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| Author | : Sanjeev Vinodpersad Baldew |
| Publisher | : |
| Total Pages | : 134 |
| Release | : 2004 |
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| Author | : Arno Straessner |
| Publisher | : |
| Total Pages | : 153 |
| Release | : 2000 |
| Genre | : LEP - Elektron-Positron-Streuung - W-Boson - Paarerzeugung - L3-Detektor |
| ISBN | : |
| Author | : Francesco Spanò |
| Publisher | : |
| Total Pages | : 628 |
| Release | : 2004 |
| Genre | : Collisions (Physics) |
| ISBN | : |
| Author | : Alan M. Button |
| Publisher | : |
| Total Pages | : 230 |
| Release | : 1999 |
| Genre | : |
| ISBN | : |
| Author | : Lennart Adam |
| Publisher | : |
| Total Pages | : |
| Release | : 2021 |
| Genre | : Force and energy |
| ISBN | : |
| Author | : Lennart Adam |
| Publisher | : |
| Total Pages | : 0 |
| Release | : 2021 |
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| Author | : |
| Publisher | : |
| Total Pages | : 7 |
| Release | : 2009 |
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| ISBN | : |
We present a direct measurement of the width of the W boson using the shape of the transverse mass distribution of W → e[nu] candidates selected in 1 fb−1 of data collected with the D0 detector at the Fermilab Tevatron collider in p{bar p} collisions at √s = 1.96 TeV. We use the same methods and data sample that were used for our recently published W boson mass measurement, except for the modeling of the recoil, which is done with a new method based on a recoil library. Our result, 2.028 ± 0.072 GeV, is in agreement with the predictions of the standard model and is the most precise direct measurement result from a single experiment to date.
| Author | : Barbara Maartje Raeven |
| Publisher | : |
| Total Pages | : 187 |
| Release | : 2000 |
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| ISBN | : |
| Author | : |
| Publisher | : |
| Total Pages | : 184 |
| Release | : 2009 |
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| ISBN | : |
This dissertation presents a direct measurement of the W boson mass (M{sub W}) and decay width ([Lambda]{sub W}) in 1 fb−1 of W → e[nu] collider data at D0 using a novel method to model the hadronic recoil. The mass is extracted from fits to the transverse mass M{sub T}, p{sub T}(e), and E{sub T} distributions. The width is extracted from fits to the tail of the M{sub T} distribution. The electron energy measurement is simulated using a parameterized model, and the recoil is modeled using a new technique by which Z recoils are chosen from a data library to match the p{sub T} and direction of each generated W boson. We measure the the W boson mass to be M{sub W} = 80.4035 ± 0.024(stat) ± 0.039(syst) from the M{sub T}, M{sub W} = 80.4165 ± 0.027(stat) ± 0.038(syst) from the pT(e), and MW = 80.4025 ± 0.023(stat) ± 0.043(syst) from the E{sub T} distributions. [Lambda]{sub W} is measured to be [Lambda]{sub W} = 2.025 ± 0.038(stat) ± 0.061(syst) GeV.
| Author | : Ian Malcolm Adam |
| Publisher | : |
| Total Pages | : 656 |
| Release | : 1997 |
| Genre | : |
| ISBN | : |
