{ "id": "1204.0821", "version": "v2", "published": "2012-04-03T22:12:03.000Z", "updated": "2013-01-23T09:59:25.000Z", "title": "Search for Dark Matter and Large Extra Dimensions in pp Collisions Yielding a Photon and Missing Transverse Energy", "authors": [ "CMS Collaboration" ], "comment": "Submitted to Phys. Rev. Lett", "journal": "Phys. Rev. Lett. 108 (2012) 261803", "doi": "10.1103/PhysRevLett.108.261803", "categories": [ "hep-ex" ], "abstract": "Results are presented from a search for new physics in the final state containing a photon and missing transverse energy. The data correspond to an integrated luminosity of 5.0 inverse femtobarns collected in pp collisions at sqrt(s) = 7 TeV by the CMS experiment. The observed event yield agrees with standard-model expectations for the photon-plus-missing-transverse-energy events. Using models for production of dark-matter particles (chi), we set 90% confidence level (C.L.) upper limits of 13.6--15.4 femtobarns on chi production in the photon-plus-missing-transverse-energy state. These provide the most sensitive upper limits for spin-dependent chi-nucleon scattering for chi masses between 1 and 100 GeV. For spin-independent contributions, the present limits are extended to chi masses below 3.5 GeV. For models with 3--6 large extra dimensions, our data exclude extra-dimensional Planck scales between 1.65 and 1.71 TeV at 95% C.L.", "revisions": [ { "version": "v2", "updated": "2013-01-23T09:59:25.000Z" } ], "analyses": { "subjects": [ "13.85.Rm", "14.80.Nb", "14.70.Kv", "11.25.Wx" ], "keywords": [ "large extra dimensions", "missing transverse energy", "pp collisions yielding", "dark matter", "data exclude extra-dimensional planck scales" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Physical Review Letters", "year": 2012, "month": "Jun", "volume": 108, "number": 26, "pages": 261803 }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "inspire": 1103032, "adsabs": "2012PhRvL.108z1803C" } } }