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相关论文: Pomeron Odderon interference in production of pi+ …

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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…

高能物理 - 唯象学 · 物理学 2014-11-20 B. Pire , F. Schwennsen , L. Szymanowski , S. Wallon

In this contribution we discuss the production of two pion pairs in high energy photon collisions as they can be produced in ultraperipheral collisions at hadron colliders such as the Tevatron, RHIC or LHC. We find that charge asymmetries…

高能物理 - 唯象学 · 物理学 2014-11-18 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…

高能物理 - 唯象学 · 物理学 2009-09-16 Bernard Pire , Florian Schwennsen , Lech Szymanowski , Samuel 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…

高能物理 - 唯象学 · 物理学 2008-12-18 B. Pire , L. Szymanowski , F. Schwennsen , S. 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…

高能物理 - 唯象学 · 物理学 2011-09-13 Ph. Hagler , B. Pire , L. Szymanowski , O. V. Teryaev

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…

高能物理 - 唯象学 · 物理学 2019-02-27 L. A. Harland-Lang , V. A. Khoze , A. D. Martin , M. G. Ryskin

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…

高能物理 - 唯象学 · 物理学 2015-10-28 J. P. Lansberg , L. Szymanowski , J. Wagner

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…

核理论 · 物理学 2009-11-06 C. G. Roldao , A. A. Natale

We have investigated the single and double diffractive production of dileptons and photons in ultra-peripheral collisions at the Large Hadron Collider (LHC). Utilizing advanced theoretical models that integrate quantum electrodynamics (QED)…

高能物理 - 唯象学 · 物理学 2024-05-28 Gongming Yu , Rabia Hameed , Liyuan Hu , Qiang Hu

We revisit the description of pion production in proton-proton collisions in the light of the very precise data taken at the Large Hadron Collider (LHC) over the past decade. First attempts to include LHC results in next-to-leading order…

高能物理 - 唯象学 · 物理学 2022-02-23 Ignacio Borsa , Daniel de Florian , Rodolfo Sassot , Marco Stratmann

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…

高能物理 - 唯象学 · 物理学 2009-11-07 Ph. Hagler , B. Pire , L. Szymanowski , O. V. Teryaev

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…

高能物理 - 唯象学 · 物理学 2014-11-17 I. F. Ginzburg , I. P. Ivanov , N. N. Nikolaev

Within the resolved Pomeron model of hard diffractive scattering, we compute prompt photon production in double-Pomeron-exchange events in proton-proton collisions. Using specific kinematical constraints chosen according to the acceptances…

高能物理 - 唯象学 · 物理学 2016-05-04 A. K. Kohara , C. Marquet

One of the open questions of the strong interaction theory is the existence of the Odderon, which is an unambiguous prediction of Quantum Chromodynamics, but still not confirmed in the experiment. In this paper we propose the study of the…

高能物理 - 唯象学 · 物理学 2015-06-12 V. P. Goncalves

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…

高能物理 - 唯象学 · 物理学 2011-09-13 V. P. Goncalves , M. V. T. Machado

Large Hadron Collider (LHC) had produced a vast amount of high precision data for high energy heavy ion collision. We attempt here to study (i) transverse momenta spectra, (ii) $K/\pi$, $p/\pi$ ratio behaviours, (iii)rapidity distribution,…

高能物理 - 唯象学 · 物理学 2015-02-20 P. Guptaroy , S. Guptaroy

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…

高能物理 - 唯象学 · 物理学 2023-04-05 László Jenkovszky , Érison S. Rocha , Magno V. T. Machado

We study pp and p\bar p collisions which lead to the exclusive production of J/psi or Upsilon from the pomeron-odderon and the pomeron-photon fusion. We calculate scattering amplitudes of these processes in the lowest order approximation…

高能物理 - 唯象学 · 物理学 2008-11-26 A. Bzdak , L. Motyka , L. Szymanowski , J. -R. Cudell

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…

高能物理 - 唯象学 · 物理学 2010-11-15 Ph. Hägler , B. Pire , L. Szymanowski , O. V. Teryaev

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.…

高能物理 - 唯象学 · 物理学 2021-04-28 Yoshikazu Hagiwara , Cheng Zhang , Jian Zhou , Ya-jin Zhou
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