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Machado, J., C. I. Szabo, J. P. Santos, P. Amaro, M. Guerra, A. Gumberidze, Guojie Bian, J. M. Isac, and P. Indelicato. "{High-precision measurements of $n=2\rightarrow n=1$ transition energies and level widths in He- and Be-like argon ions}." Physical Review A. 97 (2018): 032517. AbstractWebsite

Phys. Rev. A 97, 032517 (2018). doi:10.1103/PhysRevA.97.032517

Diepold, Marc, Luis M. P. Fernandes, Jorge Machado, Pedro Amaro, Marwan Abdou-Ahmed, Fernando D. Amaro, Aldo Antognini, Fran{\c c}ois Biraben, Tzu-Ling Chen, Daniel S. Covita, Andreas J. Dax, Beatrice Franke, Sandrine Galtier, Andrea L. Gouvea, Johannes Götzfried, Thomas Graf, Theodor W. Hänsch, Malte Hildebrandt, Paul Indelicato, Lucile Julien, Klaus Kirch, Andreas Knecht, Franz Kottmann, Julian J. Krauth, Yi-Wei Liu, Cristina M. B. Monteiro, Fran{\c c}oise Mulhauser, Boris Naar, Tobias Nebel, Fran{\c c}ois Nez, José Paulo Santos, Joaquim M. F. dos Santos, Karsten Schuhmann, Csilla I. Szabo, David Taqqu, João F. C. A. Veloso, Andreas Voss, Birgit Weichelt, and Randolf Pohl. "{Improved x-ray detection and particle identification with avalanche photodiodes}." Review of Scientific Instruments. 86 (2015): 053102. AbstractWebsite
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Boillos, J. M., D. Cortina-Gil, J. Benlliure, J. L. Rodr{\'ıguez-Sánchez, H. Alvarez-Pol, L. Atar, T. Aumann, V. V. Avdeichikov, S. Beceiro-Novo, D. Bemmerer, C. A. Bertulani, K. Boretzky, M. J. G. Borge, M. Caamano, C. Caesar, E. Casarejos, W. Catford, J. Cederkäll, M. Chartier, L. Chulkov, E. Cravo, R. N. P. Crespo, I. Dillmann, Diaz P. Fernandez, Z. Elekes, J. Enders, O. Ershova, A. Estrade, F. Farinon, L. M. Fraile, M. Freer, Galaviz D. Redondo, H. Geissel, R. Gernhäuser, P. Golubev, K. Göbel, J. Hagdahl, T. Heftrich, M. Heil, M. Heine, A. Heinz, A. Henriques, M. Holl, A. Hufnagel, A. Ignatov, H. T. Johansson, B. Jonson, J. Kahlbow, N. Kalantar-Nayestanaki, R. Kanungo, A. Kelic-Heil, A. Knyazev, T. Kröll, N. Kurz, M. Labiche, C. Langer, T. Le Bleis, R. Lemmon, S. Lindberg, J. F. D. C. Machado, J. Marganiec, A. Movsesyan, E. Nacher, M. A. Najafi, T. Nilsson, C. Nociforo, V. Panin, S. Paschalis, A. Perea, M. Petri, S. Pietri, R. Plag, R. Reifarth, G. Ribeiro, C. Rigollet, D. M. Rossi, M. Röder, D. Savran, H. Scheit, H. Simon, O. Sorlin, I. J. Syndikus, J. T. Taylor, O. Tengblad, R. Thies, Y. Togano, M. Vandebrouck, P. J. F. Velho, V. Volkov, A. Wagner, F. Wamers, H. Weick, C. Wheldon, G. L. Wilson, J. S. Winfield, P. Woods, D. Yakorev, M. Zhukov, A. Zilges, and K. Zuber. "{Isotopic cross sections of fragmentation residues produced by light projectiles on carbon near $400A$ MeV}." (2022): 1-13. Abstract

