Eikonal minijet model for proton-proton collisions

Tässä tutkielmassa johdettiin minijettimalli suurienergiaisille protoni-protoni -törmäyksille eikonaaliformalismissa. Mallia testattiin numeerisen laskennan keinoin kokeellisilla tuloksilla protoni-protoni -törmäyksien elastisista, epäelastisista ja kokonaisvaikutusaloista keskeisliikemääräkoordinaa...

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Main Author: Kuha, Mikko
Other Authors: Matemaattis-luonnontieteellinen tiedekunta, Faculty of Sciences, Fysiikan laitos, Department of Physics, University of Jyväskylä, Jyväskylän yliopisto
Format: Master's thesis
Language:eng
Published: 2017
Subjects:
Online Access: https://jyx.jyu.fi/handle/123456789/53434
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author Kuha, Mikko
author2 Matemaattis-luonnontieteellinen tiedekunta Faculty of Sciences Fysiikan laitos Department of Physics University of Jyväskylä Jyväskylän yliopisto
author_facet Kuha, Mikko Matemaattis-luonnontieteellinen tiedekunta Faculty of Sciences Fysiikan laitos Department of Physics University of Jyväskylä Jyväskylän yliopisto Kuha, Mikko Matemaattis-luonnontieteellinen tiedekunta Faculty of Sciences Fysiikan laitos Department of Physics University of Jyväskylä Jyväskylän yliopisto
author_sort Kuha, Mikko
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description Tässä tutkielmassa johdettiin minijettimalli suurienergiaisille protoni-protoni -törmäyksille eikonaaliformalismissa. Mallia testattiin numeerisen laskennan keinoin kokeellisilla tuloksilla protoni-protoni -törmäyksien elastisista, epäelastisista ja kokonaisvaikutusaloista keskeisliikemääräkoordinaatiston energiaskaalassa sqrt(s)=0.1..100 TeV. Myös viimeisimpiä CERN-LHC -kiihdyttimen mittaustuloksia tarkasteltiin. Numeerisen analyysin yhtenä osana tutkittiin myös yhden efektiivisen aliprosessin approksimaatiota, joka osoittautui tutkituilla energioilla hyvin tarkaksi. Lisäksi tarkasteltiin moninkertaisen kaksijettituoton roolia protoni-protoni -törmäysten epäelastisessa vaikutusalassa. An eikonal minijet model for high energy proton-proton collisions was discussed and numerically tested. The testing was done against data gathered on elastic, inelastic, and total cross-sections in proton-proton collisions at the centre of momentum frame energy scale of sqrt(s)=0.1..100 TeV, including the latest CERN-LHC measurements. As a part of the numerical analysis, the validity of the single effective subprocess approximation was examined, and the contributions of multiple dijet production to the inelastic cross-section were calculated separately. The analytically simplistic eikonal minijet model performed surprisingly well in the data comparison when the width of the gluon cloud was chosen large enough. Also, the single effective subprocess approximation was demonstrated to work to a very good accuracy at the energy scales studied.
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spellingShingle Kuha, Mikko Eikonal minijet model for proton-proton collisions kvanttiväridynamiikka partonimalli eikonaalimalli Teoreettinen fysiikka Theoretical Physics 4024 numeeriset menetelmät protonit
title Eikonal minijet model for proton-proton collisions
title_full Eikonal minijet model for proton-proton collisions
title_fullStr Eikonal minijet model for proton-proton collisions Eikonal minijet model for proton-proton collisions
title_full_unstemmed Eikonal minijet model for proton-proton collisions Eikonal minijet model for proton-proton collisions
title_short Eikonal minijet model for proton-proton collisions
title_sort eikonal minijet model for proton proton collisions
title_txtP Eikonal minijet model for proton-proton collisions
topic kvanttiväridynamiikka partonimalli eikonaalimalli Teoreettinen fysiikka Theoretical Physics 4024 numeeriset menetelmät protonit
topic_facet 4024 Teoreettinen fysiikka Theoretical Physics eikonaalimalli kvanttiväridynamiikka numeeriset menetelmät partonimalli protonit
url https://jyx.jyu.fi/handle/123456789/53434 http://www.urn.fi/URN:NBN:fi:jyu-201703311843
work_keys_str_mv AT kuhamikko eikonalminijetmodelforprotonprotoncollisions