Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/172715
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Björkeroth, Fredrik | - |
dc.contributor.author | Luzio, Luca Di | - |
dc.contributor.author | Mescia, Federico | - |
dc.contributor.author | Nardi, Enrico | - |
dc.contributor.author | Panci, Paolo | - |
dc.contributor.author | Ziegler, Robert | - |
dc.date.accessioned | 2020-12-14T12:00:15Z | - |
dc.date.available | 2020-12-14T12:00:15Z | - |
dc.date.issued | 2020-02-19 | - |
dc.identifier.issn | 2470-0010 | - |
dc.identifier.uri | http://hdl.handle.net/2445/172715 | - |
dc.description.abstract | The strongest upper bounds on the axion mass come from astrophysical observations like the neutrino burst duration of SN1987A, which depends on the axion couplings to nucleons, or the white-dwarf cooling rates and red-giant evolution, which involve the axion-electron coupling. It has been recently argued that in variants of Dine-Fischler-Srednicki-Zhitnitsky (DFSZ) models with generation-dependent Peccei-Quinn charges an approximate axion-nucleon decoupling can occur, strongly relaxing the SN1987A bound. However, as in standard DFSZ models, the axion remains in general coupled to electrons, unless an ad hoc cancellation is engineered. Here we show that axion-electron decoupling can be implemented without extra tunings in DFSZ-like models with three Higgs doublets. Remarkably, the numerical value of the quark mass ratio m u / m d ∼ 1 / 2 is crucial to open up this possibility. | - |
dc.format.extent | 5 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | American Physical Society | - |
dc.relation.isformatof | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.101.035027 | - |
dc.relation.ispartof | Physical Review D, 2020, vol. 101, num. 3, p. 035027 | - |
dc.relation.uri | https://doi.org/10.1103/PhysRevD.101.035027 | - |
dc.rights | cc by (c) American Physical Society, 2020 | - |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es/ | - |
dc.source | Articles publicats en revistes (Física Quàntica i Astrofísica) | - |
dc.subject.classification | Física de partícules | - |
dc.subject.classification | Anomalies (Astronomia) | - |
dc.subject.other | Particle physics | - |
dc.subject.other | Anomalies (Astronomy) | - |
dc.title | Axion-electron decoupling in nucleophobic axion models | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 699661 | - |
dc.date.updated | 2020-12-14T12:00:15Z | - |
dc.relation.projectID | info:eu-repo/grantAgreement/EC/H2020/840791/EU//AXIONRUSH | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB)) Articles publicats en revistes (Física Quàntica i Astrofísica) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
699661.pdf | 1.18 MB | Adobe PDF | View/Open |
This item is licensed under a
Creative Commons License