Marcus Beck

Name Dr. Marcus Beck

Phone +49-6131-39-25974

Fax +49-6131-39-23428
Room 02-625

Address Staudingerweg 7

D 55128 Mainz



My area of expertise and interest is experimental nuclear physics and particle-astrophysics at low energies. I investigate the fundamental interactions and their symmetries using precision measurements of neutron and nuclear β-decay with the goal to search for physics beyond the standard electroweak model1 .

At present I am involved in the aSPECT, tSPECT and KATRIN experiments: 

  • aSPECT – measurement of the coupling constants gV and gA of the V-A model, investigation of the unitarity of the CKM matrix, search for exotic interactions, investigation of the symmetries of the weak interaction (e.g. parity violation); all by the determination of the beta-neutrino angular correlation in the decay of the free neutron. aSPECT has had a successfull beam time at the Institut Laue Langevin in 2013. The data analysis is ongoing. We expect an uncertainty on the beta-neutrino angular correlation at the level of da/a of 1-2%.
  • tSPECT – measurement of the neutron lifetime using fully magnetic storage at the UCN-source of the TRIGA reactor in Mainz.

    Work area: the full experiment including experimental set-up, data taking and data analysis.
  • KATRIN – search for the mass of the electron-antineutrino.

    Work area: calibration and monitoring, calibration sources, rear wall, work function measurements.

Since all three experiments, aSPECT, tSPECT and KATRIN use electrostatic filters with magnetic collimation (MAC-E filters) many experimental problems are similar and developments or improvements at one of these experiments may be applied at one of the others. This offers great synergetic effects.

Teaching (Uni Mainz)

2015/16 Lecture Course “

together with Prof. D. Budker

2015      Tutorium „Experimentalphysik 2"

Supervision of student seminar talks

2014/15 Lecture Course „Einführung in die Neutronenphysik“

Tutorium „Experimentalphysik 1“

Supervision of student seminar talks

2014      Supervision of the seminar for Bachelor students

2013      Supervision of student seminar talks

2012/13 Supervision of student seminar talks

Präzisionsexperimente bei niedrigen “

Supervision of student seminar talks

2011/12 Several lectures of the course of Prof. Heil

2011      Supervision of student seminar talks

Organization and supervision of the exercises for the lecture

together with Dr. S. Karpuk 

Curriculum Vitae

Date of birth: 24th May 1966 in Schwäbisch Hall, Germany

Nationality: German

Marital status: singleDialysis patient since 1990

1991 – 1994 Fellowship of the Institut für Begabtenförderung der Konrad-Adenauer Stiftung


1976 - 1985 Hohenlohe Gymnasium, Öhringen

1985 Abitur (A-Level)

1985 - 1991 Ruprecht-Karls-Universität Heidelberg

1987 Vordiplom (Bachelor)

1991 Diplom (Master in physics)

In conjunction with

Max-Planck-Institut für Kernphysik, Heidelberg

1989 – 1991 Diploma thesis

1991 - 1994 Max-Planck-Institut für Kernphysik, Heidelberg

1994 PhD (magna cum laude)

Work Experience:

1994 Post-doctoral position at the

Max-Planck-Institut für Kernphysik, Heidelberg

1995 - 1998 Post-doctoral position at the

University of Washington, Nuclear Physics Laboratory, Seattle(USA)

1998 – 2004 Scientist position at the

Katholieke Universiteit Leuven, Instituut voor Kern- en Stralingsfysica, Leuven (Belgium)

2005 - 2010 Scientist position at the

Westfälische Wilhelms-Universität Münster, Münster (Germany)

Since 2010 Scientist position at the

Johannes Gutenberg-Universität Mainz, Mainz (Germany)

And since 2013 also

Helmholtz-Institut Mainz, Mainz (Germany)



N. Severijns, M. Beck and O. Naviliat-Cuncic, Tests of the standard electroweak model in beta decay, Review of Modern Physics 78 (2006) 991

Recent articles

T. Porobic, M. Beck, M. Breitenfeldt, C. Couratin, P. Finlay, A. Knecht, X. Fabian, P. Friedag, X. Fléchard, G. Ban, D. Zákoucký, G. Soti, S. Van Gorp, Ch. Weinheimer, E. Wursten, N. Severijns, Space-charge effect in the WITCH Penning ion traps, Nucl. Instr. Meth. A 785 (2015) 153

M. Beck, K. Bokeloh, S. Bauer, H. Baumeister, J. Bonn, H. Hein, B. Ostrick, S. Rosendahl, S. Streubel, K. Valerius, M. Zboril, and Ch. Weinheimer, An angular selective electron source for theKATRIN experiment, Journal of Instr. 9 (2014) P11020

S. Van Gorp, M. Breitenfeldt, M. Tandecki, M. Beck, P. Finlay, F. Glück, A. Herlert, V. Kozlov, T. Porobic, G. Soti, E. Traykov, F. Wauters, Ch. Weinheimer, D. Zakoucky and N. Severijns, First beta-neutrino correlation measurement from the recoil energy spectrum of Penning trapped 35Ar ions, Phys. Rev. C 90 (2014) 025502

J. Karch, Yu. Sobolev, M. Beck, K. Eberhardt, G. Hampel, W. Heil, R. Kieser, T. Reich, N. Trautmann, and M. Ziegner, Performance of the solid deuterium ultra-cold neutron source at the pulsed reactor TRIGA Mainz, European Physical Journal A 50 (2014) 78

S. Bauer, B. Grees, D. Spitzer, M. Beck, R. Bottesch, H.-W. Ortjohann, B. Ostrick, T. Schäfer, H.H. Telle, A. Wegmann, M. Zboril and C. Weinheimer, Ellipsometry with polarisation analysis at cryogenic temperatures inside a vacuum chamber, Review of Scientific Instruments 84 (2013) 123103

M. Zboril, S. Bauer, M. Beck, J. Bonn, O. Dragoun, J. Jakubek, K. Johnston, A. Kovalík, E. W. Otten, K. Schlösser, M. Slezák, A. Spalek, T. Thümmler, D. Venos, J. Zemlicka, C. Weinheimer, Ultra-stable implanted 83Rb/83mKr electron sources for the energy scale monitoring in the KATRIN experiment, Journal of Inst. 8 (2013) P03009

full list of publications

Recent talks and presentations

3.7.2015 “

Poster at the „Institutstreff“ at the Institut für Physik of Mainz university

18.6.2015 “Untersuchung des elektroschwachen Standardmodells mit dem beta-Zerfall des Neutrons”

Seminar talk at Bayreuth university

26.5.2015 “Detectorelectronics aSPECT”

aSPECT collaboration meeting, ILL, Grenoble, 2015

27.3.2015 “Status report of the neutron lifetime experiment tau-SPECT”,

Spring meeting of the German physical society, Heidelberg 2015

19.12.2014 “Investigating neutron beta-decay with the aSPECT experiment”

Seminar talk at Münster university

30.10.2014 “Status of the simulations for the aSPECT experiment in Mainz”

aSPECT collaboration meeting, Mainz, 2014

30.10.2014 “Detectorelectronics aSPECT”

aSPECT collaboration meeting, Mainz, 2014

3.9.2014 „Results from the aSPECT experiment”, Solvay workshop “Beta-Decay Weak Interaction Studies in the Era of the LHC ”, Brussels, invited talk.

list of presentations since 2009