Search for high-mass resonances decaying to dilepton final states in pp collisions at root s=7 TeV with the ATLAS detector
Number of Authors: 2886
2012 (English)In: Journal of High Energy Physics (JHEP), ISSN 1029-8479, E-ISSN 1126-6708, no 11, 138- p.Article in journal (Refereed) Published
The ATLAS detector at the Large Hadron Collider is used to search for high-mass resonances decaying to an electron-positron pair or a muon-antimuon pair. The search is sensitive to heavy neutral Z' gauge bosons, Randall-Sundrum gravitons, Z* bosons, techni-mesons, Z/gamma bosons, and bosons predicted by Torsion models. Results are presented based on an analysis of pp collisions at a center-of-mass energy of 7 TeV corresponding to an integrated luminosity of 4.9 fb(-1) in the e(+)e(-) channel and 5.0 fb(-1) in the mu(+)mu(-) channel. A Z' boson with Standard Model-like couplings is excluded at 95% confidence level for masses below 2.22 TeV. A Randall-Sundrum graviton with coupling k root M-P1 = 0.1 is excluded at 95% confidence level for masses below 2.16 Tev. Limits on the other models are also presented, including Technicolor and Minimal Z' Models.
Place, publisher, year, edition, pages
2012. no 11, 138- p.
IdentifiersURN: urn:nbn:se:kth:diva-117625DOI: 10.1007/JHEP11(2012)138ISI: 000312484500008ScopusID: 2-s2.0-84876831974OAI: oai:DiVA.org:kth-117625DiVA: diva2:602352
FunderEU, European Research CouncilSwedish Research Council
QC 20130201. Author count: 28862013-02-012013-02-012013-02-01Bibliographically approved