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.

引用

页码：295 / 296

页数：2

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