Measurements of the deuteron elastic structure function

Journal Article · Mon Jun 01 04:00:00 EDT 1998 · Few Body Syst.Suppl.10:431-434,1999

OSTI ID:755566

Gomez, J

The deuteron elastic structure function A(Q{sup 2}) has been extracted in the range of 0.7 {le} Q{sup 2} {le} 6.0 (GeV/c){sup 2} from cross section measurements of elastic electron-deuteron in coincidence. Measurements of the elastic deuteron electromagnetic form factors offer unique opportunities to test models of short-range aspects of the nucleon-nucleon interaction, meson-exchange currents, isobaric configurations and, quark degrees of freedom. The elastic electron-deuteron cross section is given by d{sigma}/d{Omega} = {sigma}{sub M}[A(Q{sup 2}) + B(Q{sup 2}) tan{sup 2}({theta}/2)] where {theta} is the electron scattering angle, {sigma}{sub M} = {alpha}{sup 2}E{prime} cos{sup 2} ({theta}/2)/[4E{sup 3} sin{sup 4}({theta}/2)] is the Mott cross section, {alpha} is the fine-structure constant, E and E{prime} are the incident and scattered electron energies and Q{sup 2} = 4EE{prime} sin{sup 2}({theta}/2) is the four momentum transfer squared. The deuteron elastic structure functions A(Q {sup 2}) and B(Q{sup 2}) are given in terms of the charge, quadrupole and magnetic form factors F{sub c}(Q{sup 2}), F{sub 1}(Q{sup 2}) and F{sub m}(Q{sup 2}) by A(Q{sup 2}) = F{sub c}{sup 2}(Q{sup 2}) + (8/9){tau}{sup 2} F{sub 1}{sup 2}(Q{sup 2}) + (2/3){tau}F{sub m}{sup 2}(Q{sup 2}) and B(Q{sup 2}) = (4/3){tau}(1+{tau})F{sub m}{sup 2}(Q{sup 2}) and to resolve inconsistencies in previous data sets by measuring elastic electron-deuteron (e-d) cross sections for 0.7 {le} Q{sup 2} {le} 6.0 (GeV/c){sup 2}.

• Research Organization: Thomas Jefferson National Accelerator Facility, Newport News, VA (US)
• Sponsoring Organization: USDOE Office of Energy Research (ER) (US)
• DOE Contract Number: AC05-84ER40150
• OSTI ID: 755566
• Report Number(s): DOE/ER/40150-1456; JLAB-PHY-98-01
• Journal Information: Few Body Syst.Suppl.10:431-434,1999, Journal Name: Few Body Syst.Suppl.10:431-434,1999
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BOSON-EXCHANGE MODELS
CROSS SECTIONS
DEGREES OF FREEDOM
DEUTERONS
ELECTROMAGNETIC FORM FACTORS
ELECTRONS
FINE STRUCTURE
FORM FACTORS
FOUR MOMENTUM TRANSFER
NUCLEON-NUCLEON INTERACTIONS
QUADRUPOLES
QUARKS
SCATTERING
STRUCTURE FUNCTIONS