Published 2008 | Version v1
Journal article Metadata-only

W+-boson helicity fractions in the decay t→b+W++g for hard and noncollinear gluons

Creators

  • 1. Tartu Uelikooli Teoreetilise Fueuesika Instituut, Taehe 4, EE-51010 Tartu (Estonia)
  • 2. Institut fuer Physik, 55099 Mainz (Germany)
  • 3. Department of Physics, Xinjiang University, 830046 Urumqi (China)

Description

We calculate the helicity fractions of W+-bosons from the one gluon decay t→b+W++g. In order to stay away from the IR and mass singular regions of phase space we cut on the invariant mass of the gluon plus bottom quark system: (pb+pg)2≥mt2zc. We present analytical results for the three helicity rates ΓL, Γ+ and Γ- (longitudinal, transverse-plus and transverse-minus) in their dependence on the cut parameter zc

Availability note (English)

Also available online: http://www.dpg-tagungen.de/index_en.html

Additional details

Identifiers

URL
http://www.dpg-tagungen.de/index_en.html;

Publishing Information

Journal Title
Verhandlungen der Deutschen Physikalischen Gesellschaft
Journal Volume
43
Journal Issue
2
Journal Page Range
[1 p.]
ISSN
0420-0195
CODEN
VDPEAZ

Conference

Title
2008 Spring meeting of the professional associations Extraterrestrial Physics, Gravitation and Relativity Theory, Particle Physics, Theoretical and Mathematical Basics of Physics of the German Physical Society (DPG)
Original Conference Title
Fruehjahrstagung 2008 der Fachverbaende Extraterrestrische Physik, Gravitation und Relativitaetstheorie, Teilchenphysik, Theoretische und Mathematische Grundlagen der Physik der Deutschen Physikalischen Gesellschaft e.V. (DPG)
Dates
3-7 Mar 2008
Place
Freiburg (Germany)

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
39118788
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
EFFECTIVE MASS; HELICITY; PARTICLE WIDTHS; POLARIZED PRODUCTS; SPIN ORIENTATION; T QUARKS; WEAK PARTICLE DECAY
Descriptors DEC
DECAY; ELEMENTARY PARTICLES; FERMIONS; MASS; ORIENTATION; PARTICLE DECAY; PARTICLE PROPERTIES; POSTULATED PARTICLES; QUARKS; TOP PARTICLES

Optional Information

Notes
Session: T 11 Mo 18:00