Published May 1, 2002 | Version v1
Report Metadata-only

The Leading Particle Effect from Heavy-Quark Recombination

Creators

Description

The leading particle effect in charm hadroproduction is an enhancement of the cross section for a charmed hadron D in the forward direction of the beam when the beam hadron has a valence parton in common with the D. The large D+/D- asymmetry observed by the E791 experiment is an example of this phenomenon. We show that the heavy-quark recombination mechanism provides an economical explanation for this effect. In particular, the D+/D- asymmetry can be fit reasonably well using a single parameter whose value is consistent with a recent determination from charm photoproduction

Availability note (English)

Available from PURL: https://www.osti.gov/servlets/purl/796059-T3K4zf/native/

Additional details

Identifiers

URL
https://www.osti.gov/servlets/purl/796059-T3K4zf/native/;

Publishing Information

Imprint Pagination
116 Kilobytes
Report number
JLAB-PHY--02-17

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
33066778
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
ASYMMETRY; CROSS SECTIONS; HADRONS; LEADING PARTICLES; PARTONS; PHOTOPRODUCTION; RECOMBINATION; VALENCE
Descriptors DEC
BASIC INTERACTIONS; ELECTROMAGNETIC INTERACTIONS; ELEMENTARY PARTICLES; INTERACTIONS; PARTICLE INTERACTIONS; PARTICLE PRODUCTION; POSTULATED PARTICLES

Optional Information

Contract/Grant/Project number
AC05-84ER40150
Notes
No journal information given for this preprint
Funding organization
USDOE Office of Energy Research ER (United States)
Secondary number(s)
DOE/ER--40150-2090; hep-ph--0205149