Home > $\Delta M_{W}\leq 10 MeV/c^2$ at the LHC: a forlorn hope? |
Article | |
Report number | arXiv:1004.2597 ; CERN-PH-EP-2010-007 ; TPJU-1-2010 ; CERN-PH-EP-2010-007 ; TPJU-1-2010 |
Title | $\Delta M_{W}\leq 10 MeV/c^2$ at the LHC: a forlorn hope? |
Author(s) | Krasny, M.W. (Paris U., VI-VII) ; Dydak, F. (CERN) ; Fayette, F. (Paris U., VI-VII) ; Placzek, W. (Jagiellonian U.) ; Siodmok, A. (Paris U., VI-VII ; Jagiellonian U.) |
Publication | 2010 |
Imprint | 16 Apr 2010 |
Number of pages | 26 |
Note | Comments: 26 pages, 10 figures, to be submitted to European Physical Journal C 26 pages, 10 figures, to be submitted to European Physical Journal C |
In: | Eur. Phys. J. C 69 (2010) 379-397 |
DOI | 10.1140/epjc/s10052-010-1417-0 |
Subject category | Particle Physics - Experiment |
Accelerator/Facility, Experiment | CERN LHC |
Abstract | At the LHC, the measurement of the W mass with a precision of $ O(10) MeV/c^2$ is both mandatory and difficult. In the analysis strategies proposed so far, shortcuts have been made that are justified for proton-antiproton collisions at the Tevatron, but not for proton-proton collisions at the LHC. The root of the problem lies in the inadequate knowledge of parton density functions of the proton. It is argued that in order to reach a $10 MeV/c^2$ precision for the W mass, more precise parton density functions of the proton are needed, and an LHC-specific analysis strategy ought to be pursued. Proposals are made on both issues. |
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