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New results on the neutron spin polarizabilities at low Q{sup 2}

Sulkosky, Vincent A.

AIP conference proceedings, 2011, Vol.1374 (1) [Periódico revisado por pares]

United States

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Título:
New results on the neutron spin polarizabilities at low Q{sup 2}
Autor: Sulkosky, Vincent A.
Assuntos: ACCELERATORS ; ANGULAR MOMENTUM ; BARYONS ; CEBAF ACCELERATOR ; CHIRAL SYMMETRY ; CHIRALITY ; ELECTRICAL PROPERTIES ; ELEMENTARY PARTICLES ; EVEN-ODD NUCLEI ; FERMIONS ; FOUR MOMENTUM TRANSFER ; FUNCTIONS ; HADRONS ; HELIUM 3 ; HELIUM ISOTOPES ; ISOTOPES ; LIGHT NUCLEI ; LINEAR ACCELERATORS ; MOMENTUM TRANSFER ; NEUTRONS ; NUCLEI ; NUCLEONS ; PARTICLE KINEMATICS ; PARTICLE PROPERTIES ; PARTICLE STRUCTURE ; PERTURBATION THEORY ; PHYSICAL PROPERTIES ; PHYSICS OF ELEMENTARY PARTICLES AND FIELDS ; POLARIZABILITY ; POLARIZATION ; SPIN ; STABLE ISOTOPES ; STRUCTURE FUNCTIONS ; SYMMETRY
É parte de: AIP conference proceedings, 2011, Vol.1374 (1)
Descrição: Thomas Jefferson National Accelerator Facility (Jefferson Lab) has become one of the premier facilities for the study of nucleon spin structure. Over the past two decades, several high precision measurements of the polarized structure functions g1(x,Q{sup 2}) and g2(x,Q{sup 2}) have been performed that have extensively covered the region between 0.02 and 5 GeV{sup 2}. Spin moments have been formed from the measured structure functions. These proceedings will concentrate on experiment E97-110, which was performed in Hall A to study the neutron and {sup 3}He spin structure at four-momentum transfers squared (Q{sup 2}) = 0.02 - 0.26 GeV{sup 2}. This range allows us to make a benchmark-check of Chiral Perturbation Theory calculations. Previous results for the neutron spin polarizability, {delta}LT , down to 0.1 GeV{sup 2} have shown significant disagreement with the calculations. Preliminary results on the generalized spin polarizabilities, {gamma}0 and {delta}LT , for the neutron were presented at the conference and will be discussed here.
Editor: United States
Idioma: Inglês

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New results on the neutron spin polarizabilities at low Q{sup 2}

Sulkosky, Vincent A.

United States

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