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Languages : en
Pages : 0

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Author:
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Category :
Languages : en
Pages :

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Author:
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Category :
Languages : en
Pages : 49

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Author:
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Category :
Languages : en
Pages : 4

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A search for squarks and gluinos is performed in the topology of multijet events accompanied by large missing transverse energy in 2.1fb−1 of p{bar p} collision data collected using the D0 detector at the Fermilab Tevatron Collider at a center of mass energy of 1.96 TeV. About half of this dataset is specifically analyzed for events involving at least one tau lepton decaying hadronically in addition. No deviation from the Standard Model expectation is observed and the analyses are combined to set limits on the squark and gluino masses and on parameters of minimal supergravity.

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Languages : en
Pages : 5

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We report on D0 searches for scalar quarks ({tilde q}) and gluinos ({tilde g}), the superpartners of quark and gluons, in topologies involving jets and missing transverse energies. Data samples obtained with D0 detector from p{bar p} collisions at a center-of-mass energy of 1.96 TeV corresponding to an integrated luminosities of 1-4 fb−1 were analyzed. No evidence for the production of such particles were observed and lower limits on squarks and gluino masses were set.

Author: Xavier Portell
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Category :
Languages : en
Pages : 3

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This contribution reports on preliminary measurements on searches for squarks and gluinos at CDF and D0 detectors in p{bar p} collisions at {radical}s = 1.96 TeV. The analyses are performed using event topologies with multiple jets and large missing energy in the final state. The mSUGRA scenario and R-parity conservation is assumed. No excess with respect to the Standard Model predictions is observed and new limits on the gluino and squark masses are extracted.

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Languages : en
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A search for Supergravity squark and gluino decays into di-leptons is presented. A novel search strategy of optimizing kinematic thresholds at each point in the three dimensional space of m[sub 0] -m[sub 1/2] -tan [beta] is employed. The model space is randomly scanned using a parameterized fast Monte Carlo. No events are observed above Standard Model background in 107.6 pb[sup -1] of Tevatron data collected by the D0 detector between 1993-96. Exclusion contours are presented in the m[sub 0] -m[sub 1/2] plane. At the 95% confidence level, a lower limit is set on the mass of gluinos of 129 GeV/c[sup 2] and on the mass of squarks of 138 GeV/c[sup 2] for all tan [beta]

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Category :
Languages : en
Pages : 11

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We report on a search for squarks and gluinos in p{anti p} collisions at (square root) s= 1.8 TeV using the D0 detector at Fermilab. Data corresponding to 79.2 " 4.2 pb−1 were examined for events with large missing transverse energy, three or more jets, and the absence of isolated leptons. No events were observed significantly in excess of Standard Model background predictions, and we place limits on the Minimal Supergravity parameters M0 and M12.

Author:
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Category :
Languages : en
Pages : 8

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The results of a search for squarks and gluinos using data from ppbar collisions recorded at a center-of-mass energy of 1.96 TeV by the D0 detector at the Fermilab Tevatron Collider are reported. The topologies analyzed consist of acoplanar-jet and multijet events with large missing transverse energy. No evidence for the production of squarks or gluinos was found in a data sample of 310 pb-1. Lower limits of 325 and 241 GeV were derived at the 95% C.L. on the squark and gluino masses, respectively, within the framework of minimal supergravity with tan[beta]=3, A0=0, and mu

Author:
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Category :
Languages : en
Pages : 3

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Book Description
This contribution reports on preliminary measurements of searches for squarks and gluinos at CDF and D0 detectors in p{bar p} collisions at (square root)s = 1.96 TeV using 1 fb−1 of data. The analyses are optimized for event topologies with multiple jets and large missing transverse energy in the final state. No excess with respect to the Standard Model predictions is observed and new limits on the gluino and squark masses are extracted in a mSUGRA scenario with R-parity conservation.