Direct measurement of the W boson width
| Authors |
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| Publication date | 2009 |
| Journal | Physical Review Letters |
| Volume | Issue number | 103 | 23 |
| Pages (from-to) | 231802 |
| Number of pages | 7 |
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| Abstract | We present a direct measurement of the width of the W boson using the shape of the transverse mass distribution of W -> e nu candidate events. Data from approximately 1 fb(-1) of integrated luminosity recorded at s=1.96 TeV by the D0 detector at the Fermilab Tevatron pp collider are analyzed. 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. |
| Document type | Article |
| Published at |
https://doi.org/10.1103/PhysRevLett.103.231802
(Final published version)
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