Phys. Rev. C 105, 014611 (2022). doi:10.1103/PhysRevC.105.014611

Pohl, Randolf, Fran{\c c}ois Nez, Luis M. P. Fernandes, Marwan Abdou Ahmed, Fernando D. Amaro, Pedro Amaro, Fran{\c c}ois Biraben, João M. R. Cardoso, Daniel S. Covita, Andreas Dax, Satish Dhawan, Marc Diepold, Beatrice Franke, Sandrine Galtier, Adolf Giesen, Andrea L. Gouvea, Johannes Götzfried, Thomas Graf, Theodor W. Hänsch, Malte Hildebrandt, Paul Indelicato, Lucile Julien, Klaus Kirch, Andreas Knecht, Paul Knowles, Franz Kottmann, Julian J. Krauth, Eric-Olivier Le Bigot, Yi-Wei Liu, José A. M. Lopes, Livia Ludhova, Jorge Machado, Cristina M. B. Monteiro, Fran{\c c}oise Mulhauser, Tobias Nebel, Paul Rabinowitz, Joaquim M. F. dos Santos, José Paulo Santos, Lukas A. Schaller, Karsten Schuhmann, Catherine Schwob, Csilla I. Szabo, David Taqqu, João F. C. A. Veloso, Andreas Voss, Birgit Weichelt, and Aldo Antognini. "{Laser Spectroscopy of Muonic Atoms and Ions}." Proceedings of the 12th International Conference on Low Energy Antiproton Physics (LEAP2016). Journal of the Physical Society of Japan, 2017. Abstract
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Chiari, M., E. Alves, Bogdanović I. Radović, J. Cruz, L. Csedreki, M. Fonseca, D. Galaviz, A. Henriques, M. Jak{\v s}ić, A. P. Jesus, O. Kakuee, Á. Z. Kiss, A. Lagoyannis, F. Louren{\c c}o, H. Lu{\'ıs, J. Machado, B. Melon, C. K. Nuviadenu, L. Salvestrini, N. Sharifzadeh, Z. Siketić, G. Á. Sz{\'ıki, Z. Szikszai, P. Teubig, P. Velho, I. Zamboni, and M. Zarza. "{Measurement of proton induced $\gamma$-ray emission cross sections on Na from 1.0 to 4.1 MeV}." Nuclear Inst. and Methods in Physics Research, B (2017): 1-11. AbstractWebsite
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Krauth, Julian J., Karsten Schuhmann, Marwan Abdou Ahmed, Fernando D. Amaro, Pedro Amaro, Fran{\c c}ois Biraben, Tzu-Ling Chen, Daniel S. Covita, Andreas J. Dax, Marc Diepold, Luis M. P. Fernandes, Beatrice Franke, Sandrine Galtier, Andrea L. Gouvea, Johannes Götzfried, Thomas Graf, Theodor W. Hänsch, Jens Hartmann, Malte Hildebrandt, Paul Indelicato, Lucile Julien, Klaus Kirch, Andreas Knecht, Yi-Wei Liu, Jorge Machado, Cristina M. B. Monteiro, Fran{\c c}oise Mulhauser, Boris Naar, Tobias Nebel, Fran{\c c}ois Nez, Joaquim M. F. dos Santos, José Paulo Santos, Csilla I. Szabo, David Taqqu, João F. C. A. Veloso, Jan Vogelsang, Andreas Voss, Birgit Weichelt, Randolf Pohl, Aldo Antognini, and Franz Kottmann. "{Measuring the $\alpha$-particle charge radius with muonic helium-4 ions}." Nature. 589 (2021): 527-531. AbstractWebsite

