Measurement of the spin and parity of the H -> ZZ* -> new boson observed at 125 GeV in the H -> ZZ* -> 4l search at ATLAS

被引：0
|
作者：
Ippolito, V. [1 ,2 ]
机构：
[1] Univ Roma La Sapienza, Rome, Italy
[2] INFN, Sez Roma, Rome, Italy
来源：
NUOVO CIMENTO C-COLLOQUIA AND COMMUNICATIONS IN PHYSICS | 2014年 / 37卷 / 01期
关键词：
D O I：
10.1393/ncc/i2014-11715-5
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Most recent results on spin-parity (JP) measurement of the new particle observed in the Higgs boson search in the H -> ZZ* -> 4l decay channel are presented. The JP state of this boson is probed exploiting two complementary multivariate analysis techniques (using matrix element description of the process or a Boosted Decision Tree discriminant). Results, based on about 25 fb(-1) collected in pp collisions at root s - 7 and 8 Tev, show how the 0(+) state is favoured against specific 0, 2 I, 2 and spin 1 hypotheses.
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页码：295 / 296
页数：2
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