Group Thomas Aumann
Experimental Nuclear Physics with Exotic Ion Beams

Articles in Journals

Nuclear structure opportunities with GeV radioactive beams at FAIR
T. Aumann, C. A. Bertulani, M. Duer, T. Galatyuk, A. Obertelli, V. Panin, J.L. Rodríguez-Sánchez, R. Roth, and J. Stroth
Phil. Trans. R. Soc. A.382, 20230121 (2024)
Measurement of nuclear interaction cross sections towards neutron-skin thickness determination
L. Ponnath, T. Aumann, C.A. Bertulani, et al.
Phys. Lett. B 855, 138780 (2024)
Spectroscopy of deeply bound orbitals in neutron-rich Ca isotopes
P.J. Li, J. Lee, P. Doornenbal, et al.
Phys. Lett. B 855, 138828 (2024)
Constraining nucleon effective masses with flow and stopping observables from the SπRIT experiment
C.Y. Tsang, M. Kurata-Nishimura, M.B. Tsang, et al.
Phys. Lett. B 853, 138661 (2024)
New insight into knockout reactions from the two-proton halo nucleus 17Ne
F. Wamers, C. Lehr, J. Marganiec-Gałązka, et al.
Phys. Rev. C 109, 054602 (2024)
Onset of collectivity for argon isotopes close to N=32
B.D. Linh, A. Corsi, A. Gillibert, et al.
Phys. Rev. C 109, 034312 (2024)
First observation of 28O
Y. Kondo, N.L. Achouri, H.A. Falou, et al.
Nature 620, 965 (2023)
Validation of the 10Be Ground-State Molecular Structure Using 10Be(p,pα)6He Triple Differential Reaction Cross-Section Measurements
P.J. Li, D. Beaumel, J. Lee, et al.
Phys. Rev. Lett. 131, 212501 (2023)
Level structures of 56,58Ca cast doubt on a doubly magic 60Ca
S. Chen, F. Browne, P. Doornenbal et al.
Phys. Lett. B 843, 138025 (2023)
Unbound states in 17C and p-sd shell-model interactions
S. Kim, J.W. Hwang, Y. Satou et al.
Phys. Lett. B 836, 137629 (2023)
Neutrons from projectile fragmentation at 600 MeV/nucleon
P. Pawłowski; J. Brzychczyk; N. Buyukcizmeci et al.
Phys. Rev. C 108, 044610 (2023)
Method to evidence hypernuclear halos from a two-target interaction cross section measurement
Simone Velardita, Hector Alvarez-Pol, Thomas Aumann et al.
Eur. Phys. J. A 59, 139 (2023)
Matter radius of the doubly-magic 56Ni measured in a storage ring
M. von Schmid, T. Aumann, S. Gagchi et al.
Eur. Phys. J. A 59, 83 (2023)
Diverse mechanisms in proton knockout reactions from the Borromean nucleus 17Ne
F. Wamers, C. Lehr, J. Marganiec-Gałązka et al.
Eur. Phys. J. A 59, 154 (2023)
Observation of a correlated free four-neutron system
M. Duer, T. Aumann, R. Gernhäuser et al.
Nature 606, 678 (2022)
Extended p3/2 Neutron Orbital and the N = 32 Shell Closure in 52Ca
M. Enciu, H. N. Liu, A. Obertelli et al.
Phys. Rev. Lett. 129, 262501 (2022)
Unveiling the two-proton halo character of 17Ne: Exclusive measurement of quasi-free proton-knockout reactions
C.Lehr, F.Wamers, F.Aksouh et al.
Phys. Lett. B 827, 136957 (2022)
A first glimpse at the shell structure beyond 54Ca: Spectroscopy of 55K, 55Ca, and 57Ca
T. Koiwai, K. Wimmer, P. Doornenbal et al.
Phys. Lett. B 827, 136953 (2022)
Isotopic cross sections of fragmentation residues produced by light projectiles on carbon near 400 AMeV
J. M. Boillos, D. Cortina-Gil, J. Benlliure et al.
Phys. Rev. C 105, 014611 (2022)
“Southwestern” boundary of the N = 40 island of inversion: First study of low-lying bound excited states in 59V and 61V
