Fatiha Benmokhtar

Associate Professor
Bayer School of Natural and Environmental Sciences
Physics

Fisher Hall 306
Phone: 412.396.6353
benmokhtarf@duq.edu
https://userweb.jlab.org/~fatiha/

Education:

Ph.D., Rutgers University
Magister from USTHB d'Alger/with ISN de Grenoble
Research

Particle Detector

I work with colleagues from other universities and laboratories from all around the world in an area called Intermediate Energy Nuclear Physics. I investigate strong Quantum Chromo-Dynamics QCD (to study the structure of the proton and the neutron), nuclear structure, and physics beyond the standard model of Particle Physics. I am mainly involved in experiments at the Thomas Jefferson National Accelerator Facility (TJNAF) in Newport News Virginia www.jlab.org. Although the final experiments are carried out at TJNAF, most of the building, testing of equipment, developments of high tech electronics and data analysis is done within a university environment.

Duquesne Physics undergraduate students are deeply involved in this research, through software development and data analysis at the University and hardware work and electronics tests at Jefferson Lab or INFN laboratories in Italy.

A- Research Interest and Expertise:

  1. Short Range Correlations in light nuclei (2000-Present): Spokesperson of the E08-009 Hall A experiment, aiming to measure proton momentum distribution in 4He. I am the contact person for a paper submitted for publication in PRC.

  2. Parton Contributions to the Nucleon Spin (2008-Present): Spokesperson of E12-09007 experiment, aiming to measure parton distribution functions.
    • Analysis Coordinator of the CLAS12 RICH detector project. First RICH was built and is functional, second RICH is under construction. Lead PI in an NSF MRI grant proposal.
  3. Parity Violation (2004-Present): Analysis coordinator of the G0Backward angle experiment.
    • Collaborator and co-author in the PVDIS, Qweak and the future MOLLER experiment.

B- Collaborations:

  • Jefferson Lab Users group (2000-Present)
  • Jefferson Lab Hall A collaboration (2000-Present)
  • Jefferson Lab Hall C collaboration (2004-Present) (Gzero, Qweak, HKS )
  • The MUSE collaboration at PSI. (2011-Present)
  •  EICUG: Electron Ion Collider Unser Group. (2011-Present)
  •  Jefferson Lab CLAS12 collaboration (2018-Present)

C- Funding History:

  1. National Science Foundation-2020 (NSF) $210,000.00): Sole P.I. Benmokhtar F., "Studies of Parton Distributions in the Nucleon." July 2020- July 2023

  2. National Science Foundation-2019 ($20,000): Sole P.I. Benmokhtar F., July 23, 2019. Bridge funding. Studies of Parton Distributions with Kaons.

  3. National Science Foundation: ($183,000.00): Sole PI: Benmokhtar F., Studies of Parton Distributions using Kaons at Jefferson Lab: July 15, 2016 - June 30 2019, Awarded amount $183,000.00. Duquesne University.

  4. Department of Energy / Jefferson Lab: Awarded $110,437.97 (2013-2017) Software Development for a Ring Imaging Detector: Sole PI: Benmokhtar F. These are series of small awards ranging from $1,500.00 to $20,000.00 in support of my work and my students' work on software development for a Ring Imaging Cerenkov (RICH) detector.

  5. National Science Foundation Sub-Award: Studies of Nucleon Structure Using Electromagnetic Probes at Jefferson Laboratory: (05/01/2013-05/31/2015), amount $43,793.44. PI Benmokhtar F., Duquesne University.

  6. National Science Foundation: Studies of Nucleon Structure using Electromagnetic Probes at Jefferson Laboratory: (06/01/2012-05/31/2015), amount $555,000.00. E. Brash, Benmokhtar F. (Co-PI), D. Heddle. Christopher Newport University. My share in this grant is: $140,000.00. I proposed to work on the study of partonic distributions using Kaons at Jefferson lab as well as analysis of 4He experiment, and Qweak experiment.

  7. DoE/Jefferson Lab: ½ salary plus fringe benefits support for the years I was at CNU during my joint position.

  8. Faculty Development Fund, Duquesne University: (2016) "Study of the Proton Radius at the Paul Scherrer Institute", amount: $9,968.00.

