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Search for supersymmetry with gauge-mediated breaking in diphoton events at D0

Abazov, V. M.; Abbott, B.; Abolins, M.; Acharya, B. S.; Adams, D. L.; Adams, M.; Adams, T.; Agelou, M.; Agram, J. L.; Ahmed, S. N.; Ahn, S. H.

Made available in DSpace on 2022-04-28T19:57:01Z (GMT). No. of bitstreams: 0 Previous issue date: 2005-02-04; We report the results of a search for supersymmetry (SUSY) with gauge-mediated breaking in the missing transverse energy distribution of inclusive diphoton events using 263 pb-1 of data collected by the DO experiment at the Fermilab Tevatron Collider in 2002-2004. No excess is observed above the backgro...

Date: 2022   |   Origin: Oasisbr

Observation and properties of the X(3872) decaying to J/ψπ+π- in pp̄ collisions...

Abazov, V. M.; Abbott, B.; Abolins, M.; Acharya, B. S.; Adams, D. L.; Adams, M.; Adams, T.; Agelou, M.; Agram, J. L.; Ahmed, S. N.; Ahn, S. H.

Made available in DSpace on 2022-04-29T00:12:35Z (GMT). No. of bitstreams: 0 Previous issue date: 2004-10-15; The discovery of a new particle, X(3872) by the Belle collaboration in the decay mode B±→ XK± (X→ J/ψπ+π - was discussed. It was found that the mass of the X(3872) was measured to be 3872.0 ± 0.6(stat) ± 0.5 (syst) MeV/C2. The X(3872) particle were observed in approximately 230 pb-1 of data with a signi...

Date: 2022   |   Origin: Oasisbr

Search for Doubly Charged Higgs Boson Pair Production in the Decay to μ+μ+μ-μin...

Abazov, V. M.; Abbott, B.; Abolins, M.; Acharya, B. S.; Adams, D. L.; Adams, M.; Adams, T.; Agelou, M.; Agram, J. L.; Ahmed, S. N.; Ahn, S. H.

Made available in DSpace on 2022-04-29T00:13:01Z (GMT). No. of bitstreams: 0 Previous issue date: 2004-10-01; The pair production of doubly charged Higgs bosons in the decay to μ+ μ+ μ- μ- in pp̄ Collisions was investigated. It was observed that the total signal efficiency for the event selection was (47.5±2.5)% and does not depend on the mass of the doubly charged Higgs boson in the studied mass range. Data an...

Date: 2022   |   Origin: Oasisbr

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