In particle physics, models with universal extra dimensions include one or more spatial dimensions beyond the three spatial and one temporal dimensions that are observed.
Models with universal extra dimensions, studied in 2001[1] assume that all fields propagate universally in the extra dimensions; in contrast, the ADD model requires that the fields of the Standard Model be confined to a four-dimensional membrane, while only gravity propagates in the extra dimensions.
The universal extra dimensions are assumed to be compactified with radii much larger than the traditional Planck length, although smaller than in the ADD model, ~10−18 m.[2] Generically, the—so far unobserved—Kaluza–Klein resonances of the Standard Model fields in such a theory would appear at an energy scale that is directly related to the inverse size ("compactification scale") of the extra dimension,
The experimental bounds (based on Large Hadron Collider data) on the compactification scale of one or two universal extra dimensions are about 1 TeV.[3] Other bounds come from electroweak precision measurements at the Z pole, the muon's magnetic moment, and limits on flavor-changing neutral currents, and reach several hundred GeV. Using universal extra dimensions to explain dark matter yields an upper limit on the compactification scale of several TeV.
^ Appelquist, Thomas; Cheng, Hsin-Chia; Dobrescu, Bogdan A. (2001). "Bounds on universal extra dimensions". Physical Review D. 64 (3): 035002. arXiv:hep-ph/0012100. Bibcode:2001PhRvD..64c5002A. doi:10.1103/PhysRevD.64.035002. S2CID 119009382.
^Sabine Hossenfelder, "Extra Dimensions", Backreaction, 8 July 2006 (accessed 13 March 2009).
^ Servant, Geraldine (2014). "Status report on Universal Extra Dimensions after LHC8". Modern Physics Letters A. 30 (15): 1540011. arXiv:1401.4176. Bibcode:2015MPLA...3040011S. doi:10.1142/S0217732315400118. S2CID 119115053.
Referencesedit
Rizzo, Thomas G. (2001). "Probes of universal extra dimensions at colliders". Physical Review D. 64 (9): 095010. arXiv:hep-ph/0106336. Bibcode:2001PhRvD..64i5010R. doi:10.1103/PhysRevD.64.095010. S2CID 18804645.
Macesanu, C.; McMullen, C. D.; Nandi, S. (2002). "Collider implications of universal extra dimensions". Physical Review D. 66 (1): 015009. arXiv:hep-ph/0201300. Bibcode:2002PhRvD..66a5009M. doi:10.1103/PhysRevD.66.015009. S2CID 14860173.
December 20, 2023
universal, extra, dimensions, particle, physics, models, with, universal, extra, dimensions, include, more, spatial, dimensions, beyond, three, spatial, temporal, dimensions, that, observed, contents, overview, also, notes, referencesoverview, editmodels, with. In particle physics models with universal extra dimensions include one or more spatial dimensions beyond the three spatial and one temporal dimensions that are observed Contents 1 Overview 2 See also 3 Notes 4 ReferencesOverview editModels with universal extra dimensions studied in 2001 1 assume that all fields propagate universally in the extra dimensions in contrast the ADD model requires that the fields of the Standard Model be confined to a four dimensional membrane while only gravity propagates in the extra dimensions The universal extra dimensions are assumed to be compactified with radii much larger than the traditional Planck length although smaller than in the ADD model 10 18 m 2 Generically the so far unobserved Kaluza Klein resonances of the Standard Model fields in such a theory would appear at an energy scale that is directly related to the inverse size compactification scale of the extra dimension M KK R 1 displaystyle M text KK approx R 1 nbsp The experimental bounds based on Large Hadron Collider data on the compactification scale of one or two universal extra dimensions are about 1 TeV 3 Other bounds come from electroweak precision measurements at the Z pole the muon s magnetic moment and limits on flavor changing neutral currents and reach several hundred GeV Using universal extra dimensions to explain dark matter yields an upper limit on the compactification scale of several TeV See also editLarge extra dimensions Kaluza Klein theory Randall Sundrum modelNotes edit Appelquist Thomas Cheng Hsin Chia Dobrescu Bogdan A 2001 Bounds on universal extra dimensions Physical Review D 64 3 035002 arXiv hep ph 0012100 Bibcode 2001PhRvD 64c5002A doi 10 1103 PhysRevD 64 035002 S2CID 119009382 Sabine Hossenfelder Extra Dimensions Backreaction 8 July 2006 accessed 13 March 2009 Servant Geraldine 2014 Status report on Universal Extra Dimensions after LHC8 Modern Physics Letters A 30 15 1540011 arXiv 1401 4176 Bibcode 2015MPLA 3040011S doi 10 1142 S0217732315400118 S2CID 119115053 References editRizzo Thomas G 2001 Probes of universal extra dimensions at colliders Physical Review D 64 9 095010 arXiv hep ph 0106336 Bibcode 2001PhRvD 64i5010R doi 10 1103 PhysRevD 64 095010 S2CID 18804645 Macesanu C McMullen C D Nandi S 2002 Collider implications of universal extra dimensions Physical Review D 66 1 015009 arXiv hep ph 0201300 Bibcode 2002PhRvD 66a5009M doi 10 1103 PhysRevD 66 015009 S2CID 14860173 Retrieved from https en wikipedia org w index php title Universal extra dimensions amp oldid 1063282881, wikipedia, wiki, book, books, library,
