Chapter

From Extra Dimensions to New Forces

Gian Francesco Giudice

in A Zeptospace Odyssey: A Journey into the Physics of the LHC

Published in print December 2009 | ISBN: 9780199581917
Published online February 2010 | e-ISBN: 9780191723001 | DOI: http://dx.doi.org/10.1093/acprof:oso/9780199581917.003.0011
From Extra Dimensions to New Forces

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This chapter starts with a description of the intellectual investigations in worlds with extra spatial dimensions. It briefly introduces the idea of Kaluza–Klein theories and space compactification. Recent research has shown that extra dimensions may provide a solution to the naturalness problem. The most promising proposals are those of large extra dimensions and warped extra dimensions. The conceptual foundations of these theories are discussed, explaining the role of branes as a way of confining matter and forces. Finally, the chapter describes how LHC experiments can obtain empirical evidence in favour of the existence of extra spatial dimensions.

Keywords: extra dimensions; Kaluza–Klein theory; large extra dimensions; warped extra dimensions; branes; technicolour

Chapter.  5313 words.  Illustrated.

Subjects: Astronomy and Astrophysics

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