Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 101
Book Description
Although the standard model of particle physics has been very successfull in describing nature it needs to be extended by the Higgs mechanism to explain the particle masses observed in experiments. This mechanism introduces a new elementary particle called the Higgs boson. Current research at particle accelerators focuses on the search for the Higgs boson as a major goal. This analysis uses the data recorded with the D0-detector of the Tevatron at the Fermi National Accelerator Laboratory (FNAL). The Tevatron collides protons and antiprotons at a center of mass energy of √s=1.96 TeV. The primary goal of the analysis was the search for a light Higgs boson in the WH channel. For this the process pp→ WH → ev bb was used. Furthermore a measurement of the Wbb production cross section has been performed. For the measurements a total intagrated luminosity of L=255pb-1 was available. For the selection of the desired processes events with electrons, missing transverse momentum and at least two jets have been used. At least two of the jets were required to be identified as b-jets. To obtain an efficient event selection many event properties had to be calculated and methods to cut on them needed to be optimized. Based on the selected events the Wbb production cross section has been calculated. After includinng the branching ratio BR(W→ev)=0.108 the result is ?(Wbb)=21.8 pb (+15.5; -20.0 pb(sys+stat)) for events where the b-quarks satisfy p_T>8 GeV und.
Search for a Light Higgs Boson in the Channel WH{u2192} E?e B$\bar{b}$ in P$\bar{p}$-collision with $\sqrt{s}$
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 101
Book Description
Although the standard model of particle physics has been very successfull in describing nature it needs to be extended by the Higgs mechanism to explain the particle masses observed in experiments. This mechanism introduces a new elementary particle called the Higgs boson. Current research at particle accelerators focuses on the search for the Higgs boson as a major goal. This analysis uses the data recorded with the D0-detector of the Tevatron at the Fermi National Accelerator Laboratory (FNAL). The Tevatron collides protons and antiprotons at a center of mass energy of √s=1.96 TeV. The primary goal of the analysis was the search for a light Higgs boson in the WH channel. For this the process pp→ WH → ev bb was used. Furthermore a measurement of the Wbb production cross section has been performed. For the measurements a total intagrated luminosity of L=255pb-1 was available. For the selection of the desired processes events with electrons, missing transverse momentum and at least two jets have been used. At least two of the jets were required to be identified as b-jets. To obtain an efficient event selection many event properties had to be calculated and methods to cut on them needed to be optimized. Based on the selected events the Wbb production cross section has been calculated. After includinng the branching ratio BR(W→ev)=0.108 the result is ?(Wbb)=21.8 pb (+15.5; -20.0 pb(sys+stat)) for events where the b-quarks satisfy p_T>8 GeV und.
Publisher:
ISBN:
Category :
Languages : en
Pages : 101
Book Description
Although the standard model of particle physics has been very successfull in describing nature it needs to be extended by the Higgs mechanism to explain the particle masses observed in experiments. This mechanism introduces a new elementary particle called the Higgs boson. Current research at particle accelerators focuses on the search for the Higgs boson as a major goal. This analysis uses the data recorded with the D0-detector of the Tevatron at the Fermi National Accelerator Laboratory (FNAL). The Tevatron collides protons and antiprotons at a center of mass energy of √s=1.96 TeV. The primary goal of the analysis was the search for a light Higgs boson in the WH channel. For this the process pp→ WH → ev bb was used. Furthermore a measurement of the Wbb production cross section has been performed. For the measurements a total intagrated luminosity of L=255pb-1 was available. For the selection of the desired processes events with electrons, missing transverse momentum and at least two jets have been used. At least two of the jets were required to be identified as b-jets. To obtain an efficient event selection many event properties had to be calculated and methods to cut on them needed to be optimized. Based on the selected events the Wbb production cross section has been calculated. After includinng the branching ratio BR(W→ev)=0.108 the result is ?(Wbb)=21.8 pb (+15.5; -20.0 pb(sys+stat)) for events where the b-quarks satisfy p_T>8 GeV und.
Search for a Light Charged Higgs Boson in the H$^\pm$ $\to $ Cs Channel in Proton-proton Collisions at $\sqrts}
Search for a Light Higgs Boson in the Channel WH-] E Nu_e B Anti-b
Author: David Meder-Marouelli
Publisher:
ISBN:
Category :
Languages : en
Pages : 101
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 101
Book Description
The Search for a Light Higgs Boson in the TtH0(H0u8594?- Gg) -- Channel and Measurement of Its CP-Parity with the ATLAS Experiment at the Large Hadron Collider
Search for a Light Charged Higgs Boson Decaying to $ \mathrm{ C \bar{s} } $ in Pp Collisions at $ \sqrt{s}
The Search for a Light Higgs Boson in the TtHo (Ho588) Channel and the Measurement of Its CP-parity with the ATLAS Experiment at the Large Hadron Collider
Search for Non-SM Light Higgs Boson in the H [arrow] Γγ Channel
Author: Alexander Stepanovych Melnitchouk
Publisher:
ISBN:
Category : Higgs bosons
Languages : en
Pages : 358
Book Description
Publisher:
ISBN:
Category : Higgs bosons
Languages : en
Pages : 358
Book Description
Search for a Charged Higgs Boson in Pp Collisions at Sqrt(s)
Search for a Light Charged Higgs Boson in the Decay Channel H + --> C ̄s Using the ATLAS Detector
Search for Non-SM Light Higgs Boson in the H $\to \gamma \gamma$ Channel
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 179
Book Description
We present first results on the search for Higgs Boson with an enhanced branching fraction into photons in the h → [gamma][gamma] decay channel using recent Run II data collected by the D0 detector at the Fermilab Tevatron proton-antiproton collider. We discuss event selection, backgrounds, analysis optimization, and the limits on the Higgs boson mass obtained in this analysis.
Publisher:
ISBN:
Category :
Languages : en
Pages : 179
Book Description
We present first results on the search for Higgs Boson with an enhanced branching fraction into photons in the h → [gamma][gamma] decay channel using recent Run II data collected by the D0 detector at the Fermilab Tevatron proton-antiproton collider. We discuss event selection, backgrounds, analysis optimization, and the limits on the Higgs boson mass obtained in this analysis.