Singlet extensions and W boson mass in light of the CDF II result

Precise measurement of the W-boson mass with the CDF II detector.

We have measured the W-boson mass M(W) using data corresponding to 2.2  fb(-1) of integrated luminosity collected in pp collisions at sqrt[s] = 1.96  TeV with the CDF II detector at the Fermilab Tevatron collider. Samples consisting of 470,126 W → eν candidates and 624,708 W → μν candidates yield the measurement M(W) = 80,387 ± 12(stat.) ± 15(syst.) = 80,387 ± 19  MeV/c2. This is the most preci...

First Run Ii Measurement of the W Boson Mass with Cdf

CDF Multi-Muon Events and Singlet Extensions of the MSSM

We discuss a generalization of the minimal supersymmetric extension of the Standard Model in the form of three additional singlet superfields, which would explain the essential features of the CDF multi-muon events presented recently: a large production cross section of ∼ 100 pb originates from the production of a CP-odd scalar A with a mass in the 70 – 80 GeV range and a large value of tanβ ∼ ...

Combination of CDF and D 0 Results for the Mass of the W Boson

We summarize and combine the results on the direct measurements of the mass of the W boson in data collected by the Tevatron experiments CDF and D0 at Fermilab. Results from CDF Run-0 (1988-1889) and Run-I (1992-1995) have been combined with D0 results from Run-I, the CDF 200 pb −1 published results from the first period of Run-II (2001-2004) and the recent 1 fb −1 result in the electron channe...

Combination of CDF and D0 results on the W boson mass and width

V. M. Abazov, B. Abbott, A. Abdesselam, M. Abolins, V. Abramov, B. S. Acharya, D. Acosta,* D. L. Adams, M. Adams, T. Affolder,* S. N. Ahmed, H. Akimoto,* A. Akopian,* M. G. Albrow,* G. D. Alexeev, A. Alton, G. A. Alves, P. Amaral,* D. Ambrose,* S. R. Amendolia,* D. Amidei,* K. Anikeev,* J. Antos,* G. Apollinari,* Y. Arnoud, T. Arisawa,* A. Artikov,* T. Asakawa,* C. Avila, W. Ashmanskas,* M. Ata...