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We present an X-ray point-source catalog from the XMM-Large Scale Structuresurvey region (XMM-LSS), one of the XMM-Spitzer Extragalactic RepresentativeVolume Survey (XMM-SERVS) fields. We target the XMM-LSS region with $1.3$ Ms ofnew XMM-Newton AO-15 observations, transforming the archival X-ray coverage inthis region into a 5.3 deg$^2$ contiguous field with uniform X-ray coveragetotaling $2.7$ Ms of flare-filtered exposure, with a $46$ ks median PN exposuretime. We provide an X-ray catalog of 5242 sources detected in the soft (0.5-2keV), hard (2-10 keV), and/or full (0.5-10 keV) bands with a 1% expectedspurious fraction determined from simulations. A total of 2381 new X-raysources are detected compared to previous source catalogs in the same area. Oursurvey has flux limits of $1.7\times10^{-15}$, $1.3\times10^{-14}$, and$6.5\times10^{-15}$ erg cm$^{-2}$ s$^{-1}$ over 90% of its area in the soft,hard, and full bands, respectively, which is comparable to those of theXMM-COSMOS survey. We identify multiwavelength counterpart candidates for 99.9%of the X-ray sources, of which 93% are considered as reliable based on theirmatching likelihood ratios. The reliabilities of these high-likelihood-ratiocounterparts are further confirmed to be $\approx 97$% reliable based on deepChandra coverage over $\approx 5$% of the XMM-LSS region. Results ofmultiwavelength identifications are also included in the source catalog, alongwith basic optical-to-infrared photometry and spectroscopic redshifts frompublicly available surveys. We compute photometric redshifts for X-ray sourcesin 4.5 deg$^2$ of our field where forced-aperture multi-band photometry isavailable; $>70$% of the X-ray sources in this subfield have eitherspectroscopic or high-quality photometric redshifts.

The XMM-SERVS survey: new XMM-Newton point-source catalog for the XMM-LSS field