3,108 research outputs found

    Diffractive Bremsstrahlung at High-β\beta^\star LHC Case Study

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    Feasibility studies of the measurement of the exclusive diffractive bremsstrahlung cross-section in proton-proton scattering at the centre of mass energy of 13 TeV at the LHC are reported. Present studies were performed for the low luminosity LHC running with the betatron function value of 90~m using the ATLAS associated forward detectors ALFA and ZDC. A simplified approach to the event simulation and reconstruction is used. The background influence is also discussed.Comment: 20 pages, 10 figures. arXiv admin note: substantial text overlap with arXiv:1603.0644

    On the Possibility of Measuring the Single-tagged Exclusive Jets at the LHC

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    The feasibility studies of the measurement of the central exclusive jet production at the LHC using the proton tagging technique are presented. In order to reach the low jet-mass region, single tagged events were considered. The studies were performed at the c.m. energy of 14 TeV and the ATLAS detector, but are also applicable for the CMS-TOTEM experiments. Four data-taking scenarios were considered: AFP and ALFA detectors as forward proton taggers and β\beta^* = 0.55 m and β\beta^* = 90 m optics. After the event selection, the signal-to-background ratio ranges between 5 and 10410^4. Finally, the expected precision of the central exclusive dijet cross-section measurement for data collection period of 100 h is estimated