TY - JOUR

T1 - Angular Inflation from Supergravity

AU - Germán, G.

AU - Mazumdar, Anupam

AU - Pérez-Lorenzana, A.

N1 - 7 pages, one figure. Final version. Title changed, two figures dropped

PY - 2002/8/20

Y1 - 2002/8/20

N2 - We study supergravity inflationary models where inflation is produced along the angular direction. For this we express the scalar component of a chiral superfield in terms of the radial and the angular components. We then express the supergravity potential in a form particularly simple for calculations involving polynomial expressions for the superpotential and Kahler potential. We show for a simple Polonyi model the angular direction may give rise to a stage of inflation when the radial field is fixed to its minimum. We obtain analytical expressions for all the relevant inflationary quantities and discuss the possibility of supersymmetry breaking in the radial direction while inflating by the angular component.

AB - We study supergravity inflationary models where inflation is produced along the angular direction. For this we express the scalar component of a chiral superfield in terms of the radial and the angular components. We then express the supergravity potential in a form particularly simple for calculations involving polynomial expressions for the superpotential and Kahler potential. We show for a simple Polonyi model the angular direction may give rise to a stage of inflation when the radial field is fixed to its minimum. We obtain analytical expressions for all the relevant inflationary quantities and discuss the possibility of supersymmetry breaking in the radial direction while inflating by the angular component.

U2 - 10.1142/S0217732302008022

DO - 10.1142/S0217732302008022

M3 - Journal article

VL - 17

JO - Modern Physics Letters A

JF - Modern Physics Letters A

SN - 0217-7323

IS - 25

M1 - 1627

ER -