{rho} meson light-cone distribution amplitudes of leading twist reexamined

Journal Article · Thu Aug 01 00:00:00 EDT 1996 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.54.2182· OSTI ID:286427

Ball, P ^[1]; Braun, V M ^[2]

---

1. Theory Division, CERN CH-1211 Geneva 23 (Switzerland)
2. NORDITA, Blegdamsvej 17, DK-2100 Copenhagen (Denmark)

We give a complete reanalysis of the leading twist quark-antiquark light-cone distribution amplitudes of longitudinal and transverse {rho} mesons. We derive Wandzura-Wilczek-type relations between different distributions and update the coefficients in their conformal expansion using QCD sum rules, including next-to-leading order radiative corrections. We find that the distribution amplitudes of quarks inside longitudinally and transversely polarized {rho} mesons have a similar shape, which is in contradiction to previous analyses. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 286427
• Journal Information: Physical Review, D, Vol. 54, Issue 3; Other Information: PBD: Aug 1996
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
RHO-770 MESONS
QUARKS
DISTRIBUTION
QUANTUM CHROMODYNAMICS
SUM RULES
QUARK-ANTIQUARK INTERACTIONS
LIGHT CONE
AMPLITUDES
EXPANSION
RADIATIVE CORRECTIONS