Title Search for new particles leading to Z+jets final states in $p\overline{p}$ collisions at $\sqrt{s}$=1.96 TeV Author Aaltonen, T. Van Remortel, N. et al. Faculty/Department Faculty of Sciences. Physics Publication type article Publication 2007 Lancaster, Pa , 2007 Subject Physics Source (journal) Physical review : D : particles and fields. - Lancaster, Pa, 1970 - 2003 Volume/pages 76(2007) :7 , p. 072006,1-072006,24 ISSN 0556-2821 ISI 000250621200011 Carrier E Target language English (eng) Full text (Publishers DOI) Affiliation University of Antwerp Abstract We present the results of a search for new particles that lead to a Z boson plus jets in pp̅ collisions at √s=1.96   TeV using the Collider Detector at Fermilab (CDF II). A data sample with a luminosity of 1.06   fb-1 collected using Z boson decays to ee and μμ is used. We describe a completely data-based method to predict the dominant background from standard model Z+jet events. This method can be similarly applied to other analyses requiring background predictions in multijet environments, as shown when validating the method by predicting the background from W+jets in tt̅ production. No significant excess above the background prediction is observed, and a limit is set using a fourth generation quark model to quantify the acceptance. Assuming BR(b′→bZ)=100% and using a leading-order calculation of the b′ cross section, b′ quark masses below 268  GeV/c2 are excluded at 95% confidence level. Full text (open access) https://repository.uantwerpen.be/docman/irua/b72cc6/a24d6b15.pdf E-info http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000250621200011&DestLinkType=RelatedRecords&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000250621200011&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000250621200011&DestLinkType=CitingArticles&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848 Handle