Search for Dark Matter and Large Extra Dimensions in pp Collisions Yielding a Photon and Missing Transverse Energy

By Cms Collaboration. 2012

159 citations recorded by the source corpus.

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.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/a36e7fdea1c42d32324505e4c039a20618be5907

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In Astronomy and Astrophysics

1. M. Raidal
2. A. Gritsan
3. L. Winstrom
4. Alexander Belyaev
5. R. Ulrich
6. Matthew Fisher
7. S. Gninenko
8. C. Tully

In Nuclear and High Energy Physics

1. Cms Collaboration
2. Atlas Collaboration
3. M. Raidal
4. É. Conte
5. S. Visscher
6. S. Malvezzi
7. Jean-Roch Vlimant
8. G. Davies

Citations in the corpus

• Search for dark matter and large extra dimensions in monojet events in pp collisions at sqrt(s) = 7 TeV (2012, methodology): “Also shown are the results from the CMS Collaboration using the monophoton plus Emiss T channel [14], pp collider experiment CDF [15], direct detection experiments, COUPP [18], CoGeNT [17], Picasso [21], XENON100 [16], CDMS II [19, 20], and SIMPLE [22], and indirect detection experiments, IceCube [2”