Jet Production and Parton Dynamics in Deep Inelastic Scattering

Mattias Davidsson

Jet Production and Parton Dynamics in Deep Inelastic Scattering

Mattias Davidsson

Particle Physics

Research output: Thesis › Doctoral Thesis (monograph)

Abstract

Hard QCD processes have been studied by measuring the di-jet event rate for deep inelastic scattering in the kinematic range 5 < Q2 < 100 GeV2 and 10-4 < x < 10-2. The jets we re reconstructed using the cone algorithm in the hadronic center-of-mass frame in which the transverse momentum of the jets were required to be greater than 5 GeV. The result of the investigation is that using Leading Order QCD calculations together with pure DGLAP parton showering we can not reproduce the relative rate of hard di-jet events in DIS. To accomplish this the transverse momentum ordering in the parton ladder has to be broken as can be achieved by the inclusion of a component which resolves the photon in the DGLAP picture, or by using the Color Dipole Model for the higher order QCD radiation.

Original language	English
Qualification	Doctor
Awarding Institution	Particle Physics
Supervisors/Advisors	[unknown], [unknown], Supervisor, External person
Award date	2001 Sept 21
Publisher	Mattias Davidsson, Vårfrugatan 8A G2:2, 223 50 Lund, Sweden,
ISBN (Print)	91-628-4941-7
Publication status	Published - 2001

Bibliographical note

Defence details

Date: 2001-09-21
Time: 10:15
Place: Lecture hall B Department of Physics Lund.

External reviewer(s)

Name: Schlenstedt, Stefan
Title: Prof
Affiliation: [unknown]

---

Subject classification (UKÄ)

Subatomic Physics

Keywords

quantum field theory
Elementary particle physics
DIS
ep scattering
HERA
H1
jets
small-x
Parton Dynamics
Elementarpartikelfysik
kvantfältteori
Fysicumarkivet A:2001:Davidsson

Cite this

@phdthesis{2f534dc340cd47eb9d05bf5b8454b729,

title = "Jet Production and Parton Dynamics in Deep Inelastic Scattering",

abstract = "Hard QCD processes have been studied by measuring the di-jet event rate for deep inelastic scattering in the kinematic range 5 < Q2 < 100 GeV2 and 10-4 < x < 10-2. The jets we re reconstructed using the cone algorithm in the hadronic center-of-mass frame in which the transverse momentum of the jets were required to be greater than 5 GeV. The result of the investigation is that using Leading Order QCD calculations together with pure DGLAP parton showering we can not reproduce the relative rate of hard di-jet events in DIS. To accomplish this the transverse momentum ordering in the parton ladder has to be broken as can be achieved by the inclusion of a component which resolves the photon in the DGLAP picture, or by using the Color Dipole Model for the higher order QCD radiation.",

keywords = "quantum field theory, Elementary particle physics, DIS, ep scattering, HERA, H1, jets, small-x, Parton Dynamics, Elementarpartikelfysik, kvantf{\"a}ltteori, Fysicumarkivet A:2001:Davidsson",

author = "Mattias Davidsson",

note = "Defence details Date: 2001-09-21 Time: 10:15 Place: Lecture hall B Department of Physics Lund. External reviewer(s) Name: Schlenstedt, Stefan Title: Prof Affiliation: [unknown] ---",

year = "2001",

language = "English",

isbn = "91-628-4941-7",

publisher = "Mattias Davidsson, V{\aa}rfrugatan 8A G2:2, 223 50 Lund, Sweden,",

school = "Particle Physics",

}

TY - THES

T1 - Jet Production and Parton Dynamics in Deep Inelastic Scattering

AU - Davidsson, Mattias

N1 - Defence details Date: 2001-09-21 Time: 10:15 Place: Lecture hall B Department of Physics Lund. External reviewer(s) Name: Schlenstedt, Stefan Title: Prof Affiliation: [unknown] ---

PY - 2001

Y1 - 2001

N2 - Hard QCD processes have been studied by measuring the di-jet event rate for deep inelastic scattering in the kinematic range 5 < Q2 < 100 GeV2 and 10-4 < x < 10-2. The jets we re reconstructed using the cone algorithm in the hadronic center-of-mass frame in which the transverse momentum of the jets were required to be greater than 5 GeV. The result of the investigation is that using Leading Order QCD calculations together with pure DGLAP parton showering we can not reproduce the relative rate of hard di-jet events in DIS. To accomplish this the transverse momentum ordering in the parton ladder has to be broken as can be achieved by the inclusion of a component which resolves the photon in the DGLAP picture, or by using the Color Dipole Model for the higher order QCD radiation.

AB - Hard QCD processes have been studied by measuring the di-jet event rate for deep inelastic scattering in the kinematic range 5 < Q2 < 100 GeV2 and 10-4 < x < 10-2. The jets we re reconstructed using the cone algorithm in the hadronic center-of-mass frame in which the transverse momentum of the jets were required to be greater than 5 GeV. The result of the investigation is that using Leading Order QCD calculations together with pure DGLAP parton showering we can not reproduce the relative rate of hard di-jet events in DIS. To accomplish this the transverse momentum ordering in the parton ladder has to be broken as can be achieved by the inclusion of a component which resolves the photon in the DGLAP picture, or by using the Color Dipole Model for the higher order QCD radiation.

KW - quantum field theory

KW - Elementary particle physics

KW - DIS

KW - ep scattering

KW - HERA

KW - H1

KW - jets

KW - small-x

KW - Parton Dynamics

KW - Elementarpartikelfysik

KW - kvantfältteori

KW - Fysicumarkivet A:2001:Davidsson

M3 - Doctoral Thesis (monograph)

SN - 91-628-4941-7

PB - Mattias Davidsson, Vårfrugatan 8A G2:2, 223 50 Lund, Sweden,

ER -

Jet Production and Parton Dynamics in Deep Inelastic Scattering

Abstract

Bibliographical note

Subject classification (UKÄ)

Keywords

Fingerprint

Cite this