Strange and non-strange (anti-)baryon production at 200 GeV per nucleon

Rapidity distributions of net hyperons (\Lambda - \overline{\Lambda}) are compared to distributions of participant protons (p - \overline{p}). Strangeness production (mean multiplicities of produced \Lambda/\Sigma^0 hyperons and \langle K + \overline{K} \rangle) in central nucleus-nucleus collisions is shown for different collision systems at different energies. An enhanced production of \overline{\Lambda} compared to \overline{p} is observed at 200 GeV per nucleon.Rapidity distributions of net hyperons ($\Lambda - \overline{\Lambda}$) are compared to distributions of participant protons ($p - \overline{p}$). Strangeness production (mean multiplicities of produced $\Lambda/\Sigma~0$ hyperons and $\langle K + \overline{K} \rangle$) in central nucleus-nucleus collisions is shown for different collision systems at different energies. An enhanced production of $\overline{\Lambda}$ compared to $\overline{p}$ is observed at 200 GeV per nucleon

Where Brain, Body and World Collide

The production cross section of electrons from semileptonic decays of beauty hadrons was measured at mid-rapidity (|y| < 0.8) in the transverse momentum range 1 < pt < 8 Gev/c with the ALICE experiment at the CERN LHC in pp collisions at a center of mass energy sqrt{s} = 7 TeV using an integrated luminosity of 2.2 nb^{-1}. Electrons from beauty hadron decays were selected based on the displacement of the decay vertex from the collision vertex. A perturbative QCD calculation agrees with the measurement within uncertainties. The data were extrapolated to the full phase space to determine the total cross section for the production of beauty quark-antiquark pairs

Effects of proton irradiation on 60 GHz CMOS transceiver chip for multi-Gbps communication in high-energy physics experiments

This article presents the experimental results of 17 MeV proton irradiation on a 60 GHz low power, half-duplex transceiver (TRX) chip implemented in 65 nm CMOS technology. It supports short range point-to-point data rate up to 6 Gbps by employing on-off keying (OOK). To investigate the irradiation hardness for high-energy physics (HEP) applications, two TRX chips were irradiated with total ionising doses (TID) of 74 and 42 kGy and fluence of 1.4 x 10(14)N(eq)/cm(2) and 0.8 x 10(14)N(eq)/cm(2) for RX and TX modes, respectively. The chips were characterised by pre- and post-irradiation analogue voltage measurements on different circuit blocks as well as through the analysis of wireless transmission parameters like bit error rate (BER), eye diagram, jitter etc. Post-irradiation measurements have shown certain reduction in performance but both TRX chips have been found operational through over the air measurements at 5 Gbps. Moreover, very small shift in the carrier frequency was observed after the irradiation

Exploiting Differentiable Programming for the End-to-end Optimization of Detectors

International audienceThe coming of age of differentiable programming makes possible today to create completecomputer models of experimental apparatus that include the stochastic data-generation processes, the full modeling of the reconstruction and inference procedures, and a suitably definedobjective function, along with the cost of any given detector configuration, geometry and materials. This enables the end-to-end optimization of the instruments, by using techniques developedwithin computer science that are currently vastly exploited in fields such as fluid dynamics.The MODE Collaboration has started to consider the problem in its generality, to providesoftware architectures that may be useful for the optimization of experimental design. Thesemodels may be useful in a ”human in the middle” system as they provide information on therelative merit of different configurations as a continuous function of the design choices. In thisshort contribution we summarize the plan of studies that has been laid out, and its potential inthe long term for the future of experimental studies in fundamental physics

Exploiting Differentiable Programming for the End-to-end Optimization of Detectors

International audienceThe coming of age of differentiable programming makes possible today to create completecomputer models of experimental apparatus that include the stochastic data-generation processes, the full modeling of the reconstruction and inference procedures, and a suitably definedobjective function, along with the cost of any given detector configuration, geometry and materials. This enables the end-to-end optimization of the instruments, by using techniques developedwithin computer science that are currently vastly exploited in fields such as fluid dynamics.The MODE Collaboration has started to consider the problem in its generality, to providesoftware architectures that may be useful for the optimization of experimental design. Thesemodels may be useful in a ”human in the middle” system as they provide information on therelative merit of different configurations as a continuous function of the design choices. In thisshort contribution we summarize the plan of studies that has been laid out, and its potential inthe long term for the future of experimental studies in fundamental physics