Effect of $uu$ diquark suppression in proton splitting in Monte Carlo event generators

Monte Carlo event generators assume that protons split into (uu)-diquarks and d-quarks with a probability of 1/3 in strong interactions. It is shown in this paper that using a value of 1/6 for the probability allows one to describe at a semi-quantitative level the NA49 Collaboration data for $p+p\ri...

Descripción completa

Detalles Bibliográficos
Autores principales: Uzhinsky, V., Galoyan, A.
Lenguaje:eng
Publicado: 2014
Materias:
Acceso en línea:https://dx.doi.org/10.1103/PhysRevD.91.037501
http://cds.cern.ch/record/1957510
_version_ 1780944519052656640
author Uzhinsky, V.
Galoyan, A.
author_facet Uzhinsky, V.
Galoyan, A.
author_sort Uzhinsky, V.
collection CERN
description Monte Carlo event generators assume that protons split into (uu)-diquarks and d-quarks with a probability of 1/3 in strong interactions. It is shown in this paper that using a value of 1/6 for the probability allows one to describe at a semi-quantitative level the NA49 Collaboration data for $p+p\rightarrow p+X$ reactions at 158 GeV/c. The Fritiof (FTF) model of Geant4 was used to simulate the reactions. The reduced weight of the (uu)-diquarks in protons is expected in the instanton model.
id cern-1957510
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2014
record_format invenio
spelling cern-19575102023-03-14T19:32:09Zdoi:10.1103/PhysRevD.91.037501http://cds.cern.ch/record/1957510engUzhinsky, V.Galoyan, A.Effect of $uu$ diquark suppression in proton splitting in Monte Carlo event generatorsParticle Physics - PhenomenologyMonte Carlo event generators assume that protons split into (uu)-diquarks and d-quarks with a probability of 1/3 in strong interactions. It is shown in this paper that using a value of 1/6 for the probability allows one to describe at a semi-quantitative level the NA49 Collaboration data for $p+p\rightarrow p+X$ reactions at 158 GeV/c. The Fritiof (FTF) model of Geant4 was used to simulate the reactions. The reduced weight of the (uu)-diquarks in protons is expected in the instanton model.<p>Monte Carlo event generators assume that protons split into (uu)-diquarks and d-quarks with a probability of <inline-formula><mml:math display="inline"><mml:mrow><mml:mn>1</mml:mn><mml:mo>/</mml:mo><mml:mn>3</mml:mn></mml:mrow></mml:math></inline-formula> in strong interactions. It is shown in this paper that using a value of <inline-formula><mml:math display="inline"><mml:mrow><mml:mn>1</mml:mn><mml:mo>/</mml:mo><mml:mn>6</mml:mn></mml:mrow></mml:math></inline-formula> for the probability allows one to describe at a semi-quantitative level the NA49 Collaboration data for <inline-formula><mml:math display="inline"><mml:mi>p</mml:mi><mml:mo>+</mml:mo><mml:mi>p</mml:mi><mml:mo stretchy="false">→</mml:mo><mml:mi>p</mml:mi><mml:mo>+</mml:mo><mml:mi>X</mml:mi></mml:math></inline-formula> reactions at <inline-formula><mml:math display="inline"><mml:mrow><mml:mn>158</mml:mn><mml:mtext> </mml:mtext><mml:mtext> </mml:mtext><mml:mi>GeV</mml:mi><mml:mo>/</mml:mo><mml:mi mathvariant="normal">c</mml:mi></mml:mrow></mml:math></inline-formula>. The Fritiof (FTF) model of Geant4 was used to simulate the reactions. The reduced weight of the (uu)-diquarks in protons is expected in the instanton model.</p>Monte Carlo event generators assume that protons split into (uu)-diquarks and d-quarks with a probability of 1/3 in strong interactions. It is shown in this paper that using a value of 1/6 for the probability allows one to describe at a semi-quantitative level the NA49 Collaboration data for $p+p\rightarrow p+X$ reactions at 158 GeV/c. The Fritiof (FTF) model of Geant4 was used to simulate the reactions. The reduced weight of the (uu)-diquarks in protons is expected in the instanton model.arXiv:1410.6612oai:cds.cern.ch:19575102014-10-24
spellingShingle Particle Physics - Phenomenology
Uzhinsky, V.
Galoyan, A.
Effect of $uu$ diquark suppression in proton splitting in Monte Carlo event generators
title Effect of $uu$ diquark suppression in proton splitting in Monte Carlo event generators
title_full Effect of $uu$ diquark suppression in proton splitting in Monte Carlo event generators
title_fullStr Effect of $uu$ diquark suppression in proton splitting in Monte Carlo event generators
title_full_unstemmed Effect of $uu$ diquark suppression in proton splitting in Monte Carlo event generators
title_short Effect of $uu$ diquark suppression in proton splitting in Monte Carlo event generators
title_sort effect of $uu$ diquark suppression in proton splitting in monte carlo event generators
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1103/PhysRevD.91.037501
http://cds.cern.ch/record/1957510
work_keys_str_mv AT uzhinskyv effectofuudiquarksuppressioninprotonsplittinginmontecarloeventgenerators
AT galoyana effectofuudiquarksuppressioninprotonsplittinginmontecarloeventgenerators