The energy levels of hydrogen-like atomic systems can be calculated with great precision. Starting from their quantum mechanical solution, they have been refined over the years to include the electron spin, the relativistic and quantum field effects, and tiny energy shifts related to the complex structure of the nucleus. These energy shifts caused by the nuclear structure are vastly magnified in hydrogen-like systems formed by a negative muon and a nucleus, so spectroscopy of these muonic ions can be used to investigate the nuclear structure with high precision. Here we present the measurement of two 2S–2P transitions in the muonic helium-4 ion that yields a precise determination of the root-mean-square charge radius of the $\alpha$ particle of 1.67824(83) femtometres. This determination from atomic spectroscopy is in excellent agreement with the value from electron scattering1, but a factor of 4.8 more precise, providing a benchmark for few-nucleon theories, lattice quantum chromodynamics and electron scattering. This agreement also constrains several beyond-standard-model theories proposed to explain the proton-radius puzzle2–5, in line with recent determinations of the proton charge radius6–9, and establishes spectroscopy of light muonic atoms and ions as a precise tool for studies of nuclear properties. The 2S–2P transitions in muonic helium-4 ions are measured using laser spectroscopy and used to obtain an $\alpha$-particle charge-radius value five times more precise than that from electron scattering.

Guerra, M., P. Amaro, J. Machado, and J. P. Santos. "{Modified Binary-Encounter-Bethe Model for Electron Impact Ionization Cross Sections of Highly Charged Ions}." Vol. 635. Journal of Physics: Conference Series, 2015. 052067. Abstract
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Martins, Lu{\'ıs, Pedro Amaro, Sofia Pessanha, Mauro Guerra, Jorge Machado, Maria Luisa Carvalho, and José Paulo Santos. "{Multiconfiguration Dirac–Fock calculations of Zn K-shell radiative and nonradiative transitions}." X-Ray Spectrom.. 48 (2019): 212-8. AbstractWebsite

Zinc K-shell radiative and radiationless transition rates are calculated using the multiconfiguration Dirac–Fock method. Correlation up to the 4p orbital is included in almost all transition rate cal...

Lopes, A., A. Gabriel, J. Machado, P. Ribeiro, R. Gomes, João M. P. Coelho, C. O. Silva, C. P. Reis, J. P. Santos, and P. Vieira. "{Multiple Source Phototherapy in Breast Cancer: A Viability Study}." 9th International Conference on Biomedical Electronics and Devices. SCITEPRESS - Science and and Technology Publications, 2016. 247-250. Abstract
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Boretzky, K., I. Gasparic, M. Heil, J. Mayer, A. Heinz, C. Caesar, D. Kresan, H. Simon, H. T. Törnqvist, D. Körper, G. Alkhazov, L. Atar, T. Aumann, D. Bemmerer, S. V. Bondarev, L. T. Bott, S. Chakraborty, M. I. Cherciu, L. V. Chulkov, M. Ciobanu, U. Datta, E. De Filippo, C. A. Douma, J. Dreyer, Z. Elekes, J. Enders, D. Galaviz, E. Geraci, B. Gnoffo, K. Göbel, V. L. Golovtsov, Gonzalez D. Diaz, N. Gruzinsky, T. Heftrich, H. Heggen, J. Hehner, T. Hensel, E. Hoemann, M. Holl, A. Horvat, Á. Horváth, G. Ickert, Jelavić D. Malenica, H. T. Johansson, B. Jonson, J. Kahlbow, N. Kalantar-Nayestanaki, A. Kelic-Heil, M. Kempe, K. Koch, N. G. Kozlenko, A. G. Krivshich, N. Kurz, V. Kuznetsov, C. Langer, Y. Leifels, I. Lihtar, B. Löher, J. Machado, N. S. Martorana, K. Miki, T. Nilsson, E. M. Orischin, E. V. Pagano, S. Pirrone, G. Politi, P. M. Potlog, A. Rahaman, R. Reifarth, C. Rigollet, M. Röder, D. M. Rossi, P. Russotto, D. Savran, H. Scheit, F. Schindler, D. Stach, E. Stan, Stomvall J. Gill, P. Teubig, M. Trimarchi, L. Uvarov, M. Volknandt, S. Volkov, A. Wagner, V. Wagner, S. Wranne, D. Yakorev, L. Zanetti, A. Zilges, K. Zuber, and R. 3B. collaboration. "{NeuLAND: The high-resolution neutron time-of-flight spectrometer for R3B at FAIR}." Nuclear Inst. and Methods in Physics Research, A. 1014 (2021): 165701. AbstractWebsite

