Jonatan Adolfsson

SAMPA Chip: The New 32 Channels ASIC for the ALICE TPC and MCH Upgrades

This paper presents the test results of the second prototype of SAMPA, the ASIC designed for the upgrade of read-out front end electronics of the ALICE Time Projection Chamber (TPC) and Muon Chamber (MCH). SAMPA is made in a 130 nm CMOS technology with 1.25 V nominal voltage supply and provides 32 channels, with selectable input polarity, and three possible combinations of shaping time and sensitivity. Each channel consists of a Charge Sensitive Amplifier, a semi-Gaussian shaper and a 10-bit ADC; a Digital Signal Processor provides digital filtering and compression capability. In the second prototype run both full chip and single test blocks were fabricated, allowing block characterization and full system behaviour studies. Experimental results are here presented showing agreement with requirements for both the blocks and the full chip.

J/psi Elliptic Flow in Pb-Pb Collisions at root s(NN)=5.02 TeV

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System-size dependence of the charged-particle pseudorapidity density at √sNN=5.02 TeV with ALICE

meson measurements provide insight into strangeness production, which is one of the key observables for the hot medium formed in high-energy heavy-ion collisions. ALICE measured

Measurement of J/ψ production as a function of event multiplicity in pp collisions at s=13 TeV with ALICE

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Photoproduction of heavy vector mesons in ultra-peripheral Pb–Pb collisions

production through its decay in muon pairs in Pb-Pb collisions at

The new Inner Tracking System of the ALICE experiment

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Highlights of experimental results from ALICE

= 2.76 TeV in the intermediate transverse momentum range

D-meson nuclear modification factor and elliptic flow measurements in Pb–Pb collisions at √sNN=5.02TeV with ALICE at the LHC

2<p_{\rm T}<5

First measurement of Ξc0production in pp collisions at s=7 TeV

GeV/