The Pentabox Master Integrals with the Simplified Differential Equations approach

We present the calculation of massless two-loop Master Integrals relevant to five-point amplitudes with one off-shell external leg and derive the complete set of planar Master Integrals with five on-mass-shell legs, that contribute to many $2\to 3$ amplitudes of interest at the LHC, as for instance three jet production, $\gamma, V, H +2$ jets etc., based on the Simplified Differential Equations approach.Comment: Revised version accepted for publication in JHEP. Ancillary files with results can be downloaded from https://www.dropbox.com/s/90iiqfcazrhwtso/results.tgz?dl=

Two-loop Master Integrals with the Simplified Differential Equations approach

We calculate the complete set of two-loop Master Integrals with two off mass-shell legs with massless internal propagators, that contribute to amplitudes of diboson $V_1V_2$ production at the LHC. This is done with the Simplified Differential Equations approach to Master Integrals, which was recently proposed by one of the authors.Comment: 4 figures, 6 ancillary files. Version as published in JHE

A Feasibility Study of Superconducting Dipole for the Early Separation Scheme of SLHC

In the framework of the LHC luminosity upgrade an early separation scheme is being studied for the final phase ($L\approx 10^{35} cm^{-2} s^{-1}$ with substantial changes in the IR). In this paper we compare a Nb$_{3}$Sn and a Nb-Ti cos($\theta$) design: the aim is to explore the benefits and the limits of a compact solution with respect to the detector's constraints and the energy deposition issues. We propose to put the dipole system (cryostat and magnet) at a location starting at 6.8 m from the IP. The preliminary cross section, the achievable integrated field, the energy deposition on the magnet are presented and discusse