Nuclear Inst. and Methods in Physics Research, A, 1014 (2021) 165701. doi:10.1016/j.nima.2021.165701

Reifarth, R., et al. "{Nuclear astrophysics with radioactive ions at FAIR}." Vol. 665. Journal of Physics: Conference Series, 2016. 012044. Abstract
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Monteiro, C. M. B., F. D. Amaro, M. S. Sousa, M. Abdou-Ahmed, P. Amaro, F. Biraben, T. Chen, D. S. Covita, A. J. Dax, M. Diepold, L. M. P. Fernandes, B. Franke, S. Galtier, A. L. Gouvea, J. Götzfried, T. Graf, T. W. Hänsch, M. Hildebrandt, P. Indelicato, L. Julien, K. Kirch, A. Knecht, F. Kottmann, J. J. Krauth, Y. Liu, J. Machado, F. Mulhauser, B. Naar, T. Nebel, F. Nez, R. Pohl, J. P. Santos, J. M. F. dos Santos, K. Schuhmann, C. I. Szabo, D. Taqqu, J. F. C. A. Veloso, and A. Antognini. "{On the double peak structure of avalanche photodiode response to monoenergetic x-rays at various temperatures and bias voltages}." Journal of Instrumentation. 13 (2018): C01033. Abstract
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Martins, L., P. Amaro, S. Pessanha, M. Guerra, J. Machado, M. L. Carvalho, J. P. Santos, and P. Indelicato. "{Overview and calculation of X-ray K-shell transition yields for comprehensive data libraries}." X-Ray Spectrom.. 62 (2020): 63-26. AbstractWebsite

The simulation of atomic relaxation relies on data libraries with tabulated partial fluorescence yield values of radiative transitions, commonly derived from the Evaluated Atomic Data Library (EADL)....