Publications

A full list of publications can be found

at: https://www.researchgate.net/profile/Fatiha_Benmokhtar/

Selected recent publications:

  1. Benmokhtar F., with the CLAS collaboration: "Measurement of the proton spin structure at long distances", arXiv:2102.02658v1 [nucl-ex]. Accepted for publication in NATURE. Feb 4 2021.

  2. Benmokhtar F., with the CLAS collaboration: "Beam Spin Asymmetry in Semi-Inclusive Electroproduction of Hadron Pairs", published in Phys. Rev. Letts. (Phys. Rev. Lett. 126, 062002 - Published 12 February (2021).

  3. Benmokhtar F., with the CLAS collaboration: "Differential cross sections for Lambda (1520) using photoproduction at CLAS", by U. Shrestha et al. has been accepted for publication as a Regular Article in Physical Review C. (Feb. 2021).

  4. Benmokhtar F., with the CLAS collaboration: "Photoproduction of the f2(1270) meson using the CLAS detector", Accepted for publication in Phys. Rev. Lett. (Feb. 2021).

  5. Benmokhtar F., with the Hall A collaboration: "Novel observation of isospin structure of short-range correlations in calcium isotopes", (2020). Physical Review C, 102 (6), art. no. 064004. DOI: https://doi.org/10.1103/PhysRevC.102.064004

  6. Benmokhtar F., with the CLAS collaboration: "Photoproduction of mesons off the proton for 1.2<E<4.7 GeV using CLAS at Jefferson Laboratory", (2020). Physical Review C, 102 (6), art. no. 065203. DOI: https://doi.org/10.1103/PhysRevC.102.065203

  7. Benmokhtar F., with the CLAS collaboration: "Extraction of Beam-Spin Asymmetries from the Hard Exclusive π+ Channel off Protons in a Wide Range of Kinematics".
    (2020) Physical Review Letters, 125 (18), art. no. 182001. DOI: https://doi.org/10.1103/PhysRevLett.125.182001

  8. Benmokhtar F., with the CLAS collaboration: "Precision Measurement of the Beam-Normal Single-Spin Asymmetry in Forward-Angle Elastic Electron-Proton Scattering"
    (2020) Physical Review Letters, 125 (11), art. no. 112502. DOI: https://doi.org/10.1103/PHYSREVLETT.125.112502

  9. Benmokhtar F., with the CLAS collaboration: "Beam-target helicity asymmetry E in K+Σ- photoproduction on the neutron" (2020) Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 808, 135662. DOI: https://doi.org/10.1016/j.physletb.2020.135662

  10. Benmokhtar F., with the Hall A collaboration: "Erratum to: Dispersive corrections in elastic electron-nucleus scattering: an investigation in the intermediate energy regime and their impact on the nuclear matter", (The European Physical Journal A, (2020), 56, 5, (126), 10.1140/epja/s10050-020-00135-7) (2020) European Physical Journal A, 56 (9), art. no. 228. DOI: https://doi.org/10.1140/epja/s10050-020-00210-z

  11. Benmokhtar F., with the CLAS collaboration: "First measurement of direct photoproduction of the a2(1320)0 meson on the proton" (2020) Physical Review C, 102 (3), art. no. 032201. DOI: https://doi.org/10.1103/PhysRevC.102.032201

  12. Benmokhtar F., C. Pecar with the RICH working group: "The CLAS12 Ring Imaging Cherenkov detector" (2020) Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 964, art. no. 163791. DOI: https://doi.org/10.1016/j.nima.2020.163791

  13. Benmokhtar F., with the CLAS collaboration: "Probing Few-Body Nuclear Dynamics via H 3 and He 3 (e,e′p)pn Cross-Section Measurements" (2020) Physical Review Letters, 124 (21), art. no. 212501. DOI: https://doi.org/10.1103/PhysRevLett.124.212501

  14. Benmokhtar F., with the Qweak collaboration: "Parity-violating inelastic electron-proton scattering at low Q2 above the resonance region"' (2020). Physical Review C, 101 (5), art. no. 055503. DOI: https://doi.org/10.1103/PhysRevC.101.055503

