English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/151925
logo share SHARE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Particle-physics constraints on multifractal spacetimes

AuthorsCalcagni, Gianluca ; Nardelli, Giuseppe; Rodriguez-Fernandez, D.
Issue Date8-Jan-2016
PublisherAmerican Physical Society
CitationPhysical Review D - Particles, Fields, Gravitation and Cosmology 93: 025005 (2016)
AbstractWe study electroweak interactions in the multiscale theory with q-derivatives, a framework where spacetime has the typical features of a multifractal. In the simplest case with only one characteristic time, length, and energy scale t∗, ∗, and E∗, we consider (i) the muon decay rate and (ii) the Lamb shift in the hydrogen atom, and constrain the corrections to the ordinary results. We obtain the independent absolute upper bounds (i) t∗<10-13 s and (ii) E∗>35 MeV. Under some mild theoretical assumptions, the Lamb shift alone yields the even tighter ranges t∗<10-27 s, ∗<10-19 m, and E∗>450 GeV. To date, these are the first robust constraints on the scales at which the multifractal features of the geometry can become important in a physical process. © 2016 American Physical Society
Description5 pags.; 1 tab. ; Erratum Phys. Rev. D 94, 049906 (2016); corrected 19 August 2016
Publisher version (URL)https://doi.org/10.1103/PhysRevD.93.025005
Identifiersdoi: 10.1103/PhysRevD.93.025005
issn: 1550-2368
Appears in Collections:(CFMAC-IEM) Artículos
Files in This Item:
File Description SizeFormat 
Particle-physics.pdf124,76 kBAdobe PDFThumbnail
Show full item record
Review this work

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.