M. Weber

Research summary

The Pierre Auger Collaboration reported anisotropies in cosmic-ray arrival directions above 55 EeV correlating with nearby active galaxies and an excess near the radio galaxy Cen A; the corresponding lack of anisotropies at illustrative lower energies E_th/Z for Z = 6, 13, 26 places stringent constraints on source-charge composition scenarios [1]. The LHC Higgs Cross Section Working Group reports compile state-of-the-art inclusive observables [2][4] and differential distributions [3] for Standard-Model and MSSM Higgs production, integrating subgroup contributions on Monte Carlo, PDFs and pseudo-observables. The upgraded EXO-200 detector improved energy resolution to sigma/E = 1.23%, raised the drift-region electric field by 50% and added radon suppression between the cryostat and lead shielding; combined with topological-discrimination analysis, the first-year data set a 90% CL median sensitivity for 136Xe neutrinoless double-beta decay [5]. Earlier EXO-200 data reported the first observation of two-neutrino double-beta decay in 136Xe with T_1/2 = (2.11 +/- 0.04(stat) +/- 0.21(syst)) x 10^21 years, providing matrix-element input for neutrinoless double-beta decay searches [6]. NA52 measured (10^6) antiprotons, (10^3) antideuterons and five anti-helium-3 candidates in 158A GeV/c Pb-Pb collisions at 0 deg, deriving anti-3He invariant differential cross sections of (2.5 +/- 1.8)e-7 at y = 3.4 and (5.9 +/- 3.4)e-8 at y = 4.0 in a coalescence-model framework [7]. The ArgoNeuT liquid-argon time projection chamber in Fermilab's NuMI low-energy beam recorded thousands of neutrino and antineutrino events; the paper describes cryogenics, TPC, readout and offline treatment plus drift velocity and electron lifetime characterised from through-going muons [8]. A requirements-engineering paper on automotive development analyses problems and solutions for managing component specifications across parallel prototyping phases [9].

Recent publications

1. The Pierre Auger Collaboration2013 · EPJ Web of Conferences · 429 citations
2. Handbook of LHC Higgs Cross Sections: 1. Inclusive Observables2011 · DESY Publication Database (PUBDB) (Deutsches Elektronen-Synchrotron) · 385 citations
3. Handbook of LHC Higgs Cross Sections: 2. Differential Distributions2012 · CERN Document Server (European Organization for Nuclear Research) · 317 citationsDOI
4. Handbook of LHC Higgs Cross Sections: 1. Inclusive Observables2011 · arXiv (Cornell University) · 313 citationsDOI
5. Search for Neutrinoless Double-Beta Decay with the Upgraded EXO-200 Detector2018 · Physical Review Letters · 215 citationsDOI
6. Observation of Two-Neutrino Double-Beta Decay inXe136with the EXO-200 Detector2011 · Physical Review Letters · 190 citationsDOI
7. Antihelium-3 production in lead-lead collisions at 158AGeV/c2003 · New Journal of Physics · 189 citationsDOI
8. The H1 lead/scintillating-fibre calorimeter1997 · Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment · 178 citationsDOI
9. The ArgoNeuT detector in the NuMI low-energy beam line at Fermilab2012 · Journal of Instrumentation · 160 citationsDOI
10. Requirements engineering in automotive development: experiences and challenges2003 · IEEE Software · 154 citationsDOI

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External profiles

• ORCID: https://orcid.org/0000-0002-2770-9031
• OpenAlex: openalex.org

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