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New physics results with the CMS Precision Proton Spectrometer
by K. Shchelina on behalf of CMS and Totem Collaborations
This is not the latest submitted version.
Submission summary
| Authors (as registered SciPost users): | Ksenia Shchelina |
| Submission information | |
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| Preprint Link: | scipost_202108_00007v1 (pdf) |
| Date submitted: | 2021-08-03 21:16 |
| Submitted by: | Shchelina, Ksenia |
| Submitted to: | SciPost Physics Proceedings |
| Proceedings issue: | 28th Annual Workshop on Deep-Inelastic Scattering (DIS) and Related Subjects (DIS2021) |
| Ontological classification | |
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| Academic field: | Physics |
| Specialties: |
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Abstract
The Precision Proton Spectrometer of the CMS experiment (PPS) collected more than 110 fb^{-1} of data over the course of the LHC Run 2. The present contribution gives an overview of some recent results based on these data. The observation of semi-exclusive dilepton production with the full Run 2 dataset and the search for exclusive two-photon production via photon exchange are presented, along with results on the PPS timing resolution.
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Report
The proceeding presents three different measurements made by the CMS-TOTEM Precision Proton Spectrometer (PPS); the search for central (semi)exclusive production of high-mass di-lepton pairs, the exclusive production of two-photons in light-by-light scattering at the large invariant mass regime, and a study on the resolution of the timing system in two-arm events.
The results indeed verify the PPS reconstruction and calibration performance with high precision by using more Run2 data. A strong correlation is observed between the time difference of the protons detected in PPS, and the longitudinal vertex position reconstructed in the central CMS tracker.
The proceeding is clear and well written and is certainly worth publishing.
There is a minor correction point regarding reference [3]: the link needs to be fixed.