Diffractive production in ultra-peripheral collisions at high-energy

2017 ◽  
Author(s):  
Néstor Armesto ◽  
Amir H. Rezaeian
Keyword(s):  
High Energy ◽  
Peripheral Collisions ◽  
Diffractive Production

scholarly journals Tensor pomeron, vector odderon and diffractive production of meson and baryon pairs in proton-proton collisions

2019 ◽  
Vol 206 ◽  
pp. 06005 ◽  
Author(s):  
Piotr Lebiedowicz ◽  
Otto Nachtmann ◽  
Antoni Szczurek
Keyword(s):  
Experimental Data ◽  
High Energy ◽  
Proton Proton ◽  
Proton Collisions ◽  
High Energies ◽  
Energy Proton ◽  
Diffractive Production ◽  
Proton Proton Collisions ◽  
Theoretical Results ◽  
The Continuum

We review some selected results of the tensor-pomeron and vectorodderon 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 aspects of this approach and consider the phenomenological implications in a variety of processes at high energies, comparing to existing experimental data. We consider the diffractive dipion and dikaon production including the continuum and the dominant scalar and tensor resonance contributions as well as the photoproduction processes. The theoretical results are compared with existing CDF experimental data and predictions for planned or current LHC experiments, ALICE, ATLAS, CMS, LHCb are presented.

Recent experiments with counters at the C.E.R.N. proton synchrotron

1964 ◽  
Vol 278 (1374) ◽  
pp. 340-350
Keyword(s):  
Elementary Particle ◽  
High Energy Physics ◽  
Bubble Chamber ◽  
Regge Pole ◽  
High Energy ◽  
Point Of View ◽  
Proton Synchrotron ◽  
Peripheral Collisions ◽  
Break Up ◽  
Compound Particle

I feel I should begin by pointing out that in at least two respects I am not qualified to give this talk. The first is that our machine at Liverpool is of course a 400 MeV machine, which only counts as a low-energy one these days, and I have not worked at C. E. R. N. where the real high-energy physics in Europe is now being done; I can only speak about it at second hand. I have, however, been making rather frequent visits to C. E. R. N. recently, thanks to an invitation from Professor Weisskopf, so that I can give some description of the counter experiments on the proton synchrotron there. The description is necessarily from a spectator’s point of view, and to that extent, superficial. The second lack of qualification comes from the fact that Professor Weisskopf has explained all the easy part about the significance of the most interesting counter experiments, so that I have to try and go a little further. Now, that necessarily involves me in the extremely sophisticated and conjectural ideas of the Regge pole analysis, which are not easy to explain to non-specialists. I shall try to convey the spirit if not the substance of that analysis. However, I should like to begin with a description of a different experiment, bearing on the elementary particle spectroscopy to which Professor Weisskopf drew your attention this morning. The main details of elementary-particle spectroscopy have of course come to use from bubble-chamber experiments, and, on the whole, the counter programme has not made a great contribution to it. One experiment, however, that is unusually clear is the counter experiment of Caldwell et al . on the production of associated bosons from peripheral collisions. Figure 37 shows the sort of process that is sought in this experiment. A highenergy pion beam is directed at a nucleon and glancing collisions are sought; in other words, collisions that take place at a long range and are probably associated with the exchange of one particle. Of course, the range of the interaction is longer when the mass of the exchange particles is small, so a single pion is most likely to be exchanged. The nucleon emits this pion and may itself break up into a number of particles, which the experiment does not investigate any further. At the other vertex the exchange particle joins the pion and, hopefully, makes a compound particle which later breaks up into associated bosons, either two pions or two kaons. If the particle exchanged is a pion, of course, this short-lived compound particle has strangeness zero, and therefore it can only break up into two pions or two kaons, but not into a kaon and a pion.

scholarly journals Impact factor for high-energy two and three jets diffractive production

2015 ◽  
Author(s):  
R. Boussarie ◽  
A.V. Grabovsky ◽  
L. Szymanowski ◽  
S. Wallon
Keyword(s):  
Impact Factor ◽  
High Energy ◽  
Diffractive Production

scholarly journals Diffractive production of Λ hyperons in the high-energy limit of strong interactions

2020 ◽  
Vol 102 (9) ◽  
Author(s):  
Francesco Giovanni Celiberto ◽  
Dmitry Yu. Ivanov ◽  
Alessandro Papa
Keyword(s):  
High Energy ◽  
Strong Interactions ◽  
Energy Limit ◽  
High Energy Limit ◽  
Diffractive Production

Multichannel Approach to High-Energy Peripheral Collisions

1965 ◽  
Vol 139 (1B) ◽  
pp. B179-B183 ◽  
Author(s):  
D. B. Lichtenberg ◽  
P. K. Williams
Keyword(s):  
High Energy ◽  
Peripheral Collisions

Coupled-Channel Schrödinger-Equation Model for High-Energy Peripheral Collisions

1966 ◽  
Vol 143 (4) ◽  
pp. 1375-1388 ◽  
Author(s):  
John G. Wills ◽  
David Ellis ◽  
D. B. Lichtenberg
Keyword(s):  
Schrödinger Equation ◽  
Schrodinger Equation ◽  
High Energy ◽  
Equation Model ◽  
Peripheral Collisions ◽  
Coupled Channel

Diffractive production of vector mesons in high-energy photon-photon collisions

1982 ◽  
Vol 26 (5) ◽  
pp. 1175-1178
Author(s):  
L. Maharana ◽  
S. P. Misra ◽  
A. R. Panda
Keyword(s):  
High Energy ◽  
High Energy Photon ◽  
Vector Mesons ◽  
Energy Photon ◽  
Diffractive Production

scholarly journals Interaction of 160-GeV muon with emulsion nuclei

2018 ◽  
Vol 27 (01) ◽  
pp. 1850007 ◽  
Author(s):  
S. M. Othman ◽  
M. T. Ghoneim ◽  
M. T. Hussein ◽  
H. El-Samman ◽  
A. Hussein
Keyword(s):  
Angular Distribution ◽  
Electric Field ◽  
Cross Section ◽  
High Energy ◽  
Energy Spectra ◽  
Giant Resonances ◽  
Peripheral Collisions ◽  
Impact Parameters

In this work we present some results of the interaction of high-energy muons with emulsion nuclei. The interaction results in emission of a number of fragments as a consequence of electromagnetic dissociation of the excited target nuclei. This excitation is attributed to absorption of photons by the target nuclei due to the intense electric field of the very fast incident muon particles. The interactions take place at impact parameters that allow ultra-peripheral collisions to take place, leading to giant resonances and hence multifragmentation of emulsion targets. Charge identification, range, energy spectra, angular distribution and topological cross-section of the produced fragments are measured and evaluated.

scholarly journals Non-linear evolution and high energy diffractive production

2001 ◽  
Vol 521 (3-4) ◽  
pp. 233-238 ◽  
Author(s):  
E. Levin ◽  
M. Lublinsky
Keyword(s):  
High Energy ◽  
Linear Evolution ◽  
Diffractive Production ◽  
Non Linear
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