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Related papers: Odderon-Pomeron Interference

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We propose the asymmetry in the fractional energy of charm versus anticharm jets produced in high energy diffractive photoproduction as a sensitive test of the interference of the Odderon (C = -) and Pomeron (C = +) exchange amplitudes in…

High Energy Physics - Phenomenology · Physics 2009-09-11 C. Merino , S. J. Brodsky , J. Rathsman

Charge asymmetries in diffractive electroproduction of two mesons are proportional to the interference of Pomeron and Odderon exchange amplitudes. We calculate in the framework of QCD and in the Born approximation a forward-backward charge…

High Energy Physics - Phenomenology · Physics 2010-11-15 Ph. Hägler , B. Pire , L. Szymanowski , O. V. Teryaev

We consider exclusive $\pi^0$ production in ep-scattering. At high energies odderon and photon exchange contribute. The photon exchange contribution is evaluated exactly using data for the total virtual photon-proton absorption cross…

High Energy Physics - Phenomenology · Physics 2016-09-06 E. R. Berger

The interference of Pomeron and Odderon amplitudes gives rise to a charge asymmetry in the diffractive electroproduction of a pi+pi- -pair. We calculate this charge asymmetry in perturbative QCD in the Born approximation and on the leading…

High Energy Physics - Phenomenology · Physics 2009-11-07 Ph. Hagler , B. Pire , L. Szymanowski , O. V. Teryaev

We investigate the production of a quark-antiquark pair in diffractive photon- proton scattering, approximating soft pomeron exchange by the exchange of two nonperturbative gluons. In deep inelastic scattering at HERA, events with two jets…

High Energy Physics - Phenomenology · Physics 2011-07-19 M. Diehl

We study Pomeron-Odderon interference effects giving rise to charge and single-spin asymmetries in diffractive electroproduction of a pi+ pi- pair. We calculate these asymmetries originating from both longitudinal and transverse…

High Energy Physics - Phenomenology · Physics 2011-09-13 Ph. Hagler , B. Pire , L. Szymanowski , O. V. Teryaev

We estimate the production of two meson pairs in high energy photon photon collisions produced in ultraperipheral collisions at LHC. We show that the study of charge asymmetries may reveal the existence of the perturbative Odderon and…

High Energy Physics - Phenomenology · Physics 2008-12-18 B. Pire , L. Szymanowski , F. Schwennsen , S. Wallon

We investigate the reaction $e p \to e PS X$ where PS denotes a pseudoscalar meson $\pi^0, \eta, \eta'$, or $\eta_c$ and X either a proton or resonance or continuum states into which the proton can go by diffractive excitation. At high…

High Energy Physics - Phenomenology · Physics 2016-09-06 E. R. Berger , A. Donnachie , H. G. Dosch , W. Kilian , O. Nachtmann , M. Rueter

The interference between the Pomeron and possible odderon mechanisms of diffractive pi+pi- photoproduction results in charge asymmetry of the produced pions. The observation of charge asymmetry of pions at moderate M_{pi+pi-} will be an…

High Energy Physics - Phenomenology · Physics 2014-11-17 I. F. Ginzburg , I. P. Ivanov , N. N. Nikolaev

We have studied events with a high-x_F antiproton and two central jets with E_T>7 GeV in CDF, in p+p_bar collisions at sqrt(s) = 1800 GeV. From the di-jet kinematics we derive the diffractive structure function of the antiproton. We also…

High Energy Physics - Phenomenology · Physics 2016-09-06 Michael G. Albrow

We study Pomeron-Odderon interference effects giving rise to charge and single-spin asymmetries in diffractive electroproduction of a $\pi^+ \pi^-$ pair. We calculate these asymmetries in the Born approximation of QCD in a kinematical…

High Energy Physics - Phenomenology · Physics 2015-06-25 P. Hagler , B. Pire , L. Szymanowski , O. V. Teryaev

We present and discuss two different topics where Tevatron and HERA data can be compared directly. A method allowing for a direct comparison of data with theoretical predictions is proposed for forward jet production at HERA. An application…

High Energy Physics - Phenomenology · Physics 2007-05-23 Ch. Royon

We discuss how the evasive Odderon signal can be enhanced by final state interactions. We suggest the charge asymmetry of pion spectra in diffractive pi+pi- photoproduction as a promising signature of the Odderon exchange.

High Energy Physics - Phenomenology · Physics 2015-06-25 I. P. Ivanov , N. N. Nikolaev , I. F. Ginzburg

We consider hard diffractive events in proton-proton collisions at the LHC, in which both protons escape the collision intact. In such double Pomeron exchange processes, we propose to measure dijets and photon-jet final states, and we show…

High Energy Physics - Phenomenology · Physics 2015-06-16 C. Marquet , C. Royon , M. Saimpert , D. Werder

We study the production asymmetry of charm versus anticharm mesons in photon-proton interactions. We consider photon gluon fusion plus higher order corrections in which light quarks through vector meson-proton interactions contribute to the…

High Energy Physics - Phenomenology · Physics 2009-11-07 G. Herrera , A. Sanchez-Hernandez , E. Cuautle , J. Magnin

Charge asymmetry in electron (positron) scattering arises from the interference of the Born amplitude and the box-type amplitude corresponding to two virtual photons exchange. It can be extracted from electron proton and positron proton…

High Energy Physics - Phenomenology · Physics 2007-05-23 E. A. Kuraev , V. V. Bytev

We study Pomeron-Odderon interference effects giving rise to charge and single-spin asymmetries in diffractive electroproduction of a $\pi^+ \pi^-$ pair. The final state interactions and the role of $f_0$ meson are discussed. The absence of…

High Energy Physics - Phenomenology · Physics 2007-05-23 P. Hagler , B. Pire , L. Szymanowski , O. V. Teryaev

Jet and charm quark production in diffractive interactions is sensitive to the partonic structure of the diffractive exchange. This article reviews recent cross section measurements of such processes in both deep-inelastic scattering (DIS)…

High Energy Physics - Experiment · Physics 2007-05-23 Yuji Yamazaki

The odderon intercept is calculated directly, from its expression via an average energy of the odderon Hamiltonian, using both trial wave functions in the variational approach and the wave function recently constructed by R.A.Janik and…

High Energy Physics - Phenomenology · Physics 2016-09-06 M. A. Braun , P. Gauron , B. Nicolescu

The non-forward eikonal scattering matrix for dipole-proton scattering at high energy obtains an imaginary part due to a $C$-odd three gluon exchange. We present numerical estimates for the perturbative Odderon amplitude as a function of…

High Energy Physics - Phenomenology · Physics 2025-02-25 Adrian Dumitru , Heikki Mäntysaari , Risto Paatelainen
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