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The detailed dependences of central meson production on the azimuthal angle phi, t and the meson J^P are shown to be consistent with the hypothesis that the soft Pomeron transforms as a non-conserved vector current. Further tests are…

High Energy Physics - Phenomenology · Physics 2009-10-31 F. E. Close , G. A. Schuler

We discuss the central exclusive production of $f_{1}$ mesons in proton-proton collisions. The diffractive pomeron-pomeron fusion process within the tensor-pomeron approach is considered. Two ways to construct the pomeron-pomeron-$f_{1}$…

High Energy Physics - Phenomenology · Physics 2021-12-08 Piotr Lebiedowicz

A successful interpretation of the cross sections for elastic and inelastic vector meson production can be made if one assumes the underlying dynamics to be governed by hard partonic subprocesses. Extending these partonic approaches to…

High Energy Physics - Phenomenology · Physics 2007-05-23 S. P. Baranov , M. G. Ryskin , T. Gehrmann

A study of resonance production in central pp collisions is presented as a function of several kinematical variables. In particular the difference in the transverse momentum (dPT) of the exchanged particles shows that undisputed qqbar…

High Energy Physics - Phenomenology · Physics 2008-11-26 A. Kirk

The Pomeron, which dominates high energy elastic and diffractive hadronic processes, must be largely gluonic in nature. We use a recent picture of a scalar glueball/sigma system with coupling of the sigma to glue determined from experiment…

High Energy Physics - Phenomenology · Physics 2007-05-23 Leonard S. Kisslinger , Wei-hsing Ma , Pengnian Shen

The meson production cross sections are estimated considering photon-photon interactions in hadron - hadron collisions at CERN LHC energies. We consider a large number of mesons with photon-photon partial decay width well constrained by the…

High Energy Physics - Phenomenology · Physics 2014-05-27 V. P. Goncalves , D. T. da Silva , W. K. Sauter

We review some selected results of the tensor-pomeron and vector-odderon model of soft high-energy proton-proton scattering and central exclusive production of meson and baryon pairs in proton-proton collisions. We discuss the theoretical…

High Energy Physics - Phenomenology · Physics 2019-05-22 Piotr Lebiedowicz , Otto Nachtmann , Antoni Szczurek

The Pomeron, which dominates high energy elastic and diffractive hadronic processes, must be largely gluonic in nature. We use a recent picture of a scalar glueball/sigma system with coupling of the sigma to glue determined from experiment…

High Energy Physics - Phenomenology · Physics 2009-11-10 Leonard S. Kisslinger , Wei-hsing Ma , Pengnian Shen

The production of $f_{1}$ ($J^{PC} = 1^{++}$) mesons in proton-proton collisions via pomeron-pomeron fusion is discussed. Two ways to construct the pomeron-pomeron-$f_{1}$ coupling are presented. Comparisons with data from the WA102…

High Energy Physics - Phenomenology · Physics 2020-12-08 Piotr Lebiedowicz , Josef Leutgeb , Otto Nachtmann , Anton Rebhan , Antoni Szczurek

The non-Abelian nature of QCD suggests that particles that have a gluon constituent, such as glueballs or hybrids, should exist. This paper presents a study of central meson production in the fixed target experiments WA76, WA91 and WA102 at…

High Energy Physics - Experiment · Physics 2014-09-30 Andrew Kirk

We discuss the production of hadronic resonances in very peripheral heavy ion collisions, where the ions collide with impact parameter larger than twice the nuclear radius and remain intact after the collision. We compare the resonance…

Nuclear Theory · Physics 2015-06-26 A. A. Natale

Exclusive production of axial-vector $f_{1}(1285)$ meson in proton-proton collisions via pomeron-pomeron fusion within the tensor-pomeron approach is discussed. Two ways to construct the pomeron-pomeron-$f_{1}$ coupling are presented. We…

High Energy Physics - Phenomenology · Physics 2021-07-30 Piotr Lebiedowicz , Josef Leutgeb , Otto Nachtmann , Anton Rebhan , Antoni Szczurek

In high energy electron-ion colliders, a new way to probe nucleon structure becomes available through diffractive reactions, where the incident particle produces a very energetic almost forward particle. QCD describes these reactions as due…

High Energy Physics - Phenomenology · Physics 2021-06-02 W. Cosyn , B. Pire

Central exclusive production in hadron-hadron collisions at high energies, for example p + p -> p + X + p, where the "+" represents a large rapidity gap, is a valuable process for spectroscopy of mesonic states X. At collider energies the…

High Energy Physics - Experiment · Physics 2017-04-05 Michael G. Albrow

We have stumbled upon a remarkable empirical feature of central meson production which separates established $q\bar{q}$ mesons from glueball candidates. This does not appear to have been noted previously and we have no simple explanation…

High Energy Physics - Phenomenology · Physics 2008-11-26 Frank Close , Andrew Kirk

In this contribution we summarize recent results on the computation of cross sections for glueball candidates production in quasi-real photon-photon collisions and on central diffraction processes, i.e. double Pomeron exchange, in heavy ion…

High Energy Physics - Phenomenology · Physics 2011-11-28 M. V. T. Machado , M. L. L. da Silva

An earlier developed model for vector meson photoproduction, based on a dipole Pomeron exchange, is extended to electroproduction. Universality of the non linear Pomeron trajectory is tested by fitting the model to ZEUS and H1 data as well…

High Energy Physics - Phenomenology · Physics 2009-11-10 R. Fiore , L. L. Jenkovszky , F. Paccanoni , A. Prokudin

We discuss consequences of the models of "tensorial pomeron" and "vectorial pomeron" for exclusive diffractive production of scalar and pseudoscalar mesons in proton-proton collisions. Diffractive production of $f_{0}(980)$, $f_{0}(1370)$,…

High Energy Physics - Phenomenology · Physics 2015-06-17 Piotr Lebiedowicz , Otto Nachtmann , Antoni Szczurek

An earlier developed model for vector meson photoproduction, based on a dipole Pomeron exchange, is extended to electroproduction. Universality of the non linear Pomeron trajectory is tested by fitting the model to ZEUS and H1 data as well…

High Energy Physics - Phenomenology · Physics 2011-03-23 R. Fiore , L. L. Jenkovszky , F. Paccanoni , A. Prokudin

A study of central meson production as a function of the difference in transverse momentum (dPT) of the exchanged particles shows that undisputed qqbar mesons are suppressed at small dPT whereas the glueball candidates are enhanced. In…

High Energy Physics - Phenomenology · Physics 2007-05-23 A. Kirk , the WA102 Collaboration
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