Search for high mass resonances decaying to Muon pairs in √s=1.96TeV pp̄ collisions

Search for high mass resonances decaying to Muon pairs in √s=1.96TeV pp̄ collisions

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We present a search for a new narrow, spin-1, high mass resonance decaying to μ+μ-+X, using a matrix-element-based likelihood and a simultaneous measurement of the resonance mass and production rate. In data with 4.6fb-1 of integrated luminosity collected by the CDF detector in pp̄ collisions at √s=...

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Những tác giả chính: Aaltonen, T, Álvarez González, B, Amerio, S, Amidei, D, Anastassov, A, Annovi, A, Antos, J, Apollinari, G, Appel, J, Apresyan, A, Arisawa, T, Artikov, A, Asaadi, J, Ashmanskas, W, Auerbach, B, Aurisano, A, Azfar, F, Badgett, W, Barbaro-Galtieri, A, Barnes, V, Barnett, B, Barria, P, Bartos, P, Bauce, M, Bauer, G
Định dạng: Journal article
Ngôn ngữ:English
Được phát hành: 2011
Miêu tả
Tóm tắt:We present a search for a new narrow, spin-1, high mass resonance decaying to μ+μ-+X, using a matrix-element-based likelihood and a simultaneous measurement of the resonance mass and production rate. In data with 4.6fb-1 of integrated luminosity collected by the CDF detector in pp̄ collisions at √s=1960GeV, the most likely signal cross section is consistent with zero at 16% confidence level. We therefore do not observe evidence for a high mass resonance and place limits on models predicting spin-1 resonances, including M>1071GeV/c2 at 95% confidence level for a Z′ boson with the same couplings to fermions as the Z boson. © 2011 American Physical Society.

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