Z. Elekes, M. M. Juhász, D. Sohler et al.
Phys. Rev. C 106, 064321 (2022)
Systematic study of Δ(1232) resonance excitations using single isobaric charge-exchange reactions induced by medium-mass projectiles of Sn
J. L. Rodríguez-Sánchez, J. Benlliure, I. Vidaña et al.
Phys. Rev. C 106, 014618 (2022)
Border of the island of inversion: Unbound states in 29Ne
M. Holl, S. Lindberg, A. Heinz et al.
Phys. Rev. C 105, 034301 (2022)
Isoscaling in central Sn+Sn collisions at 270 MeV/u
J. W. Lee, M. B. Tsang, C. Y. Tsang et al.
Eur. Phys. J. A 58, 201 (2022)
Nuclear fragmentation reactions as a probe of neutron skins in nuclei
E. A. Teixeira, T. Aumann, C. A. Bertulani, B. V. Carlson
Eur. Phys. J. A 58, 205 (2022)
A new Time-of-flight detector for the R3B setup
M. Heil, A. Kelić-Heil, L. Bott, et al.
Eur. Phys. J. A 58, 248 (2022)
PUMA, antiProton unstable matter annihilation
T. Aumann, W. Bartmann, O. Boine-Frankenheim et al.
Eur. Phys. J. A 58, 88 (2022)
Unperturbed inverse kinematics nucleon knockout measurements with a 48 GeV/c carbon beam
M. Patsyuk, J. Kahlbow, G. Laskaris, M. Duer et al.
Nature Physics 17, 693 (2021)
Formation of α clusters in dilute neutron-rich matter
Junki Tanaka, Zaihong Yang, Stefan Typel et al.
Science 371, 260 (2021)
Quenching of single-particle strength from direct reactions with stable and rare-isotope beams
T. Aumann, C. Barbieri, D. Bazin et al.
Prog. Part. Nucl. Phys. 118, 103847 (2021)
Probing the Symmetry Energy with the Spectral Pion Ratio
J. Estee, W. G. Lynch, C. Y. Tsang et al.
Phys. Rev. Lett 126, 162701 (2021)
Pairing Forces Govern Population of Doubly Magic Ca54 from Direct Reactions
F. Browne, S. Chen, P. Doornenbal et al.
Phys. Rev. Lett 126, 252501 (2021)
Rapidity distributions of Z = 1 isotopes and the nuclear symmetry energy from Sn+Sn collisions with radioactive beams at 270 MeV/nucleon
M. Kaneko, T. Murakami, T. Isobe et al.
Phys. Lett. B 822, 136681 (2021)
First spectroscopic study of 51Ar by the (p,2p) reaction
M.M. Juhász, Z. Elekes, D. Sohler et al.
Phys. Lett. B 814, 136108 (2021)
Symmetry energy investigation with pion production from Sn+Sn systems
G. Jhang, J. Estee, J. Barney et al.
Phys. Lett. B 813, 136016 (2021)
Spectroscopy of 33Mg with knockout reactions
D. Bazin, N. Aoi, H. Baba et al.
Phys. Rev. C 103, 064318 (2021)
Neutron-neutron scattering length from the 6He(p,p alpha)nn reaction
Matthias Göbel, Thomas Aumann, Carlos A. Bertulani et al.
Phys. Rev. C 104, 024001 (2021)
Fission-fragment yields and prompt-neutron multiplicity for Coulomb-induced fission of 234,235U and 237,238Np
J.-F. Martin, J. Taieb, L. Audouin et al.
Phys. Rev. C 104, 044602 (2021)
Quasi-free scattering in inverse kinematics as a tool to unveil the structure of nuclei
V. Panin, T. Aumann, C. A. Bertulani
Eur. Phys. J. A 57, 103 (2021)
NeuLAND: The high-resolution neutron time-of-flight spectrometer for R3B at FAIR
K. Boretzky, I. Gašparić, M.Heil et al.
Nucl. Inst. Meth. A 1014, 165701 (2021)
Indirect methods in nuclear astrophysics with relativistic radioactive beams
Thomas Aumann and Carlos A. Bertulani
Prog. Nucl. Part. Phys., 103753 (2020)
