Search for the Standard Model Higgs Boson at the ALEPH Detector

2002 ◽  
Author(s):  
R. R. White
Keyword(s):  
Higgs Boson ◽  
Standard Model ◽  
Standard Model Higgs Boson ◽  
Aleph Detector ◽  
The Standard Model

SEARCH FOR THE STANDARD MODEL HIGGS BOSON WITH THE ALEPH DETERCTOR AT LEP2

2001 ◽  
Vol 16 (supp01a) ◽  
pp. 302-304
Author(s):  
JASON NIELSEN
Keyword(s):  
Higgs Boson ◽  
Standard Model ◽  
Center Of Mass ◽  
Higgs Bosons ◽  
Higgs Production ◽  
Standard Model Higgs Boson ◽  
Center Of Mass Energy ◽  
Aleph Detector ◽  
The Standard Model ◽  
Firm Evidence

As the LEP collider at CERN has increased its maximum center-of-mass energy to 209 GeV, a total integrated luminosity of 99.8 pb -1 has been collected in the ALEPH detector. The ALEPH searches for Higgs bosons have been updated, But no firm evidence for Higgs production has been observed. Standard Model Higgs boson production is excluded at 95% confidence level for Higgs masses less than 111.1 GeV/c 2, and the combined LEP results exclude Higgs masses below 113.3 GeV/c 2. The recently-granted LEP extension will allow the a currently 2σ fluctuation from background expectation at m H = 115 GeV/c 2 to become more significant if it is truly due to Higgs production.

scholarly journals Search for π0 decays to invisible particles

2021 ◽  
Vol 2021 (2) ◽  
Author(s):  
E. Cortina Gil ◽  
◽  
A. Kleimenova ◽  
E. Minucci ◽  
S. Padolski ◽  
...  
Keyword(s):  
Higgs Boson ◽  
Standard Model ◽  
Confidence Level ◽  
Branching Ratio ◽  
Standard Model Higgs Boson ◽  
Scalar Mixing ◽  
Upper Limit ◽  
Upper Limits ◽  
The Standard Model ◽  
Model Independent

Abstract The NA62 experiment at the CERN SPS reports a study of a sample of 4 × 109 tagged π0 mesons from K+ → π+π0(γ), searching for the decay of the π0 to invisible particles. No signal is observed in excess of the expected background fluctuations. An upper limit of 4.4 × 10−9 is set on the branching ratio at 90% confidence level, improving on previous results by a factor of 60. This result can also be interpreted as a model- independent upper limit on the branching ratio for the decay K+ → π+X, where X is a particle escaping detection with mass in the range 0.110–0.155 GeV/c2 and rest lifetime greater than 100 ps. Model-dependent upper limits are obtained assuming X to be an axion-like particle with dominant fermion couplings or a dark scalar mixing with the Standard Model Higgs boson.

scholarly journals A search for the dimuon decay of the Standard Model Higgs boson with the ATLAS detector

2021 ◽  
Vol 812 ◽  
pp. 135980
Author(s):  
G. Aad ◽  
B. Abbott ◽  
D.C. Abbott ◽  
A. Abed Abud ◽  
K. Abeling ◽  
...  
Keyword(s):  
Higgs Boson ◽  
Standard Model ◽  
Atlas Detector ◽  
Standard Model Higgs Boson ◽  
The Standard Model

scholarly journals Search for the Standard Model Higgs boson in e+e− collisions at up to 202 GeV

2001 ◽  
Vol 508 (3-4) ◽  
pp. 225-236 ◽  
Author(s):  
M. Acciarri ◽  
P. Achard ◽  
O. Adriani ◽  
M. Aguilar-Benitez ◽  
J. Alcaraz ◽  
...  
Keyword(s):  
Higgs Boson ◽  
Standard Model ◽  
Standard Model Higgs Boson ◽  
The Standard Model

scholarly journals Production and decay of the Standard Model Higgs boson at LEP200

1994 ◽  
Vol 63 (3) ◽  
pp. 417-425 ◽  
Author(s):  
Eilam Gross ◽  
Bernd A. Kniehl ◽  
Gustavo Wolf
Keyword(s):  
Higgs Boson ◽  
Standard Model ◽  
Standard Model Higgs Boson ◽  
The Standard Model

scholarly journals Impersonating the Standard Model Higgs boson: alignment without decoupling

2014 ◽  
Vol 2014 (4) ◽  
Author(s):  
Marcela Carena ◽  
Ian Low ◽  
Nausheen R. Shah ◽  
Carlos E. M. Wagner
Keyword(s):  
Higgs Boson ◽  
Standard Model ◽  
Standard Model Higgs Boson ◽  
The Standard Model

scholarly journals Search for the standard model Higgs boson in e+e− interactions at

1997 ◽  
Vol 411 (3-4) ◽  
pp. 373-386 ◽  
Author(s):  
M Acciarri ◽  
O Adriani ◽  
M Aguilar-Benitez ◽  
S Ahlen ◽  
J Alcaraz ◽  
...  
Keyword(s):  
Higgs Boson ◽  
Standard Model ◽  
Standard Model Higgs Boson ◽  
The Standard Model
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