Unitarily Inequivalent Vacua and Long-Range Forces: Phenomenology with Scalar Boson Mass-Shift

Abstract

We explore the impact of a sudden shift in the mass of a scalar boson field on long-range forces mediated by this field under the framework of unitarily inequivalent vacua. Since the search for new long-range forces is an active experimental area probing physics beyond the Standard Model, the consequence of a non-trivial vacuum state of a scalar boson on these experiments is elucidated. We show that while the mass shift affects the one-boson exchange potential, the Casimir force remains only dependent on the vacuum state.

17 pages, 2 figures, uses ws-mpla.cls, small changes and additional references added in response to referee comments

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