Outputs (816)

CKM theory status (2011)
Presentation / Conference Contribution

In this talk I review the current status of the CKM matrix. A special emphasis is also given to several discrepancies between experiments and the standard model at the level of about three standard deviations. Recent results that appeared after FPCP2... Read More about CKM theory status.

Standard Model Predictions for D0-oscillations and CP-violation (2011)
Presentation / Conference Contribution

Search for new physics in $B_s$ -mixing (2008)
Presentation / Conference Contribution

Charm mixing in the Standard Model (2010)
Presentation / Conference Contribution

In this talk we report on a study on the mixing of neutral charmed mesons and argue that, at the present stage, a CP violating weak phase of the order of some per mille can not be excluded in the Standard Model. It is shown how some, seemingly reason... Read More about Charm mixing in the Standard Model.

Theoretical update of $B$-Mixing and Lifetimes (2012)
Presentation / Conference Contribution

We review the current status of theoretical predictions for mixing quantities and lifetimes in the B-sector. In particular, due to the first non-zero measurement of the decay rate difference in the neutral Bs-system,

Partonic description of soft high energy pp interactions (2012)
Presentation / Conference Contribution

Threshold Pion Production at Large Momentum Transfers (2009)
Presentation / Conference Contribution

Summary of WG4: 'Lifetime, Mixing and Weak Mixing Phase in Charm and Beauty, Including Direct Determination of V_tx (2011)
Presentation / Conference Contribution

We present the summary of the Working Group on lifetimes, mixing and weak mixing phases in charm and beauty mesons at the CKM 2010 workshop. In the past year or so good progress was achieved on both experimental and theoretical sides. While this yiel... Read More about Summary of WG4: 'Lifetime, Mixing and Weak Mixing Phase in Charm and Beauty, Including Direct Determination of V_tx.

Constraints on fourth generation Majorana neutrinos (2010)
Presentation / Conference Contribution

We investigate the possibility of a fourth sequential generation in the lepton sector. Assuming neutrinos to be Majorana particles and starting from a recent - albeit weak - evidence for a non-zero admixture of a fourth generation neutrino from fits... Read More about Constraints on fourth generation Majorana neutrinos.

Exclusive Higgs Production in a Triplet Scenario. (2010)
Presentation / Conference Contribution

In this talk, we discuss searching for the neutral Higgs boson of a triplet model in central exclusive production at the Large Hadron Collider. In a detailed Monte Carlo analysis, it is found that for appropriate values of the model parameters, an ex... Read More about Exclusive Higgs Production in a Triplet Scenario..

What HERA may provide? (2008)
Presentation / Conference Contribution

The theoretical status of B¯ − B-mixing and lifetimes of heavy hadrons (2008)
Presentation / Conference Contribution

In this talk we review the theoretical status of the lifetime ratios of heavy hadrons and of the B-mixing quantities ΔMs, ΔΓs and φs. While ΔMs and ΔΓs suffer from large uncertainties due to the badly known decay constants, the ratio ΔΓs/ΔMs can be d... Read More about The theoretical status of B¯ − B-mixing and lifetimes of heavy hadrons.

Central Exclusive Production of BSM Higgs bosons at the LHC. (2008)
Presentation / Conference Contribution

The prospects for central exclusive diffractive (CED) production of MSSM Higgs bosons at the LHC are reviewed. These processes can provide important information on the CP-even Higgs bosons, allowing to probe interesting regions of the mA–tan β parame... Read More about Central Exclusive Production of BSM Higgs bosons at the LHC..

Exclusive production of the BSM Higgs bosons at the LHC (2011)
Presentation / Conference Contribution

We review the prospects for Central Exclusive Production (CEP) of BSM Higgs bosons at the LHC using forward proton detectors proposed to be installed at 220 m and 420 m from the ATLAS and/ or CMS. Results are presented for MSSM in standard benchmark... Read More about Exclusive production of the BSM Higgs bosons at the LHC.

Mixing and lifetimes of $b-$hadrons (2008)
Presentation / Conference Contribution

We review the status of mixing and lifetimes of b‐hadrons. We will show that ΔΓ/ΔM, asl and φ are better suited to search for new physics effects than ΔM alone, because of our poor knowledge of the decay constants. The theoretical precision in the de... Read More about Mixing and lifetimes of $b-$hadrons.

Numerical Updates of Lifetimes and Mixing Parameters of B Mesons (2011)
Presentation / Conference Contribution

We update the Standard-Model predictions for several quantities related to Bs−B¯s and Bd−B¯d mixing. The mass and width differences in the Bs system read ΔMSMs=(17.3±2.6)ps−1 and ΔΓSMs=(0.087±0.021)ps−1, respectively. The CP asymmetries in flavour-sp... Read More about Numerical Updates of Lifetimes and Mixing Parameters of B Mesons.

Rapidity gap survival probability and total cross sections. (2009)
Presentation / Conference Contribution

We discuss recent calculations of the survival probability of the large rapidity gaps in exclusive processes of the type pp → p + A + p at high energies. Absorptive or screening effects are important, and one consequence is that the total cross secti... Read More about Rapidity gap survival probability and total cross sections..

Short distance D-Dbar mixing (2012)
Presentation / Conference Contribution

We review the status of Standard Model predictions for lifetimes and mixing rates of charmed mesons. It is shown that the short distance approach is able to reproduce τ (D+)/τ (D0) at leading order in the 1/mc expansion. SU(3) violating effects from... Read More about Short distance D-Dbar mixing.

Working Group on Diffraction: Executive Summary. (2009)
Presentation / Conference Contribution

We give a brief overview of the topics covered in the working group on diffraction.

Exclusive Production of the MSSM Higgs Bosons at the LHC (2012)
Presentation / Conference Contribution

We review the prospects for Central Exclusive Production (CEP) of BSM Higgs bosons at the LHC using forward proton detectors proposed to be installed at 220 m and 420 m from the ATLAS and/ or CMS. Results are presented for MSSM in standard benchmark... Read More about Exclusive Production of the MSSM Higgs Bosons at the LHC.