Halo Structure of the Neutron-Dripline Nucleus 19B
K. J. Cook, T. Nakamura, Y. Kondo et al.
Phys. Rev. Lett. 124, 212503 (2020)
Extending the Southern Shore of the Island of Inversion to 28F
A. Revel, O. Sorlin, F.M. Marqués et al.
Phys. Rev. Lett. 124, 152502 (2020)
Fragmentation of Single-Particle Strength around the Doubly Magic Nucleus 132Sn and the Position of the 0f5/2 Proton-Hole State in 131In
V. Vaquero, A. Jungclaus, T. Aumann et al.
Phys. Rev. Lett. 124, 022501 (2020)
Probing the Z = 6 spin-orbit shell gap with (p,2p) quasi-free scattering reactions
I. Syndikus, M. Petri, A.O. Macchiavelli, S. Paschalis, C.A. Bertulani, T. Aumann et al.
Phys. Lett. B 809, 135748 (2020)
Systematic reduction of the proton-removal cross section in neutron-rich medium-mass nuclei
J. Díaz-Cortés, J. Benlliure, J.L. Rodríguez-Sánchez, H. Álvarez-Pol, T. Aumann et al.
Phys Lett B 811, 135962 (2020)
Study of Δ excitations in medium-mass nuclei with peripheral heavy ion charge-exchange reactions
J. L. Rodríguez-Sánchez et al.
Phys. Lett. B 807, 135565 (2020)
Restoration of the natural E(1/2) – E(3/2) energy splitting in odd-K isotopes towards N = 40
Y. L. Sun, A. Obertelli, P. Doornenbal et al.
Phys. Lett. B 802, 135215 (2020)
Shell evolution of N = 40 isotones towards 60Ca: First spectroscopy of 62Ti
M. L. Cortes, W. Rodriguez, P. Doornenbal et al.
Phys. Lett. B 800, 135071 (2020)
Quasifree Neutron Knockout from 54 Ca Corroborates Arising N = 34 Neutron Magic Number
S. Chen, J. Lee, P. Doornenbal et al.
Phys. Rev. Lett. 123, 142501 (2019)
How Robust is the N = 34 Subshell Closure? First Spectroscopy of 52Ar
H. N. Liu, A. Obertelli et. al.
Phys. Rev. Lett. 122, 072502 (2019)
Approaching the Gamow Window with Stored Ions: Direct Measurement of 124Xe(p,γ) in the ESR Storage Ring
J. Glorius et al.
Phys. Rev. Lett. 122, 092701 (2019)
Quasi-free proton knockout from 12C on carbon target at 398 MeV/u
V. Panin, M.Holl, J.T.Taylor et al.
Phys. Lett. B 797, 134802 (2019)
Quasi-free neutron and proton knockout reactions from light nuclei in a wide neutron-to-proton asymmetry range
M. Holl, V. Panin, H. Alvarez-Pol, L. Atar, T. Aumann et al.
Phys. Lett. B 795, 682 (2019)
Spectroscopy of strongly deformed 32Ne by proton knockout reactions
I. Murray, M. MacCormick, D. Bazin et al.
Phys. Rev. C 99, 011302 (2019)
Low-energy dipole response of exotic nuclei
Thomas Aumann
Eur. Phys. J. A 55, 234 (2019)
Study of the reaction mechanisms of 136Xe + p and 136Xe + 12C at 1 A GeV with inverse kinematics and large-acceptance detectors
T. Gorbinet, O. Yordanov, J.-E. Ducret, T. Aumann et. al.
Eur. Phys. J. A 55, 11 (2019)
First Observation of 20B and 21B
S. Leblond, F. M. Marqués et al.
Phys. Rev. Lett. 121, 262502 (2018)
Strong Neutron Pairing in core +4n Nuclei
A. Revel, F. M. Marqués, O. Sorlin et al.
Phys. Rev. Lett. 120, 152504 (2018)
Quasifree (p,2p) Reactions on Oxygen Isotopes: Observation of Isospin Independence of the Reduced Single-Particle Strength
L. Atar et al.
Phys. Rev. Lett. 120, 052501 (2018)
Maris polarization in neutron-rich nuclei
Shubchintak, C. A. Bertulani, T. Aumann
Phys. Lett. B 778, 30-34 (2018)