Machado, J., J. Adamczewski-Musch, A. Blanco, K. Boretzky, P. Cabanelas, L. Cartegni, Ferreira R. Marques, P. Fonte, J. Fruehauf, D. Galaviz, M. Heil, A. Henriques, G. Ickert, D. Körper, L. Lopes, M. Palka, A. Pereira, D. Rossi, H. Simon, P. Teubig, M. Traxler, P. Velho, S. Altstadt, L. Atar, T. Aumann, D. Bemmerer, C. Caesar, A. Charpy, Z. Elekes, E. Fiori, I. Gasparic, J. Gerbig, K. Göbel, T. Heftrich, M. Heine, A. Heinz, M. Holl, A. Ignatov, J. Isaak, H. Johansson, A. Kelic-Heil, C. Lederer, S. Lindberg, B. Löher, J. Marganiec, M. Martensson, T. Nilsson, V. Panin, S. Paschalis, M. Petri, R. Plag, M. Pohl, G. Rastrepina, R. Reifarth, T. P. Reinhardt, M. Röder, D. Savran, H. Scheit, P. Schrock, J. Silva, D. Stach, F. Strannerdahl, R. Thies, A. Wagner, F. Wamers, and M. Weigand. "{Performance of timing Resistive Plate Chambers with protons from 200 to 800 MeV}." Journal of Instrumentation. 10 (2015): C01043. AbstractWebsite
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Blanco, A., J. Adamczewski-Musch, K. Boretzky, P. Cabanelas, L. Cartegni, Ferreira R. Marques, P. Fonte, J. Fruehauf, D. Galaviz, M. Heil, A. Henriques, G. Ickert, D. Körper, L. Lopes, M. Palka, A. Pereira, D. Rossi, H. Simon, P. Teubig, M. Traxler, P. Velho, S. Altstadt, L. Atar, T. Aumann, D. Bemmerer, C. Caesar, A. Charpy, Z. Elekes, E. Fiori, I. Gasparic, J. Gerbig, K. Göbel, T. Heftrich, M. Heine, A. Heinz, M. Holl, A. Ignatov, J. Isaak, H. Johansson, A. Kelic-Heil, C. Lederer, S. Lindberg, B. Löher, J. Machado, J. Marganiec, M. Martensson, T. Nilsson, V. Panin, S. Paschalis, M. Petri, R. Plag, M. Pohl, G. Rastrepina, R. Reifarth, T. P. Reinhardt, M. Röder, D. Savran, H. Scheit, P. Schrock, J. Silva, D. Stach, F. Strannerdahl, R. Thies, A. Wagner, F. Wamers, and M. Weigand. "{Performance of timing resistive plate chambers with relativistic neutrons from 300 to 1500 MeV}." Journal of Instrumentation. 10 (2015): C02034. AbstractWebsite
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Syndikus, I., M. Petri, A. O. Macchiavelli, S. Paschalis, C. A. Bertulani, T. Aumann, H. Alvarez-Pol, L. Atar, S. Beceiro-Novo, J. Benlliure, J. M. Boillos, K. Boretzky, M. J. G. Borge, B. A. Brown, M. Caamano, C. Caesar, E. Casarejos, W. Catford, J. Cederkäll, S. Chakraborty, L. V. Chulkov, D. Cortina-Gil, E. Cravo, R. Crespo, Datta U. Pramanik, I. Dillmann, Diaz P. Fernandez, Z. Elekes, J. Enders, F. Farinon, L. M. Fraile, D. Galaviz, H. Geissel, R. Gernhäuser, P. Golubev, K. Göbel, M. Heil, M. Heine, A. Heinz, A. Henriques, M. Holl, H. T. Johansson, B. Jonson, N. Kalantar-Nayestanaki, R. Kanungo, A. Kelic-Heil, T. Kröll, N. Kurz, C. Langer, T. Le Bleis, J. Machado, J. Marganiec-Gałązka, E. Nacher, T. Nilsson, C. Nociforo, V. Panin, A. Perea, S. B. Pietri, R. Plag, A. Rahaman, R. Reifarth, A. Revel, G. Ribeiro, C. Rigollet, D. M. Rossi, D. Savran, H. Scheit, H. Simon, O. Sorlin, O. Tengblad, Y. Togano, M. Vandebrouck, V. Volkov, F. Wamers, C. Wheldon, G. L. Wilson, J. S. Winfield, H. Weick, P. Woods, D. Yakorev, M. Zhukov, A. Zilges, K. Zuber, and R. 3B. collaboration. "{Probing the Z=6 spin-orbit shell gap with (p,2p) quasi-free scattering reactions}." Physics Letters B. 809 (2020): 135748. AbstractWebsite

