We report the results of a search for a narrow resonance in electron-positron events in the invariant mass range of 150-950GeV/c2 using 1.3fb-1 of pp̄ collision data at s=1.96TeV collected by the CDF II detector at Fermilab. No significant evidence of such a resonance is observed and we interpret the results to exclude the standard-model-like Z′ with a mass below 923GeV/c2 and the Randall-Sundrum graviton with a mass below 807GeV/c2 for k/M̄pl=0.1, both at the 95% confidence level. Combining with diphoton data excludes the Randall-Sundrum graviton for masses below 889GeV/c2 for k/M̄pl=0.1
Search for New Physics in High Mass Electron-Positron Events in p anti-p Collisions at s**(1/2) = 1.96 TeV / L.Brigliadori;A.Castro;M.Deninno;P.Mazzanti;N.Moggi;M.Mussini;F.Rimondi;S.Zucchelli;CDF Collaboration. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - STAMPA. - 99:17(2007), pp. 171802.1-171802.7. [10.1103/PhysRevLett.99.171802]
Search for New Physics in High Mass Electron-Positron Events in p anti-p Collisions at s**(1/2) = 1.96 TeV
BRIGLIADORI, LUCA;CASTRO, ANDREA;DENINNO, MARIA MADDALENA;MOGGI, NICCOLO';MUSSINI, MANUEL;RIMONDI, FRANCO;ZUCCHELLI, STEFANO;
2007
Abstract
We report the results of a search for a narrow resonance in electron-positron events in the invariant mass range of 150-950GeV/c2 using 1.3fb-1 of pp̄ collision data at s=1.96TeV collected by the CDF II detector at Fermilab. No significant evidence of such a resonance is observed and we interpret the results to exclude the standard-model-like Z′ with a mass below 923GeV/c2 and the Randall-Sundrum graviton with a mass below 807GeV/c2 for k/M̄pl=0.1, both at the 95% confidence level. Combining with diphoton data excludes the Randall-Sundrum graviton for masses below 889GeV/c2 for k/M̄pl=0.1I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