Low-lying dipole response in the unstable 70Ni nucleus
O. Wieland et al.
Phys. Rev. C 98, 064313 (2018)
Structure of 13Be studied in proton knockout from 14B
G. Ribeiro, E. Nácher et. al.
Phys. Rev. C 98, 024603 (2018)
Comparison of electromagnetic and nuclear dissociation of 17Ne
F. Wamers et al.
Phys. Rev. C 97, 024311 (2018)
Quasifree (p,pN) scattering of light neutron-rich nuclei near N=14
P. Diaz Fernandez, H. Alvarez-Pol, R. Crespo et al.
Phys. Rev. C 97, 024311 (2018)
Photon-flux determination by the Poisson-fitting technique with quenching corrections
H. Utsunomiya, T. Watanabe et al.
Nucl. Instr. Meth. A 896, 103 (2018)
Experiments on the Competitive Double-Gamma (γγ/γ) Decay
N. Pietralla, and H. Scheit
J. Phys. 1056, 17 (2018)
Peeling Off Neutron Skins from Neutron-Rich Nuclei: Constraints on the Symmetry Energy from Neutron-Removal Cross Sections
T. Aumann, C. A. Bertulani, F. Schindler, and S. Typel
Phys. Rev. Lett. 119, 262501 (2017)
Intruder configurations in the ground state of 30Ne
H.N. Liua, J. Lee et al.
Phys. Lett. B 767 58-62 (2017)
Observation of isoscalar and isovector dipole excitations in neutron-rich 20O
N. Nakatsuka, H. Baba et al.
Phys. Lett. B 768 387-392 (2017)
Single-neutron knockout from 20C and the structure of 19C
J.W Hwang, S. Kim, Y.Satou, N. A. Orr et al.
Phys. Lett. B 769 503-508 (2017)
Determination of the neutron-capture rate of 17C for r-process nucleosynthesis
M. Heine et al.
Phys. Rev. C 95, 014613 (2017)
In-beam γ-ray spectroscopy of 35Mg via knockout reactions at intermediate energies
S. Momiyama, P. Doornenbal, H. Scheit et al
Phys. Rev. C 95, 041301 (2017)
Knockout and fragmentation reactions using a broad range of tin isotopes
J. L. Rodríguez-Sánchez, J. Benlliure, C. A. Bertulani, J. Vargas et al.
Phys. Rev. C 96, 034303 (2017)
Low-Z shore of the “island of inversion” and the reduced neutron magicity toward 28O
P. Doornenbal, H. Scheit et al.
Phys. Rev. C 96, 034328(2017)
Nuclear-matter radius studies from 58Ni(α,α) experiments at the GSI Experimental Sorage Ring with the EXL facility
J. C. Zamora et al.
Phys. Rev. C 96, 034617 (2017)
Ground-state configuration of neutron-rich 35Al via Coulomb breakup
S. Chakraborty et al.
Phys. Rev. C 96, 034617 (2017)
Effective proton-neutron interaction near the drip line from unbound states in 25,26F
M. Vandebrouck, A. Lepailleur, O. Sorlin, T. Aumann et al.
Phys. Rev. C 96, 054305 (2017)
Neutron radioactivity—Lifetime measurements of neutron-unbound states
J. Kahlbow, C. Caesar, T. Aumann, V. Panin, S. Paschalis, H. Scheit, H. Simon
Nucl. Inst. Meth., A 866, 265 (2017)
Coulomb breakup of neutron-rich 29,30Na near the island of inversion
A. Rahaman et al.
J. Phys. G 44, 045101 (2017)
Nucleus 26O: A Barely Unbound System beyond the Drip Line
Y. Kondo, T. Nakamura, et al.
Phys. Rev. Lett. 116, 102503 (2016)
Interaction cross section study of the two-neutron halo nucleus 22C
Y. Togano, T. Nakamura, Y. Kondo, et al.
Phys. Lett. B 761, 412 (2016)
Exclusive measurements of quasi-free proton scattering reactions in inverse and complete kinematics
V. Panin, J. T. Taylor, S. Paschalis, F. Wamers, et al.
Phys. Lett. B 753, 204 (2016)
Dynamical coupling of pygmy and giant resonances in relativistic Coulomb excitation
N. Brady, T. Aumann, C. Bertulani, J. Thomas
Phys. Lett. B 757, 553 (2016)
