## Files in this item

FilesDescriptionFormat

application/pdf

449208.pdf (8MB)
PresentationPDF

application/pdf

1224.pdf (17kB)
AbstractPDF

## Description

 Title: BOUNDS ON THE NUMBER AND SIZE OF EXTRA DIMENSIONS FROM MOLECULAR SPECTROSCOPY Author(s): Salumbides, Edcel John Contributor(s): Ubachs, Wim; Gato-Rivera, Beatriz; Schellekens, Bert Subject(s): Mini-symposium: High-Precision Spectroscopy Abstract: Modern string theories, which seek to produce a consistent description of physics beyond the Standard Model that also includes the gravitational interaction, appear to be most consistent if a large number of dimensions are postulated. For example the mysterious M-theory, which generalizes all consistent versions of superstring theories, require 11 dimensions. We demonstrate that investigations of quantum level energies in simple molecular systems provide a testing ground to constrain the size of compactified extra dimensions, for example those proposed in the ADD [1] and RS scenarios [2]. This is made possible by the recent progress in precision metrology with ultrastable lasers on energy levels in neutral molecular hydrogen (H$_2$, HD and D$_2$) [3] and the molecular hydrogen ions (H$_2^+$, HD$^+$ and D$_2^+$) [4]. Comparisons between experiment and quantum electrodynamics calculations for these molecular systems can be interpreted in terms of probing large extra dimensions, under which conditions gravity will become much stronger. Molecules are a probe of space-time geometry at typical distances where chemical bonds are effective, i.e. at length scales of an AA. [1] N. Arkani-Hamed, S. Dimopoulos and G. Dvali, Phys. Lett. B 429, 263 (1998) [2] L. Randall and R. Sundrum, Phys. Rev. Lett. 83, 3370 (1999). [3] G. Dickenson et al., Phys. Rev. Lett. 110, 193601 (2013). [4] J. C. J. Koelemeij et al., Phys. Rev. Lett. 98, 173002 (2007). Issue Date: 22-Jun-15 Publisher: International Symposium on Molecular Spectroscopy Citation Info: ACS Genre: CONFERENCE PAPER/PRESENTATION Type: Text Language: English URI: http://hdl.handle.net/2142/79310 Date Available in IDEALS: 2016-01-05
﻿