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flav-io / flavio

A Python package for flavour physics phenomenology in the Standard model and beyond
http://flav-io.github.io/
MIT License
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Update measurements.yml #102

Closed afalkows017 closed 4 years ago

afalkows017 commented 4 years ago

update of LEP-1 measurements due to luminosity update, see [arXiv:1912.02067]

coveralls commented 4 years ago

Coverage Status

Coverage remained the same at 93.853% when pulling b4660879d0fc49bf12b268dfe72652785c1be569 on afalkows017:new_sigmahad into 09517ce4ae7a3cc2ef91c5afbb5932ac359bee6d on flav-io:master.

peterstangl commented 4 years ago

@afalkows017 thanks a lot!

From a brief look at arXiv:1912.02067, I understand that this paper updates LEP measurements based on a more precise determination of the integrated luminosity. Apart from the updated values, there are also several other LEP measurements in measurements.yml: https://github.com/flav-io/flavio/blob/63e602cf38fce48745f8acd225efe4e7bbc55156/flavio/data/measurements.yml#L5837-L5889 So I wonder if it is fully consistent to update some of the measurements while keeping others unchanged. I assume that it is actually consistent since the update mostly concerns the total width of the Z and its hadronic cross section. The other observables are ratios that should be essentially unaffected. Do you agree?

afalkows017 commented 4 years ago

Hi Peter, most LEP-1 measurements are ratios so they are not affected by the luminosity change. The one that is affected is sigma_had because it's an absolute cross section measurement and not a ratio. There's also a tiny shift of the central value of Gamma_Z, i guess due to correlations. The remaining measurements are not affected. 1912.02067 give the full list of measurements and the new correlation matrix in Table B13 I updated everything that changed.

best Adam

On Mon, Dec 16, 2019 at 11:21 PM Peter Stangl notifications@github.com wrote:

@afalkows017 https://github.com/afalkows017 thanks a lot!

From a brief look at arXiv:1912.02067, I understand that this paper updates LEP measurements based on a more precise determination of the integrated luminosity. Apart from the updated values, there are also several other LEP measurements in measurements.yml: https://github.com/flav-io/flavio/blob/63e602cf38fce48745f8acd225efe4e7bbc55156/flavio/data/measurements.yml#L5837-L5889 So I wonder if it is fully consistent to update some of the measurements while keeping others unchanged. I assume that it is actually consistent since the update mostly concerns the total width of the Z and its hadronic cross section. The other observables are ratios that should be essentially unaffected. Do you agree?

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peterstangl commented 4 years ago

@afalkows017 great, thanks for the confirmation! I have updated the inspire id and will merge this PR.