The decay patter of the Pygmy Dipole Resonance of 140Ce
B. Löher, D. Savran, T. Aumann, et al.
Phys. Lett. B 756, 72 (2016)
Coulomb and nuclear excitations of narrow resonances in 17Ne
J. Marganiec, F. Wamers, et al.
Phys. Lett. B 759, 200 (2016)
First measurement of isoscalar giant resonances in a stored-beam experiment
J. C. Zamora, et al.
Phys. Lett. B 763, 16 (2016)
Results of the ASY-EOS experiment at GSI: The symmetry energy at suprasaturation density
P. Russotto, S. Gannon, S.Kupny, P. Lasko, et al.
Phys. Rev C 94, 034608 (2016)
Direct experimental evidence for a multiparticle-hole ground state configuration of deformed 33Mg
U. Datta, A. Rahaman, et al.
Phys. Rev. C 94, 034304 (2016)
Coulomb dissociation of 27P at 500 MeV/u
J. Marganiec, S. Beceiro Novo, S. Typel, C. Langer, C. Wimmer, et al.
Phys. Rev. C 93, 045811 (2016)
Coulomb dissociation of 20,21N
M. Röder, et al.
Phys. Rev. C 93, 065807 (2016)
Decay of quadrupole-octupole 1- states in 40Ca and 140Ce
V. Derya, N. Tsoneva, et al.
Phys. Rev. C 93, 034311 (2016)
Systematic investigation of projectile fragmentation using beams of unstable B and C isotopes
R. Thies, A. Heinz, et al.
Phys. Rev. C 93, 054601 (2016)
Measurement of fragmentation cross sections of 12C ions on a thin gold target wir the FIRST apparatus
M. Toppi, et al.
Phys. Rev. C 93, 064601 (2016)
Mapping the deformation in the “island of inversion”: Inelastic scattering of 30Ne and 36Mg at intermediate energies
P. Doornenbal, H. Scheit, et al.
Phys. Rev. C 93, 044306 (2016)
Asymmetry dependence of reduction factors from single-nucleon knockout of 30Ne at ∼ 230 MeV/nucleon
J. Lee, et al
Prog. Theo. Exp. Phys. 083D01 (2016)
Nuclear astrophysics with radioactive ions at FAIR
R Reifarth, et al.
J. Phys. 665, 012044 (2016)
Observation of the competitive double-gamma nuclear decay
C. Walz, H. Scheit, N. Pietralla, T. Aumann, R. Lefol and V. Yu. Ponomarev
Nature 526, 406-409 (2015)
Hypernuclear production cross section in the reaction of 6Li+12C at 2AGeV
C. Rappold, T. R. Saito, et al.
Phys. Lett. B 747, 129 (2015)
First measurement of the 96Ru(p,gamma)97Rh cross section for the p process with a storage ring
B. Mei, T.Aumann, S. Bishop, et al.
Phys. Rev. C 92, 035803 (2015)
Relativistic Coulomb exitation in Mg 32 near 200 MeV/nucleon with a thick target
K. Li, Y. Ye, T. Motobayashi, H. Scheit, P. Doornenbal, S.Taeuchi, et al.
Phys. Rev. C 92, 014608 (2015)
Decay pattern of the Pygmy Dipole Reonance in 140Ce
J. Isaak, B. Löher, D. Savran, T. Aumann, et al.
Eur. Phys. J A 93, 01048 (2015)
Studies of continuum states in 16Ne using three-body correlation
J. Marganiec, F. Wamers, F. Aksouh, Yu. Aksyutina, et al.
Eur. Phys. J. A 51, 9 (2015)
Studies on fission with ALADIN
J. Martin, J. Taieb, et al.
Eur. Phys. J. A 51, 174(2015)
First Experimental Constraint on the Fe59(n,gamma)Fe60 Reaction Cross Section at Astrophysical Energies via the Coulomb Dissociation of Fe60
E. Uberseder, T. Adachi, T. Aumann, et al.
Phys. Rev. Lett. 112, 211101 (2014)