  15. Benmokhtar F., with the Hall A collaboration: "Dispersive corrections in elastic electron-nucleus scattering: an investigation in the intermediate energy regime and their impact on the nuclear matter" (2020). European Physical Journal A, 56 (5), art. no. 126. DOI: https://doi.org/10.1140/epja/s10050-020-00135-7

  16. Benmokhtar F., R. Behary with the CLAS collaboration: "The CLAS12 Forward Tagger" (2020) Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 959, art. no. 163475. DOI: https://doi.org/10.1016/j.nima.2020.163475

  17. Benmokhtar F., with the CLAS collaboration: "The CLAS12 Spectrometer at Jefferson Laboratory" (2020) Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 959, art. no. 163419. DOI: https://doi.org/10.1016/j.nima.2020.163419

  18. Benmokhtar F., with the CLAS collaboration: "Probing the core of the strong nuclear interaction" (2020) NATURE, 578 (7796), pp. 540-544. DOI: https://doi.org/10.1038/s41586-020-2021-6

  19. RICH Group: M. Contalbrigo, E. Aaron, I. Balossino, L. Barion, Benmokhtar F., M. Benninghoff, E. Cisbani, C. Cuevas, C.Dickover, A. Kim, V. Kubarovsky, V. Lucherini, M. Mirazita, R. Malaguti, A. Movsisyan, P. Musico, D. Orecchini, B. Raydo, P. Rossie,, A. Scarabotto, S. Tomassini, M. Turisini "Single Photon Detection with the Multi-Anode CLAS12 RICH Detector", Nuclear Instruments and Methods in Physics Research A. DOI: https://doi.org/10.1016/j.nima.2019.04.077 (2020)

  20. RICH Group: M. Mirazita, Benmokhtar F., J. Goodwill, C. Pecar and the RICH group. "The large-area hybrid-optics CLAS12 RICH: Assembling, commissioning and first data-taking", Nuclear Instruments and Methods in Physics Research A. DOI: https://doi.org/10.1016/j.nima.2019.01.070 (2020)

  21. Benmokhtar F., with the CLAS collaboration: "Exclusive π0p electroproduction off protons in the resonance region at photon virtualities 0.4 GeV2≤Q2≤1 GeV2"
    (2020) Physical Review C, 101 (1), art. no. 015208. DOI: https://doi.org/10.1103/PhysRevC.101.015208

  22. Qweak Collaboration: Androić, D., Armstrong,...., Benmokhtar, F., et al., "Precision measurement of the weak charge of the proton". NATURE, 557 (7704), pp. 207-211. DOI: https://doi.org/ 10.1038/s41586-018-0096-0 (2018)

  23. RICH Group: Mirazita, M., Angelini, G., Balossino, I., Barion, L., Bailey, K., Benmokhtar, F., Brooks, W., Cisbani, E., Contalbrigo, M., Cuevas, C., Hafidi, K., Kim, A., Kubarovsky, V., Lucherini, V., Malaguti, R., Montgomery, R., Movsisyan, A., Musico, P., O'Connor, T., Orecchini, D., Pappalardo, L., Perrino, R., Pisano, S., Raydo, B., Rossi, P., Squerzanti, S., Tomassini, S., Turisini, M. "The large-area hybrid-optics RICH detector for the CLAS12 spectrometer". Nuclear Instruments and Methods in Physics Research, Section A, 876, pp. 54-58. DOI: https://doi.org/10.1016/j.nima.2017.01.020 (2017)

  24. RICH Group: Anefalos Pereira, S. Baltzell, N. Barion, L. et al.,.. "Test of the CLAS12 RICH large-scale prototype in the direct proximity focusing configuration". European Physical Journal A, 52(2), 1-15. DOI: https://doi.org/10.1140/epja/i2016-16023-4 (2016)

  25. Rakhman, A. Hafez, M. Nanda, S. Benmokhtar, F. et al., Souder, P.A. Tobias, W.A. (2016). "A high-finesse fabry-perot cavity with a frequency-doubled green laser for precision compton polarimetry at jefferson lab". Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 822, 82-96. DOI: https://doi.org/10.1016/j.nima.2016.03.085

