uu.seUppsala University Publications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Heavy photophilic scalar at the LHC from a varying electromagnetic coupling
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Theoretical Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics. (Theoretical high energy physics)ORCID iD: 0000-0003-0452-0671
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
2017 (English)In: Nuclear Physics B, ISSN 0550-3213, E-ISSN 1873-1562, Vol. 919, 569-582 p.Article in journal (Refereed) Published
Abstract [en]

We investigate the phenomenology of a heavy scalar ϕ of the type involved in Bekenstein's framework for varying electromagnetic coupling theories, with the difference that the scalar in our model has a large mass. The model has only two free parameters, the mass Mϕ of the scalar and the scale Λ of new physics. The scalar is dominantly produced through photon-photon fusion at the LHC and leads to a diphoton final state. It can also be produced by quark-antiquark fusion in association with a photon or a fermion pair. Its dominating decay is to diphotons, but it also has a large three-body branching to a fermion pair and a photon, which can provide an interesting search channel with a dilepton-photon resonance. We derive exclusion limits on the Mϕ−Λplane from the latest 13 TeV LHC diphoton resonance search data. For a benchmark mass of Mϕ∼1 TeV, we find a lower limit on Λ of 18 TeV. We discuss the more complex possibility of varying couplings in the full electroweak theory and comment on the possibility that the new physics is related to extra dimensions or string theory.

Place, publisher, year, edition, pages
2017. Vol. 919, 569-582 p.
National Category
Subatomic Physics
Research subject
Theoretical Physics; Physics with specialization in Elementary Particle Physics
Identifiers
URN: urn:nbn:se:uu:diva-273772DOI: 10.1016/j.nuclphysb.2017.04.003ISI: 000402344700026OAI: oai:DiVA.org:uu-273772DiVA: diva2:895044
Funder
Swedish Research Council, 621-2011-5107Swedish Research Council, 2015-04814Carl Tryggers foundation , CTS- 14:206
Available from: 2016-01-18 Created: 2016-01-18 Last updated: 2017-08-10Bibliographically approved

Open Access in DiVA

fulltext(479 kB)8 downloads
File information
File name FULLTEXT01.pdfFile size 479 kBChecksum SHA-512
c342d39cdddf0414296560938275c3c49672245abc43e55ca48973a2432dde3b1afd1c6f18e20681164f0f1cfdfd5a9b2a74e0e6cd1c80b8166edb1f0054e37f
Type fulltextMimetype application/pdf

Other links

Publisher's full textarXiv:1601.00624

Authority records BETA

Danielsson, UlfEnberg, RikardIngelman, GunnarMandal, Tanumoy

Search in DiVA

By author/editor
Danielsson, UlfEnberg, RikardIngelman, GunnarMandal, Tanumoy
By organisation
Theoretical PhysicsHigh Energy Physics
In the same journal
Nuclear Physics B
Subatomic Physics

Search outside of DiVA

GoogleGoogle Scholar
Total: 8 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 594 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf