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Unitarisation dependence of diffractive scattering in light of high-energy collider data
Arno Vanthieghem, Atri Bhattacharya, Rami Oueslati +1
We study the consequences of high-energy collider data on the best fits to total, elastic, inelastic, and single-diffractive cross sections for and scattering usin…
The proton inelastic cross section at ultrahigh energies
Atri Bhattacharya, Jean-René Cudell, Rami Oueslati +1
We study the consequences of high-energy collider data on the best fits to total, elastic, and inelastic cross sections for and scattering using two very distinct u…
Strongly interacting dark matter and the DAMA signal
Maxim Laletin, Jean-René Cudell
We show that models of strongly interacting (SIMP) dark matter built to reproduce the DAMA signal actually cannot account for its time dependence. We discuss the constraints on thi…
TOTEM data and the real part of the hadron elastic amplitude at 13 TeV
J. R. Cudell, O. V. Selyugin
We analyse the 13 TeV TOTEM data on elastic proton-proton scattering through a thorough statistical analysis, and obtain that and mb. Th…
Odderon, HEGS model and LHC data
O. V. Selyugin, J. R. Cudell
We show that the impact of the maximal odderon amplitude at t=0 and centre-of-momentum energy 13 TeV is small. We obtain a value of rho(t=0) at 13 TeV of the order of 0.12. The rea…
Forward charm-production models and prompt neutrinos at IceCube
Atri Bhattacharya, J. R. Cudell
We investigate the prompt neutrino background at IceCube, as determined from forward charm. We consider the role of intrinsic charm and of a recombination model and show that the c…
The structure and analytic properties of the scattering amplitude at LHC energies
Oleg V. Selyugin, Jean-René Cudell
Elastic proton-proton scattering is reviewed starting from the results of the LHC experiments conducted by the TOTEM and ATLAS collaborations, and the HEGS model and a simple pheno…
An Analysis of the New LHC Data through the Dispersion Relations
O. V. Selyugin, J. -R. Cudell
We analyse the tension between the (indirect) measurements of the total cross section, and show the impact of various assumptions on the extraction of the parameters from the elast…
Some potential problems of OHe composite dark matter
Jean-René Cudell, Maxim Khlopov, Quentin Wallemacq
Among composite-dark-matter scenarios, one of the simplest and most predictive is that of O-helium (OHe) dark atoms, in which a lepton-like doubly charged particle O is bound with…
Dark antiatoms can explain DAMA
Quentin Wallemacq, Jean-René Cudell
We show that the existence of a sub-dominant form of dark matter, made of dark antiatoms of mass and size of the order of 1 TeV and 30 fm respectively, can explain the results of d…
Dark atoms and the positron-annihilation-line excess in the galactic bulge
Jean-René Cudell, Maxim Yu. Khlopov, Quentin Wallemacq
It was recently proposed that stable particles of charge , , can exist and constitute dark matter after they bind with primordial helium in O-helium (OHe) atoms. We stu…
The slope of the hadron spin-flip amplitude and the determination of ρ(s,t)
O. V. Selyugin, J. -R. Cudell, E. Predazzi
We re-examine the extraction of ρ(s,t), the ratio of the real part to the imaginary part of the scattering amplitude, and of the spin-flip amplitude, from the existing experimental…
Dispersion relations for meson-proton and proton-proton forward elastic scattering
A. Alkin, J. R. Cudell, E. Martynov
An analysis of the data on forward and scattering is performed making use of the single- and double-subtraction integral and comparing with deriv…
Long-range potential and the fine structure of the diffraction peak
O. V. Selyugin, J. -R. Cudell
The possibility of oscillations in the differential elastic cross section of hadron scattering at small momentum transfer is studied. It is shown that string-like quark potentials…
Higgs Central Exclusive Production
J. R. Cudell, A. Dechambre, O. F. Hernández
We tune the calculation of central exclusive Higgs production to the recent CDF central exclusive dijet data, and predict the cross section for the exclusive production of Higgs bo…
13th International Conference on Elastic and Diffractive Scattering (Blois Workshop) - Moving Forward into the LHC Era
Mario Deile, David d'Enterria, Albert De Roeck +105
Proceedings of the 13th International Conference on Elastic and Diffractive Scattering (Blois Workshop) - Moving Forward into the LHC Era
The Total Cross Section at the LHC: Models and Experimental Consequences
J. R. Cudell
I review the predictions of the total cross section for many models, and point out that some of them lead to the conclusion that the standard experimental analysis may lead to syst…
The spin-flip amplitude in the impact-parameter representation
O. V. Selyugin, J. -R. Cudell
The impact-parameter representation of the spin-flip amplitude of hadron elastic scattering is examined in different unitarisation schemes, taking the Born term of the spin-flip am…
How precisely will the total cross section be measured at the LHC?
J. -R. Cudell, O. V. Selyugin
It is very likely that hadronic scattering will enter a new regime at the LHC, as the black-disk limit is reached. This will lead to a severe change in the t dependence of the real…
New analytic unitarization schemes
J. -R. Cudell, E. Predazzi, O. V. Selyugin
We consider two well-known classes of unitarization of Born amplitudes of hadron elastic scattering. The standard class, which saturates at the black disk limit includes the standa…
Features of elastic scattering at small t at the LHC
O. V. Selyugin, J. -R. Cudell
The problems linked with the extraction of the basic parameters of the hadron elastic scattering amplitude at the LHC are explored. It is shown that one should take into account th…
Exclusive quasielastic production of dijets at hadronic colliders
I. P. Ivanov, J. -R. Cudell, A. Dechambre +1
We critically re-examine the calculation of central production of dijets in quasi-elastic hadronic collisions. We find that the process is not dominated by the perturbative contrib…
Central exclusive production of dijets at hadronic colliders
J. R. Cudell, A. Dechambre, O. F. Hernández +1
In view of the recent diffractive dijet data from CDF run II, we critically re-evaluate the standard approach to the calculation of central production of dijets in quasi-elastic ha…
Central Exclusive Dijet Production
A. Dechambre, J. R. Cudell, O. F. Hernandez +1
Calculations of central exclusive production are affected by very large perturbative and non-perturbative corrections. In this talk, we summarize the results of a study of the unce…