Publications

Export 18 results:
Sort by: Author Title Type [ Year (Desc)]
2022
Amaro, P., A. Adamczak, Abdou M. Ahmed, L. Affolter, F. D. Amaro, P. Carvalho, T. L. Chen, L. M. P. Fernandes, M. Ferro, D. Goeldi, T. Graf, M. Guerra, T. W. Hänsch, C. A. O. Henriques, Y. C. Huang, P. Indelicato, O. Kara, K. Kirch, A. Knecht, F. Kottmann, Y. W. Liu, J. Machado, M. Marszalek, R. D. P. Mano, C. M. B. Monteiro, F. Nez, J. Nuber, A. Ouf, N. Paul, R. Pohl, E. Rapisarda, J. M. F. dos Santos, J. P. Santos, P. A. O. C. Silva, L. Sinkunaite, J. T. Shy, K. Schuhmann, S. Rajamohanan, A. Soter, L. Sustelo, D. Taqqu, L. B. Wang, F. Wauters, P. Yzombard, M. Zeyen, and A. Antognini. "Laser excitation of the 1s-hyperfine transition in muonic hydrogen." SciPost Physics. 13 (2022). Abstract

The CREMA collaboration is pursuing a measurement of the ground-state hyperfine splitting (HFS) in muonic hydrogen (μp) with 1 ppm accuracy by means of pulsed laser spectroscopy to determine the two-photon-exchange contribution with 2×10-4 relative accuracy. In the proposed experiment, the μp atom undergoes a laser excitation from the singlet hyperfine state to the triplet hyperfine state, then is quenched back to the singlet state by an inelastic collision with a H2 molecule. The resulting increase of kinetic energy after the collisional deexcitation is used as a signature of a successful laser transition between hyperfine states. In this paper, we calculate the combined probability that a μp atom initially in the singlet hyperfine state undergoes a laser excitation to the triplet state followed by a collisional-induced deexcitation back to the singlet state. This combined probability has been computed using the optical Bloch equations including the inelastic and elastic collisions. Omitting the decoherence effects caused by the laser bandwidth and collisions would overestimate the transition probability by more than a factor of two in the experimental conditions. Moreover, we also account for Doppler effects and provide the matrix element, the saturation fluence, the elastic and inelastic collision rates for the singlet and triplet states, and the resonance linewidth. This calculation thus quantifies one of the key unknowns of the HFS experiment, leading to a precise definition of the requirements for the laser system and to an optimization of the hydrogen gas target where μp is formed and the laser spectroscopy will occur.

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

2021
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

2020
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

2019
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

2018
Atar, L., et al. "Quasifree ($p$, $2p$) Reactions on Oxygen Isotopes: Observation of Isospin Independence of the Reduced Single-Particle Strength." Phys. Rev. Lett.. 120 (2018): 052501. AbstractWebsite
n/a
Revel, A., et al. "Strong Neutron Pairing in $\textrm{core}+4n$ Nuclei." Phys. Rev. Lett.. 120 (2018): 152504. AbstractWebsite
n/a
Diaz Fernandez, P., et al. "{Quasifree ( p,pN) scattering of light neutron-rich nuclei near N=14}." Physical Review C. 97 (2018): 1459. Abstract
n/a
Schmidt, S., M. Willig, J. Haack, R. Horn, A. Adamczak, Abdou M. Ahmed, F. D. Amaro, P. Amaro, F. Biraben, P. Carvalho, T. L. Chen, L. M. P. Fernandes, T. Graf, M. Guerra, T. W. Hänsch, M. Hildebrandt, Y. - C. Huang, P. Indelicato, L. Julien, K. Kirch, A. Knecht, F. Kottmann, J. J. Krauth, Y. W. Liu, J. Machado, M. Marszalek, C. M. B. Monteiro, F. Nez, J. Nuber, D. N. Patel, E. Rapisarda, J. M. F. dos Santos, J. P. Santos, P. A. O. C. Silva, L. Sinkunaite, J. - T. Shy, K. Schuhmann, I. Schulthess, D. Taqqu, J. F. C. A. Veloso, L. - B. Wang, M. Zeyen, A. Antognini, and R. Pohl. "{The next generation of laser spectroscopy experiments using light muonic atoms}." Journal of Physics: Conference Series. Vol. 1138. 2018. 012010. Abstract
n/a
2017
Vandebrouck, M., et al. "{Effective proton-neutron interaction near the drip line from unbound states in $^{25,26}$F}." Physical Review C. 96 (2017): 054305. AbstractWebsite
n/a
Heine, M., et al. "{Determination of the neutron-capture rate of $^{17}$C for r-process nucleosynthesis}." Physical Review C. 95 (2017): 014613. AbstractWebsite
n/a
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
n/a
2016
Thies, R., et al. "{Systematic investigation of projectile fragmentation using beams of unstable B and C isotopes}." Physical Review C. 93 (2016): 054601. AbstractWebsite
n/a
Röder, Marko, et al. "{Coulomb dissociation of $^{20,21}$N}." Physical Review C. 93 (2016): 065807. AbstractWebsite
n/a
Cabanelas, P., J. Cruz, M. Fonseca, A. Henriques, F. Louren{\c c}o, H. Lu{\'ıs, J. Machado, Pires J. Ribeiro, A. M. Sánchez-Ben{\'ıtez, P. Teubig, P. Velho, M. Zarza-Moreno, D. Galaviz, and A. P. Jesus. "{Cross sections for proton induced high energy $\gamma$-ray emission (PIGE) in reaction F(p,$\gamma$)O at incident proton energies between 1.5 and 4 MeV}." Nuclear Inst. and Methods in Physics Research, B. 381 (2016): 110-113. AbstractWebsite
n/a
Reifarth, R., et al. "{Nuclear astrophysics with radioactive ions at FAIR}." Vol. 665. Journal of Physics: Conference Series, 2016. 012044. Abstract
n/a
2014
Altstadt, S. G., et al. "{$^{13,14}$B(n, $\gamma$) via Coulomb Dissociation for Nucleosynthesis towards the r-Process}." Nuclear Data Sheets. 120 (2014): 197-200. AbstractWebsite
n/a
2013
Caesar, C., et al. "{Beyond the neutron drip line: The unbound oxygen isotopes $^{25}$O and $^{26}$O}." Physical Review C. 88 (2013): 034313. AbstractWebsite
n/a