Breaking down the entire W boson spin observables from its decay

被引：30
作者：
Aguilar-Saavedra, J. A. [1 ]
Bernabeu, J. [2 ,3 ]
机构：
[1] Univ Granada, Dept Fis Teor & Cosmos, E-18071 Granada, Spain
[2] Univ Valencia, Dept Fis Teor, E-46100 Valencia, Spain
[3] Univ Valencia, CSIC, IFIC, E-46980 Valencia, Spain
来源：
PHYSICAL REVIEW D | 2016年 / 93卷 / 01期
关键词：
TOP-QUARK; POLARIZATIONS; ASYMMETRIES; COLLISIONS; COUPLINGS;
D O I：
10.1103/PhysRevD.93.011301
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We discuss the eight independent spin observables for the W boson in terms of its vector and tensor polarizations and identify the angular distributions and asymmetries able to separate them in collider experiments. The results are applied to the study of polarized top quark decays and diboson resonances. These novel observables are of great value for disentangling new physics mechanisms in W boson production.
引用
收藏
页数：6
相关论文
共 29 条
  • [11] Model-independent measurement of the top quark polarisation
    Aguilar-Saavedra, J. A.
    Herrero-Hahn, R. V.
    [J]. PHYSICS LETTERS B, 2013, 718 (03) : 983 - 987
  • [12] W polarisation beyond helicity fractions in top quark decays
    Aguilar-Saavedra, J. A.
    Bernabeu, J.
    [J]. NUCLEAR PHYSICS B, 2010, 840 (1-2) : 349 - 378
  • [13] [Anonymous], ATLASCONF2013032
  • [14] [Anonymous], PHYS LETT B, DOI DOI 10.1016/j.physletb.2012.08.021
  • [15] Top-quark physics at the LHC
    Bernreuther, W.
    [J]. JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 2008, 35 (08)
  • [16] A model independent spin analysis of fundamental particles using azimuthal asymmetries
    Boudjema, Fawzi
    Singh, Ritesh K.
    [J]. JOURNAL OF HIGH ENERGY PHYSICS, 2009, (07):
  • [17] Quantum interference effects among helicities at CERN LEP-II and Fermilab Tevatron
    Buckley, Matthew R.
    Heinemann, Beate
    Klemm, William
    Murayama, Hitoshi
    [J]. PHYSICAL REVIEW D, 2008, 77 (11):
  • [18] Discriminating spin through quantum interference
    Buckley, Matthew R.
    Murayama, Hitoshi
    Klemm, William
    Rentala, Vikram
    [J]. PHYSICAL REVIEW D, 2008, 78 (01):
  • [19] Chatrchyan S, 2013, J HIGH ENERGY PHYS, DOI 10.1007/JHEP10(2013)167
  • [20] Helicity fractions of W bosons from top quark decays at next-to-next-to-leading order in QCD
    Czarnecki, Andrzej
    Koerner, Juergen G.
    Piclum, Jan H.
    [J]. PHYSICAL REVIEW D, 2010, 81 (11):
123