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Title: Electric quadrupole and magnetic octupole moments of the Δ

Using a covariant spectator constituent quark model we predict an electric quadrupole moment -0.042 efm2 and a magnetic octupole moment -0.0035 efm3 for the Delta+ excited state of the nucleon.
Authors:
 [1] ;  [2] ;  [3]
  1. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); Center of Physical and Theoretical Particles, Lisboa (Portugal)
  2. Center of Physical and Theoretical Particles, Lisboa (Portugal); Univ. of Lisbon (Portugal). Inst. for Superior Technology
  3. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); College of William and Mary, Williamsburg, VA (United States)
Publication Date:
OSTI Identifier:
979696
Report Number(s):
JLAB-THY--09-951; DOE/OR/23177--0639
Journal ID: ISSN 0370-2693; TRN: US1003375
Grant/Contract Number:
AC05-06OR23177
Type:
Accepted Manuscript
Journal Name:
Physics Letters. Section B
Additional Journal Information:
Journal Volume: 678; Journal Issue: 4; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Research Org:
Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; EXCITED STATES; OCTUPOLES; QUADRUPOLE MOMENTS; QUADRUPOLES; QUARK MODEL