], linked to the hadronic models QGSJET-II-04 [3], QGSJET in the following, and EPOS-LHC 3.40 [4], EPOS in the following, that have recently been updated to take into account LHC results.…”

Section: Introductionmentioning

confidence: 99%

“…

KeywordsTotal photo-production cross section; mini-jet models; cosmic rays; shower development 1 The total photo production cross sectionWe address again the question of how different models for photo production affect the description of the development of photon-initiated cosmic ray showers and, consequently, how much the estimated photon composition of the showers depends from the models used in the simulation. In this way, we update a previous publication [1]. The simulation of the shower development is performed using the AIRES MC [2], linked to the hadronic models QGSJET-II-04 [3], QGSJET in the following, and EPOS-LHC 3.40 [4], EPOS in the following, that have recently been updated to take into account LHC results.

…”

mentioning

confidence: 99%

Photoproduction with a mini-jet model and Cosmic Ray showers

Cornet¹,

Garcia-Canal²,

Grau³

et al. 2017

Preprint

View full text Add to dashboard Cite

We present post-LHC updates of estimates of the total photo-production cross section in a mini-jet model with infrared soft gluon resummation, and apply the model to study Cosmic Ray shower development, comparing the results with those obtained from other existing models. KeywordsTotal photo-production cross section; mini-jet models; cosmic rays; shower development 1 The total photo production cross sectionWe address again the question of how different models for photo production affect the description of the development of photon-initiated cosmic ray showers and, consequently, how much the estimated photon composition of the showers depends from the models used in the simulation. In this way, we update a previous publication [1]. The simulation of the shower development is performed using the AIRES MC [2], linked to the hadronic models QGSJET-II-04 [3], QGSJET in the following, and EPOS-LHC 3.40 [4], EPOS in the following, that have recently been updated to take into account LHC results. The study includes two different photo-production models:-the Block and Halzen (BH) model for total cross sections at very high energies [5] presently in AIRES as default model, -the extension to photoproduction [6] of the so-called Bloch-Nordsieck (BN) model for total hadronic cross sections [7,8], recently implemented in AIRES.

show abstract

Photoproduction total cross section and shower development

Cited by 7 publications

References 46 publications

Introduction to the physics of the total cross section at LHC

Introduction to the physics of the total cross section at LHC

VHEeP: a very high energy electron–proton collider

Photoproduction with a mini-jet model and Cosmic Ray showers

Contact Info

Product

Resources

About