https://doi.org/10.1140/epjc/s10052-008-0774-4
Special Article - Scientific Note
Re-evaluation of the LHC potential for the measurement of m W
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
* e-mail: maarten.boonekamp@cea.fr
Received:
28
May
2008
Revised:
22
September
2008
Accepted:
22
September
2008
Published online:
7
November
2008
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.
© Springer-Verlag , 2008
