TY - JOUR
T1 - Counting neutrinos with monojets
AU - Halzen, Francis
AU - Hikasa, Ken ichi
N1 - Funding Information:
This researcwh ass upporteidn part by the University of WisconsinR esearchC ommittewe ith funds grantedb y the WisconsinA luminR esearchF ounda-tion, and in part by the US Departmenotf Energy underc ontracDt E-AC02-76ER00881.
PY - 1986/2/27
Y1 - 1986/2/27
N2 - In proton-antiproton collisions, the Z to W cross-section ratio at large pT is appreciably different from the total Z to W ratio. We drive the relation (dσ/dpT)(W±) · BR(W→ev) ≅ (dσ/dpT)(Z) · BR(Z →vv) for sufficiently large pT, which is valid for three generations. As excess of "monojet" events would signal additional light neutrinos. This method is more sensitive to the variation of nv than the Z total width measurement or the method of total Z → e+e-/ W → ev ratio.
AB - In proton-antiproton collisions, the Z to W cross-section ratio at large pT is appreciably different from the total Z to W ratio. We drive the relation (dσ/dpT)(W±) · BR(W→ev) ≅ (dσ/dpT)(Z) · BR(Z →vv) for sufficiently large pT, which is valid for three generations. As excess of "monojet" events would signal additional light neutrinos. This method is more sensitive to the variation of nv than the Z total width measurement or the method of total Z → e+e-/ W → ev ratio.
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U2 - 10.1016/0370-2693(86)91475-9
DO - 10.1016/0370-2693(86)91475-9
M3 - Article
AN - SCOPUS:46149140383
SN - 0370-2693
VL - 168
SP - 135
EP - 140
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
IS - 1-2
ER -