  26. Qweak collaboration: Allison T., Anderson M., Androic D., Armstrong D. S., Asaturyan A., Averett T.D., Averill R., Balewski J., Beaufait J., Beminiwattha R.S., J. Benesch , Benmokhtar F. F., , . . . Zielinski, R. B. (2015). "The qweak experimental apparatus". Nuclear Instruments and Methods in Physics Research, Section A: 781, 105-133. DOI: https://doi.org/10.1016/j.nima.2015.01.023

  27. Parity Violation collaboration: Wang D., Pan K., Subedi R., Deng X., Ahmed Z., Allada K., Aniol K.A., Armstrong D.S., Arrington J., Bellini V., Beminiwattha R., Benesch J., Benmokhtar F., . . . Zheng, X. (2015). "Measurement of parity-violating asymmetry in electron-deuteron inelastic scattering". Physical Review C - Nuclear Physics, 91(4) DOI: https://doi.org/10.1103/PhysRevC.91.045506

  28. RICH Group: Contalbrigo, M. Baltzell, N. Benmokhtar, F. et al., (2014). "The large-area hybrid-optics CLAS12 RICH detector: Tests of innovative components". Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 766, 22-27. DOI: https://doi.org/10.1016/j.nima.2014.06.072

  29. SRC collaboration: Korover, I., Muangma, N., Hen, O., Shneor, ... Benmokhtar, F. , W. Bertozzi,. . . Zielinski, R. "Probing the repulsive core of the nucleon-nucleon interaction via the he 4 (e,e′pN) triple-coincidence reaction". Physical Review Letters, 113(2) doi:10.1103/PhysRevLett.113.022501 (2014).30.

  30. PV Collaboration: Wang D., Pan K., Subedi R., Deng X., Ahmed Z., Allada K., Aniol K.A., Armstrong D.S., Arrington J., Bellini V., Beminiwattha R., Benesch J., Benmokhtar F., . . . Zheng,. "Measurement of parity violation in electron-quark scattering". (2014) NATURE, 506(7486), 67-70. DOI: https://doi.org/10.1038/nature12964

  31. PV Collaboration: Wang D., Pan K., Subedi R., Deng X., Ahmed Z., Allada K., Aniol K.A., Armstrong D.S., Arrington J., Bellini V., Beminiwattha R., Benesch J., Benmokhtar F., . . . Zheng, X. "Measurements of parity-violating asymmetries in electron-deuteron scattering in the nucleon resonance region". (2013). Physical Review Letters, 111(8) DOI: https://doi.org/10.1103/PhysRevLett.111.082501

  32. Parno, D. S., Friend, M., Mamyan, V., Benmokhtar, F., Camsonne, A., Franklin, G. B., . . . Quinn, B. (2013). "Comparison of modeled and measured performance of a GSO crystal as gamma detector". Nuclear Instruments and Methods in Physics Research, Section A:, 728, 92-96. DOI: https://doi.org/10.1016/j.nima.2013.05.154

  33. Gzero Collaboration: Androić, D., Armstrong, D. S., Arvieux, J., Bailey, S. L., Beck, D. H., Beise, E. J., . . . Wood, S. A. (2012). "Measurement of the parity-violating asymmetry in inclusive electro-production of π - near the Δ0 resonance". Physical Review Letters, 108(12) DOI: https://doi.org/10.1103/PhysRevLett.108.122002

  34. Friend, M., Parno, D., Benmokhtar, F., Camsonne, A., Dalton, M. M., Franklin, G. B., . . . Tobias, A. (2012). "Upgraded photon calorimeter with integrating readout for the hall A compton polarimeter at jefferson lab". Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 676, 96-105. DOI: https://doi.org/10.1016/j.nima.2012.02.041

  35. Gzero Collaboration: Androić, D., Armstrong, D. S., Arvieux, J., Asaturyan, R., Averett, T. D., Bailey, S. L., . . . Zeps, V. (2011). "The G0 experiment: Apparatus for parity-violating electron scattering measurements at forward and backward angles". Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 646(1), 59-86. DOI: https://doi.org/10.1016/j.nima.2011.04.031