First Observation of the Unbound Nucleus Ne15
F. Wamers, J. Marganiec, F. Aksouh, et al.
Phys. Rev. Lett. 112, 132502 (2014)
Thermonuclear reaction S30(p,gamma)Cl31 studied via Coulomb breakup of Cl31
C. Langer, O. Lepyoshkina, Y. Aksyutina, et al.
Phys. Rev.C 89, 35806 (2014)
Shell and shape evolution at N=28: The Mg40 ground state
H. L. Crawford, P. Fallon, A. O. Macchiavelli, R. M. Clark, et al.
Phys. Rev. C 89, 041303 (2014)
Efficiency determination of resistive plate chambers for fast Performance analysis for the CALIFA Barrel calorimeter of the R3B experiment
H. Alvarez-Pol, N. Ashwood, T. Aumann, et al.
Nucl. Instr. Meth. 767, 453 (2014)
Beyond the Neutron Drip-Line
T, Aumann, H. Simon
Nucl. Phys. News 24, 2 (2014)
Rotational level structure of sodium isotopes inside the “island of inversion
P. Doornenbal, H. Scheit, S. Takeuchi, Y. Utsuno, et al.
Prog. Theo. Exp. Phys. 053D01 (2014)
Efficiency determination of reisitive plate chambers for fast quasi-monoenergetic neutrons
M. Röder, Z. Elekes, T. Aumann, et al.
Eur. Phys. J. A 50, 112 (2014)
Study of the Be14 Continuum: Identification and Structure of its Second 2+ State
Y. Aksyutina, T. Aumann, K. Boretzky, M. J. G. Borge, et al.
Phys. Rev. Lett. 111, 242501 (2013)
Measurement of the Dipole Polarizability of the Unstable Neutron-Rich Nucleus Ni68
D. Rossi, , P. Adrich1, F. Aksouh1,†, H. Alvarez-Pol, et al.
Phys. Rev. Lett. 111, 242503 (2013)
In-Beam γ-Ray Spectroscopy of Mg34,36,38: Merging the N=20 and N=28 Shell Quenching
P. Doornenbal, H. Scheit, S. Takeuchi, N. Aoi, et al.
Phys. Rev. Lett. 111, 212502 (2013)
Momentum profile analysis in one-neutron knockout from Borromean nuclei
Y. Aksyutina, T. Aumann, K. Boretzky, M.J.G. Borge, et al.
Phys. Lett. B 718, 1309 (2013)
Is there a low-lying 1(-) state in He-10?
L. V. Chulkov, T. Aumann, B. Jonson, T. Nilsson, H. Simon
Phys. Lett. B 720, 344 (2013)
Beyond the neutron drip line: The unbound oxygen isotopes 25-O and 26-O
C. Caesar, J. Simonis, T. Adachi, Y. Aksyutina, et al.
Phys. Rev. C 88, 34313 (2013)
Search for evidence of (3)(Lambda)n by observing d + pi(-) and t + pi(-) final states in the reaction of Li-6+C-12 at 2A GeV
C. Rappold, E. Kim, T. R. Saito, O. Bertini, et al.
Phys. Rev. C 88, 41001 (2013)
Decay pattern of the pygmy dipole resonance in Ni-60
M. Scheck, V. Y. Ponomarev, T. Aumann, J. Beller, et al.
Phys. Rev. C 87, 51304 (2013)
Structure of the unbound nucleus 13Be: One-neutron knockout reaction data from 14Be analyzed in a holistic approach
Y. Aksyutina, T. Aumann, K. Boretzky, M. J. G. Borge, et al.
Phys. Rev. C 87, 64316 (2013)
Collectivity evolution in the neutron-rich Pd isotopes toward the N=82 shell closure
H. Wang, N. Aoi, S. Takeuchi, M. Matsushita, et al.
Phys. Rev. C 88, 054318 (2013)
Photoresponse of 60Ni below 10-MeV excitation energy: Evolution of dipole resonances in fp-shell nuclei near N=Z
M. Scheck, V. Y. Ponomarev, M. Fritzsche, J. Joubert, T. Aumann, et al.
Phys. Rev. C 88, 44304 (2013)
Quasifree (p,2p) and (p,pn) reactions with unstable nuclei
T. Aumann, C. A. Bertulani, J. Ryckebusch
Phys. Rev. C 88, 64610 (2013)
The electric dipole response of exotic nuclei
T. Aumann, T. Nakamura
Physica Scripta 152, 14012 (2013)