Artículos de revistas
Search for Large Extra Spatial Dimensions in the Dielectron and Diphoton Channels in p(p)over-bar Collisions at root s=1.96 TeV
Fecha
2009-02-06Registro en:
Physical Review Letters. College Pk: Amer Physical Soc, v. 102, n. 5, p. 7, 2009.
0031-9007
10.1103/PhysRevLett.102.051601
WOS:000263166400013
WOS000263166400013.pdf
Autor
Joint Inst Nucl Res
Univ Buenos Aires
Centro Brasileiro de Pesquisas Físicas (CBPF)
Univ Estado Rio de Janeiro
Universidade Federal do ABC (UFABC)
Universidade Estadual Paulista (Unesp)
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CINVESTAV
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Institute for Theoretical and Experimental Physics (ITEP)
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Institución
Resumen
We report on a search for large extra spatial dimensions in the dielectron and diphoton channels using a data sample of 1: 05 fb(-1) of p (p) over bar collisions at a center-of-mass energy of 1.96 TeV collected by the D0 detector at the Fermilab Tevatron Collider. The invariant mass spectrum of the data agrees well with the prediction of the standard model. We find the most restrictive 95% C. L. lower limits on the effective Planck scale between 2.1 and 1.3 TeV for 2 to 7 extra dimensions.