  36. Gzero Collaboration: Androić, D., Armstrong, D. S., Arvieux, J., Bailey, S. L., Beck, D. H., Beise, E. J., . . . Vanderhaeghen, M. (2011). "Transverse beam spin asymmetries at backward angles in elastic electron-proton and quasielastic electron-deuteron scattering". Physical Review Letters, 107(2) DOI: https://doi.org/10.1103/PhysRevLett.107.022501

  37. Gzero Collaboration: Androić, D., Armstrong, D. S., Arvieux, J., Bailey, S. L., Beck, D. H., Beise, E., Benesch, J. Benmokhtar, F., . . . Wood, S. A. (2010). "Strange quark contributions to parity-violating asymmetries in the backward angle g0 electron scattering experiment". Physical Review Letters, 104(1) DOI: https://doi.org/10.1103/PhysRevLett.104.012001

  38. SRC collaboration: Subedi, R., Shneor, R., Monaghan, P., Anderson, B. D., Aniol, K., Annand, J., . . . Zhu, L. "Probing cold dense nuclear matter". (2008) SCIENCE, 320(5882), 1476-1478. DOI: https://doi.org/10.1126/science.1156675

  39. SRC collaboration: Shneor, R., Monaghan, P., Subedi, R., Anderson, B. D., Aniol, K., Annand, J., . . . Zhu, L. (2007). "Investigation of proton-proton short-range correlations via the C12(e,e′pp) reaction". PRL, 99(7) DOI: https://doi.org/10.1103/PhysRevLett.99.072501

  40. F. Benmokhtar, Nottaris, E., Aniol, K. A., Bertozzi, W., Boeglin, W. U., . . . Wojtsekhowski, B. (2005). "Measurement of the3He(e, ép)pn reaction at high missing energies and momenta". Physical Review Letters, 94(8) DOI: https://doi.org/10.1103/PhysRevLett.94.082305

  41. SRC collaboration: Rvachev, M. M., Benmokhtar, F., Penel-Nottaris, E., Aniol, K. A., Bertozzi, W., Boeglin, W. U., . . . Wojtsekhowski, B. (2005). "Quasielastic He3(e,e′p)H2 reaction at Q2=1.5GeV2 for recoil momenta up to 1GeV/c". Physical Review Letters, 94(19) DOI: https://doi.org/10.1103/PhysRevLett.94.192302

Courses

PHYS200 Essential Physics
PHYS320 Theoretical methods for the Physical Sciences
PHYS401 Thermal Physics
PHYS470 Electricity and Magnetism
PHYS482 Particle Physics
PHYS487 Problems in PhysicS
PHYS-487 Senior Research
PHYS-340 Research for credits

Professional Membership

American Physical Society (APS) 2003- Present
American Association of Physics Teachers (AAPT) 2014-Present
Physics Honor Society 2014-Present
Thomas Jefferson National Accelerator Facility's users group 2000-present
Electron Ion Collider Users group 2010-now
Jefferson Lab CLAS12 member: 2018-Present
Pennsylvania Academy 2019-Present

Service

Reviewer
Reviewer of the Department of Energy grant proposals
Reviewer of the National Science Foundation grant proposals
Reviewer for Physics Review Letters
National Science Foundation GRFP Panelist
Reviewer of the American Physical Society/Division of Nuclear Physics Undergraduate students abstracts.

Conference Committees
Organizing committee, Conferences for Undergraduate Women in Physics (CUWiP), Pittsburgh, PA, 2020
Organizing committee, The 15th International Conference on Meson-Nucleon Physics and the Structure of the Nucleon, MENU-2019.
Organizing committee, Electron Ion-Collider Users group meeting, Catholic University of America. Washigton DC, 2018.
Member of the organizing committee, American Physical Society, Division of Nuclear Physics, meeting, Pittsburgh, PA 2017.
Session chair in many APS or APS/DNP meetings.
Organizer (chair) of the SuperBigBite Spectrometer workshop at Jefferson lab, 2010

University, School and Department Service
Member of the leadership team of the women in Science organization WIS@Du
Committee member of graduate students excellence in Teaching award 2019
Faculty development grant reviewer.
Member of the Undergraduate Research Program committee.
Computer committee, department of Physics