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Creators/Authors contains: "Rodríguez, F. Lucas"

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  1. ; ; ; ; ; ; ; ; ; ; et al (, The European Physical Journal C)
    Abstract A generic search is presented for the associated production of a Z boson or a photon with an additional unspecified massive particle X,$${\textrm{pp}}\rightarrow {\textrm{pp}} +{{\textrm{Z}}}/\upgamma +{{\textrm{X}}} $$ pp → pp + Z / γ + X , in proton-tagged events from proton–proton collisions at$$\sqrt{s}=13\, \textrm{TeV}$$ s = 13 TeV , recorded in 2017 with the CMS detector and the CMS-TOTEM precision proton spectrometer. The missing mass spectrum is analysed in the 600–1600 GeV range and a fit is performed to search for possible deviations from the background expectation. No significant excess in data with respect to the background predictions has been observed. Model-independent upper limits on the visible production cross section of$${\textrm{pp}}\rightarrow {\textrm{pp}} +{{\textrm{Z}}}/\upgamma +{{\textrm{X}}} $$ pp → pp + Z / γ + X are set. 
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