Re-evaluation of the LHC potential for the measurement of mW |
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| Authors: | Nathalie Besson Maarten Boonekamp Esben Klinkby Sascha Mehlhase Troels Petersen |
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| Affiliation: | (1) CEA, IRFU, SPP, DSM Saclay, 91191 Gif sur Yvette, France;(2) Niels Bohr Institute, Blegdamsvej 17, 2100 Copenhagen, Denmark;(3) European Organization for Nuclear Research CERN, 1211 Geneva 23, Switzerland |
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| Abstract: | We present a study of the LHC sensitivity to the W boson mass based on simulation studies. We find that both experimental and phenomenological sources of systematic uncertainties can be strongly constrained with Z measurements: the lineshape, dσ Z /dm, is robustly predicted, and its analysis provides an accurate measurement of the detector resolution and absolute scale, while the differential cross-section analysis, d2 σ Z /dydp T , absorbs the strong interaction uncertainties. A sensitivity δ m W ∼7 MeV for each decay channel (W→e ν, W→μ ν), and for an integrated luminosity of 10 fb−1, appears as a reasonable goal. |
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