Exotic physics: search for scalar leptoquark pairs decaying to nu nu-bar qq-bar in p anti-p collisions at s**(1/2) = 1.96 tev

Acosta, D. ; Collaboration, The CDF

Lawrence Berkeley National Laboratory

关键词: Decay;    Forecasting;    Fermilab Tevatron;    43 Particle Accelerators;    Quarks;   

DOI  :  10.2172/842928
RP-ID  :  LBNL--58142
RP-ID  :  AC03-76SF00098
RP-ID  :  842928

美国|英语

来源: UNT Digital Library

【 摘 要 】

We report on a search for the pair production of scalar leptoquarks, LQ, using 191 pb{sup -1} of proton-antiproton collision data recorded by the CDF experiment during Run II of the Tevatron. The leptoquarks are sought via their decay into a neutrino and quark yielding missing transverse energy and several jets of large transverse energy. No evidence for leptoquark production is observed, and limits are set on {sigma}(p{bar p} {yields} LQ{ovr OQ}X {yields} v{bar v}q{bar q}X). Using a next-to-leading order theoretical prediction of the cross section for scalar leptoquark production, we exclude first-generation leptoquarks in the mass interval 78 to 117 GeV/c{sup 2} at the 95% confidence level for BR(LQ {yields} vq) = 100%.