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
Limit on the production of a light vector gauge boson in phi meson decays with the KLOE detector
Show others and affiliations
2013 (English)In: Physics Letters B, ISSN 0370-2693, E-ISSN 1873-2445, Vol. 720, no 1-3, 111-115 p.Article in journal (Refereed) Published
Abstract [en]

We present a new limit on the production of a light dark-force mediator with the KLOE detector at DA Phi NE. This boson, called U, has been searched for in the decay phi -> eta U, U -> e(+)e(-), analyzing the. decay eta -> pi(0)pi(0)pi(0) in a data sample of 1.7 fb(-1). No structures are observed in the e(+)e(-) invariant mass distribution over the background. This search is combined with a previous result obtained from the decay eta -> pi(+)pi(-)pi(0), increasing the sensitivity. We set an upper limit at 90% C.L. on the ratio between the U boson coupling constant and the fine structure constant of alpha'/alpha < 1.7 x 10(-5) for 30 < M-U < 400 MeV and alpha'/alpha <= 8 x 10(-6) for the sub-region 50 < M-U <210 MeV. This result assumes the Vector Meson Dominance expectations for the phi eta gamma* transition form factor. The dependence of this limit on the transition form factor has also been studied.

Place, publisher, year, edition, pages
2013. Vol. 720, no 1-3, 111-115 p.
Keyword [en]
e(+)e(-) Collisions, Dark forces, Gauge vector boson
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:uu:diva-198920DOI: 10.1016/j.physletb.2013.01.067ISI: 000316513500009OAI: oai:DiVA.org:uu-198920DiVA: diva2:619065
Available from: 2013-05-01 Created: 2013-04-29 Last updated: 2017-12-06Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Authority records BETA

Balkeståhl, Li CaldeiraHeijkenskjöld, LenaHöistad, BoJacewicz, MarekJohansson, TordKupsc, AndrzejWolke, Magnus

Search in DiVA

By author/editor
Balkeståhl, Li CaldeiraHeijkenskjöld, LenaHöistad, BoJacewicz, MarekJohansson, TordKupsc, AndrzejWolke, Magnus
By organisation
Nuclear PhysicsHigh Energy Physics
In the same journal
Physics Letters B
Natural Sciences

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 922 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