Transverzalna jednostruka spinska asimetrija u visokoenergijskim sudarima hadrona

master's thesis

• Title (english): Transverse single spin asymmetry in high-energy hadron collisions
• Author: Matija Gašparlin
• Mentor: Sanjin Benić (mentor)
• Committee member: Sanjin Benić (predsjednik povjerenstva)
• Committee member: Davor Horvatić (član povjerenstva)
• Committee member: Nikola Poljak (član povjerenstva)
• Granter: University of Zagreb; Faculty of Science; (Department of Physics); (Theoretical Physics Division of Particles and Fields); Zagreb
• Defense date and country: 2025-01-23, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Physics; Physics of Elementary Particles and Fields

Abstract

U ovom diplomskom radu radimo numerički račun asimetrije jednog poprečnog spina (STSA) AN u visokoenergetskim sudarima polariziranih protona s protonima pp -> hX i težim jezgrama pA -> hX prilikom produkcije pi+ i pi0 piona. Računamo fragmentacijski doprinos asimetriji te koristimo hibridni pristup koji spaja kolinearni formalizam s efektivnom teorijom staklastog kondenzata boje. U računu su korišteni podaci s RHIC sudarivača. Pronalazimo da dodavanja članova koji sadrže fragmentacijsku... More funkciju ~H pozitivno dodaje asimetriji, međutim ne mijenja njenu nuklearnu ovisnost. Less

Abstract (english)

In this work we present a numerical calculation of the single spin asymmetry (STSA) AN in forward pi+ & pi0 pion production in polarized proton-proton and proton-nucleus collisions. We calculate the fragmentation contribution to the asymmetry in the hybrid approach which combines the collinear twist-3 framework with the color-glass condensate effective field theory. In our calculation we use the data supplied from the RHIC accelerator. We find that the asymmetry is enlarged when the
~H... More fragmentation function is added. The nuclear dependance of our result is not changed upon adding this function. Less

• Keywords: kvantna kromodinamika; staklasti kondenzat boje; transverzalne spinske asimetrije
• Keywords (english): quantum chromodynamics; color glass condensate; single transverse spin asymmetry
• Language: croatian
• URN:NBN: urn:nbn:hr:217:971290
• Project: Number: UIP-2019-04-5332; Title: Gluonsko zasićenje u visoko energetskim proton-jezgra sudarima - istraživanje novih fenomenoloških smjernica; Title: Gluon saturation in high energy proton-nucleus collisions - exploring new phenomenological directions; Acronym: SAT-PHENO; Leader: Sanjin Benić; Jurisdiction: Croatia; Funder: Hrvatska zaklada za znanost; Funding stream: Installation Research Projects
• Study programme: Title: The University Integrated Undergraduate and Graduate Programme in Physics; Research Physics; specializations in: Research Physics; Course: Research Physics; Study programme type: university; Study level: integrated undergraduate and graduate; Academic / professional title: sveučilišni magistar fizike (sveučilišni magistar fizike)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2025-01-16 20:54:47