scholarly journals Measurement of the w boson mass at the Collider Detector at Fermilab from a fit to the transverse momentum spectrum of the muon

2007 ◽  
Author(s):  
Ian Eberhard Vollrath
Keyword(s):  
Transverse Momentum ◽  
W Boson ◽  
Momentum Spectrum ◽  
Boson Mass ◽  
Transverse Momentum Spectrum

scholarly journals Comparison of ​horace and ​photos Algorithms for Multiphoton Emission in the Context ofWBoson Mass Measurement

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Ashutosh V. Kotwal ◽  
Bodhitha Jayatilaka
Keyword(s):  
Transverse Momentum ◽  
Virtual Photon ◽  
Mass Measurement ◽  
Photon Emission ◽  
Momentum Spectrum ◽  
Boson Mass ◽  
Real Photon ◽  
Transverse Momentum Spectrum ◽  
Final State ◽  
Measured Mass

Wboson mass measurement is sensitive to QED radiative corrections due to virtual photon loops and real photon emission. The largest shift in the measured mass, which depends on the transverse momentum spectrum of the charged lepton from the boson decay, is caused by the emission of real photons from the final-state lepton. There are a number of calculations and codes available to model the final-state photon emission. We perform a detailed study, comparing the results fromhoraceandphotosimplementations of the final-state multiphoton emission in the context of a direct measurement ofWboson mass at Tevatron. Mass fits are performed using a simulation of the CDF II detector.

scholarly journals Determination of the transverse momentum of W bosons in hadronic collisions via forward folding techniques

2016 ◽  
Vol 31 (14) ◽  
pp. 1650069
Author(s):  
Jakub Cuth ◽  
Kyrylo Merkotan ◽  
Matthias Schott ◽  
Samuel Webb
Keyword(s):  
Transverse Momentum ◽  
Z Boson ◽  
W Boson ◽  
W Bosons ◽  
Boson Mass ◽  
Final States ◽  
Transverse Momentum Spectrum ◽  
Systematic Uncertainties ◽  
Hadronic Collisions

The measurement of the transverse momentum of W bosons in hadron collisions provides not only an important test of quantum chromodynamic (QCD) calculations, but also is a crucial input for the precision measurement of the W boson mass. While the measurement of the Z boson transverse momentum is experimentally well under control, the available unfolding techniques for the W boson final states lead generically to relatively large uncertainties. In this paper, we present a new methodology to estimate the W boson transverse momentum spectrum, significantly improving the systematic uncertainties of current approaches.

scholarly journals Effect of in-medium mass-shift on transverse-momentum spectrum and elliptic anisotropy of ϕ meson

2020 ◽  
Vol 29 (07) ◽  
pp. 2050047
Author(s):  
Yong Zhang ◽  
Jing Yang ◽  
Weihua Wu
Keyword(s):  
Transverse Momentum ◽  
Collision Energy ◽  
Elliptic Flow ◽  
Momentum Spectrum ◽  
Mass Shift ◽  
Large Momentum ◽  
Transverse Momentum Spectrum ◽  
Medium Mass ◽  
Different Sources ◽  
Momentum Region

We study the effect of in-medium mass-shift on transverse-momentum spectrum and elliptic anisotropy of [Formula: see text] meson. It is found that the mass-shift enhances the [Formula: see text] yields and suppresses the elliptic flow [Formula: see text] in large momentum region, and the effects increase with the increasing mass-shift. The effects are various for different sources and decrease with the increasing collision energy. We further study the effects for parts of all [Formula: see text] meson with mass-shift, and the effects decrease with the decreasing probability of [Formula: see text] meson with mass-shift. A possible method to detect the mass-shift of [Formula: see text] meson via transverse-momentum spectrum and [Formula: see text] is proposed.

scholarly journals Nonperturbative Uncertainties on the Transverse Momentum Distribution of Electroweak Bosons and on the Determination of the W Boson Mass at the LHC

2019 ◽  
Vol 2019 ◽  
pp. 1-11 ◽  
Author(s):  
Giuseppe Bozzi ◽  
Andrea Signori
Keyword(s):  
Transverse Momentum ◽  
W Boson ◽  
Direct Determination ◽  
Boson Mass ◽  
Proton Proton ◽  
Theoretical Predictions ◽  
Quark Transverse Momentum ◽  
The Impact ◽  
Proton Proton Collisions

In this contribution we present an overview of recent results concerning the impact of a possible flavour dependence of the intrinsic quark transverse momentum on electroweak observables. In particular, we focus on the qT spectrum of electroweak gauge bosons produced in proton-proton collisions at the LHC and on the direct determination of the W boson mass. We show that these effects are comparable in size to other nonperturbative effects commonly included in phenomenological analyses and should thus be included in precise theoretical predictions for present and future hadron colliders.

scholarly journals The Zγ transverse-momentum spectrum at NNLO+N3LL

2020 ◽  
Vol 809 ◽  
pp. 135718 ◽  
Author(s):  
Marius Wiesemann ◽  
Luca Rottoli ◽  
Paolo Torrielli
Keyword(s):  
Transverse Momentum ◽  
Momentum Spectrum ◽  
Transverse Momentum Spectrum
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