Cosmological Constant and Supergravity Soft Terms

1994/09/27 by Jihn E. Kim, Kim, Jihn E.
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies

paper · pdf · doi:10.48550/arxiv.hep-ph/9409420

openalex publication_date 1994/09/27 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

In supergravity models, the quantum correction to the vacuum energy can be of order M_I⁴, if the cutoff is of order the Planck mass M²_P and Str \cal M²≠ 0. Therefore, the tree level cosmological constant must be nonzero (probably negative). Since the current practice of calculating soft parameters in supergravity models assumes the vanishing tree level cosmological constant, the supergravity calculation must be accordingly modified. This implies that the soft parameters in supergravity has an additional contribution depending on the nonvanishing tree level cosmological constant. A simple quantum mechanical model mimicking this situation is also presented.

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