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Universal extra dimensions and Z -> b(b)over-bar
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Universal extra dimensions and Z -> b(b)over-bar
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| dc.contributor.author | Oliver Guillén, José Francisco | |
| dc.contributor.author | Papavassiliou, Joannis | |
| dc.contributor.author | Santamaria, Arcadi | |
| dc.date.accessioned | 2015-04-10T08:34:42Z | |
| dc.date.available | 2015-04-10T08:34:42Z | |
| dc.date.issued | 2003 | |
| dc.identifier.citation | Oliver Guillén, José Francisco; Papavassiliou, Joannis; Santamaria, Arcadi (2003) Universal extra dimensions and Z -> b(b)over-bar Physical Review D 67 5 056002 | |
| dc.identifier.uri | http://hdl.handle.net/10550/43009 | |
| dc.description.abstract | We study, at the one loop level, the dominant contributions from a single universal extra dimension to the process (Z\to b\bar{b}). By resorting to the gaugeless limit of the theory we explain why the result is expected to display a strong dependence on the mass of the top-quark, not identified in the early literature. A detailed calculation corroborates this expectation, giving rise to a lower bound for the compactification scale which is comparable to that obtained from the ρ parameter. An estimate of the subleading corrections is furnished, together with a qualitative discussion on the difference between the present results and those derived previously for the non-universal case. | |
| dc.language.iso | eng | |
| dc.relation.ispartof | Physical Review D, 2003, vol. 67, num. 5, p. 056002 | |
| dc.subject | Física | |
| dc.title | Universal extra dimensions and Z -> b(b)over-bar | |
| dc.type | journal article | es_ES |
| dc.date.updated | 2015-04-10T08:34:42Z | |
| dc.identifier.doi | 10.1103/PhysRevD.67.056002 | |
| dc.identifier.idgrec | 004848 | |
| dc.rights.accessRights | open access | es_ES |
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