Measurement of F{sub 2}{sup cc-bar} and F{sub 2}{sup bb-bar} at Low and High Q2 using the H1 Vertex Detector

Journal Article · Thu Oct 06 00:00:00 EDT 2005 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2122181· OSTI ID:20726588

Klimkovich, Tatsiana ^[1]

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1. DESY, Notkestr. 85, 22607 Hamburg (Germany)

Measurements are presented of inclusive charm and beauty cross sections in e+p collisions at HERA for values of photon virtuality 3.5 {<=} Q2 {<=} 60 GeV2 and of the Bjorken scaling variable 0.0002 {<=} x {<=} 0.005 using a method based on the impact parameter, in the transverse plane, of tracks to the primary vertex, as measured by the H1 vertex detector. Values for the structure functions F{sub 2}{sup cc-bar}) and F{sub 2}{sup bb-bar} are obtained and presented together with recently published high Q2 measurements. This is the first measurement of F{sub 2}{sup bb-bar} in this kinematic range. The results are found to be compatible with the predictions of perturbative quantum chromodynamics and with previous measurements of F{sub 2}{sup cc-bar}.

• OSTI ID: 20726588
• Journal Information: AIP Conference Proceedings, Vol. 792, Issue 1; Conference: DIS 2005: 13. international workshop on deep inelastic scattering, Madison, WI (United States), 27 Apr - 1 May 2005; Other Information: DOI: 10.1063/1.2122181; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BEAUTY PARTICLES
CHARM PARTICLES
CROSS SECTIONS
DEEP INELASTIC SCATTERING
FOUR MOMENTUM TRANSFER
HERA STORAGE RING
IMPACT PARAMETER
MULTIPARTICLE SPECTROMETERS
PARTICLE IDENTIFICATION
PARTICLE TRACKS
PHOTONS
QUANTUM CHROMODYNAMICS
QUARKS
STRUCTURE FUNCTIONS