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Related papers: Pomeron-Odderon interference in production of pi^ …

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We discuss the production of two pion pairs in photon collisions at high energies as it can take place in ultraperipheral collisions at hadron colliders such as the LHC. We calculate the according matrix elements in kT factorization and…

High Energy Physics - Phenomenology · Physics 2009-07-01 B. Pire , F. Schwennsen , L. Szymanowski , S. Wallon

We propose to look for the Odderon through the production of two pion pairs in photon collisions at high energies. We calculate the corresponding matrix elements in kT-factorization and discuss the possibility to reveal the existence of the…

High Energy Physics - Phenomenology · Physics 2014-11-20 B. Pire , F. Schwennsen , L. Szymanowski , S. Wallon

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 discuss the production of two pion pairs in photon collisions at high energies. We calculate the according matrix elements in k_T-factorization and discuss the possibility to reveal the existence of the perturbative Odderon by charge…

High Energy Physics - Phenomenology · Physics 2009-09-16 Bernard Pire , Florian Schwennsen , Lech Szymanowski , Samuel Wallon

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 review the results of our studies on the charge and the spin asymmetries in the electroproduction of $\pi^+ \pi^-$ which are the observables sensitive to the Pomeron-Odderon interference.

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

We estimate the cross sections for the production of resonances, pion pairs and a central cluster of hadrons in peripheral heavy-ion collisions through two-photon and double-pomeron exchange, at energies that will be available at RHIC and…

Nuclear Theory · Physics 2009-11-06 C. G. Roldao , A. A. Natale

The strong electromagnetic fields present in ultra-peripheral collisions of heavy-ions offer a possibility to study two-photon and photonuclear collisions complementary to similar studies with lepton beams but over an increased photon…

High Energy Physics - Phenomenology · Physics 2008-12-18 Joakim Nystrand

We investigate the potentialities offered by the study of lepton-pair production in ultraperipheral collisions at a fixed-target experiment using the proton and ion LHC beams. In these collisions, exclusive or semi-exclusive lepton-pair…

High Energy Physics - Phenomenology · Physics 2015-10-28 J. P. Lansberg , L. Szymanowski , J. Wagner

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 explore the possibility of observing Odderon exchange in proton--ion collisions at the LHC, via the ultraperipheral photoproduction of C-even mesons. As well as the signal, we consider in detail the principle backgrounds, due to…

High Energy Physics - Phenomenology · Physics 2019-02-27 L. A. Harland-Lang , V. A. Khoze , A. D. Martin , M. G. Ryskin

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

The photonuclear production of vector mesons in ultraperipheral heavy ion collisions is investigated within the QCD color dipole picture, with particular emphasis on the saturation model. The integrated cross section and the rapidity…

High Energy Physics - Phenomenology · Physics 2011-09-13 V. P. Goncalves , M. V. T. Machado

We study exclusive $\pi^+ \pi^-$ pair production near $\rho^0$ resonance peak in ultraperipheral heavy ion collisions. Pion pair can either be produced via two photon fusion process or from the decay of $\rho^0$ in photon-nuclear reaction.…

High Energy Physics - Phenomenology · Physics 2021-04-28 Yoshikazu Hagiwara , Cheng Zhang , Jian Zhou , Ya-jin Zhou

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

Within the framework of a simple model, we study single-spin asymmetries for pion production in hadron-hadron collisions at high-energies with one hadron polarised. The asymmetries are generated via a mechanism of final (initial) state…

High Energy Physics - Phenomenology · Physics 2011-09-13 Azad Ahmedov , Igor V. Akushevich , Eduard A. Kuraev , Philip G. Ratcliffe

By using the Reggeometric Pomeron model for vector meson production which successfully describes the high energy lepton-nucleon data, we analyse the light meson production in ultra-peripheral heavy ion collisions at the Large Hadron…

High Energy Physics - Phenomenology · Physics 2023-04-05 László Jenkovszky , Érison S. Rocha , Magno V. T. Machado

In this talk estimates are presented of the odderon contributions to the exclusive J/psi and Upsilon production cross-sections at the Tevatron and the Large Hadron Collider. The obtained cross-sections are compared to cross-sections of the…

High Energy Physics - Phenomenology · Physics 2008-08-19 L. Motyka

We review our recent results on exclusive production of $\mu^+ \mu^-$, heavy quark-antiquark, and meson-antimeson pairs in ultraperipheral, ultrarelativistic heavy ion collisions.

Nuclear Theory · Physics 2011-11-11 Antoni Szczurek , Mariola Klusek-Gawenda

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
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