Physics Letters B, 809 (2020) 135748. 10.1016/j.physletb.2020.135748

Amaro, Pedro, Beatrice Franke, Julian J. Krauth, Marc Diepold, Filippo Fratini, Laleh Safari, Jorge Machado, Aldo Antognini, Franz Kottmann, Paul Indelicato, Randolf Pohl, and José Paulo Santos. "{Quantum interference effects in laser spectroscopy of muonic hydrogen, deuterium, and helium-3}." Physical Review A. 92 (2015): 022514. AbstractWebsite
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Holl, M., V. Panin, H. Alvarez-Pol, L. Atar, T. Aumann, S. Beceiro-Novo, J. Benlliure, C. A. Bertulani, J. M. Boillos, K. Boretzky, M. Caamano, C. Caesar, E. Casarejos, W. Catford, J. Cederkäll, L. Chulkov, D. Cortina-Gil, E. Cravo, I. Dillmann, Diaz P. Fernandez, Z. Elekes, J. Enders, L. M. Fraile, Galaviz D. Redondo, R. Gernhäuser, P. Golubev, T. Heftrich, M. Heil, M. Heine, A. Heinz, A. Henriques, H. T. Johansson, B. Jonson, N. Kalantar-Nayestanaki, R. Kanungo, A. Kelic-Heil, T. Kröll, N. Kurz, C. Langer, T. Le Bleis, S. Lindberg, J. Machado, E. Nacher, M. A. Najafi, T. Nilsson, C. Nociforo, S. Paschalis, M. Petri, R. Reifarth, G. Ribeiro, C. Rigollet, D. M. Rossi, D. Savran, H. Scheit, H. Simon, O. Sorlin, I. Syndikus, O. Tengblad, Y. Togano, M. Vandebrouck, P. Velho, F. Wamers, H. Weick, C. Wheldon, G. L. Wilson, J. S. Winfield, P. Woods, M. Zhukov, K. Zuber, and R. 3B. collaboration. "{Quasi-free neutron and proton knockout reactions from light nuclei in a wide neutron-to-proton asymmetry range}." Physics Letters B. 795 (2019): 682-688. AbstractWebsite

Physics Letters B, 795 (2019) 682–688. 10.1016/j.physletb.2019.06.069

Diaz Fernandez, P., et al. "{Quasifree ( p,pN) scattering of light neutron-rich nuclei near N=14}." Physical Review C. 97 (2018): 1459. Abstract
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Machado, J., Guojie Bian, Nancy Paul, M. Trassinelli, P. Amaro, M. Guerra, C. I. Szabo, A. Gumberidze, J. M. Isac, J. P. Santos, J. P. Desclaux, and P. Indelicato. "{Reference-free measurements of the 1s2s2p2P1/2,3/2o$\rightarrow$1s22s2S1/2and 1s2s2p4P5/2$\rightarrow$1s22s2S1/2transition energies and widths in lithiumlike sulfur and argon ions}." Physical Review A. 101 (2020): 062505. AbstractWebsite
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Amaro, Pedro, Filippo Fratini, Laleh Safari, Jorge Machado, Mauro Guerra, Paul Indelicato, and José Paulo Santos. "{Relativistic evaluation of the two-photon decay of the metastable $1s^2\,2s\,2p\,^3P_0$ state in berylliumlike ions with an effective-potential model}." Physical Review A. 93 (2016): 032502. AbstractWebsite
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Machado, J., A. Blanco, P. Fonte, D. Galaviz, L. Lopes, Ferreira R. Marques, and P. Teubig. "{Simulations of a new detection concept for high-energy neutrons based on timing RPCs}." Journal of Instrumentation. 8 (2013): P07020. AbstractWebsite
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Guerra, M., P. Amaro, J. Machado, and J. P. Santos. "{Single differential electron impact ionization cross sections in the binary-encounter-Bethe approximation for the low binding energy regime}." Journal of Physics B: Atomic, Molecular and Optical Physics. 48 (2015): 1-9. AbstractWebsite
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Ménesguen, Y., M. - C. Lépy, Y. Ito, M. Yamashita, S. Fukushima, T. Tochio, M. Polasik, K. Słabkowska, Ł. Syrocki, P. Indelicato, J. P. Gomilsek, J. P. Marques, J. M. Sampaio, J. Machado, P. Amaro, M. Guerra, J. P. Santos, and F. Parente. "{Structure of single KL$^0$-, double KL$^1$-, and triple KL$^2$- ionization in Mg, Al, and Si targets induced by photons, and their absorption spectra}." Radiation Physics and Chemistry. 194 (2022): 110048. AbstractWebsite

Radiation Physics and Chemistry, 194 (2022) 110048. doi:10.1016/j.radphyschem.2022.110048

Thies, R., et al. "{Systematic investigation of projectile fragmentation using beams of unstable B and C isotopes}." Physical Review C. 93 (2016): 054601. AbstractWebsite
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