5,681 research outputs found

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

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    Results are presented from a search for new physics in the final state containing a photon and missing transverse energy. The data corresponds to an integrated luminosity of 5.0 fb1^{-1} collected in pp collisions at s\sqrt{s}= 7 TeV by the CMS experiment. The observed event yield agrees with standard model expectations. Using models for the production of dark matter particles(χ\chi), we set 9013.615.4fbon% confidence level (C.L.) upper limits of 13.6-15.4 fb on \chiproductioninthe production in the \gamma++ \metstate.Theseprovidethemostsensitiveupperlimitsforspindependent state. These provide the most sensitive upper limits for spin-dependent \chinucleonscatteringforhi¸massesbetween1and100GeV.Forspindependentcontributions,thepresentlimitsareextendedtoM(-nucleon scattering for \c{hi} masses between 1 and 100 GeV. For spin dependent contributions, the present limits are extended to M(\chi)) <$ 3.5 GeV. For ADD models with 3-6 large extra dimensions, our data exclude extra-dimensional Planck scales between 1.64 and 1.73 TeV at 95% C.L.Comment: Physics in Collision, Slovakia, 201

    Odontogenic Myxoma Of The Maxilla: A Clinical Case Report And Review Of Literature

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    Odontogenic myxomas are rare benign mesenchymal  tumours of head and neck with a potential for  local infiltration and recurrence. They appear to originate from the dental papilla, follicle or periodontal ligament in mandible and less commonly the maxilla.These usually present in second or third decade of life as slowly progressive space occupying lesion in the jaw giving a  mixed radiopaque-radiolucent appearance.The treatment is considered to be wide local excision in view of high recurrence with curettage alone. Here, we present a case of odontogenic myxoma of maxilla, in a 40 year old lady, with a brief review of  literature, clinical, radiological, histopathological characteristics and therapeutic modality employed.
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