Transverse mass for pairs of gluinos

被引:160
作者
Cho, Won Sang [1 ]
Choi, Kiwoon [1 ]
Kim, Yeong Gyun [1 ,2 ]
Park, Chan Beom [1 ]
机构
[1] Korea Adv Inst Sci & Technol, Dept Phys, Taejon 305017, South Korea
[2] Sejong Univ, ARCSEC, Seoul 143747, South Korea
关键词
D O I
10.1103/PhysRevLett.100.171801
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We introduce a new observable, "gluino m(T2)," which is an application of the Cambridge m(T2) variable to the process where gluinos are pair produced in a proton-proton collision and each gluino subsequently decays into two quarks and one lightest supersymmetric particle, i.e., (g) over tilde (g) over tilde -> qq (chi) over tilde (0)(1)qq (chi) over tilde (0)(1). We show that the gluino m(T2) can be utilized to measure the gluino mass and the lightest neutralino mass separately and also the 1st and 2nd generation squark masses if squarks are lighter than the gluino, thereby providing a good first look at the pattern of sparticle masses experimentally.
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页数:4
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