Aleksandra Skruch
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Aleksandra Skruch has a total of 66 co-authors. Here are the top co-authors by number of shared publications:
- Agnieszka Korgul
University of Warsaw
3 shared publications - Aleksander Augustyn
National Centre for Nuclear Research
3 shared publications - Chiara Mazzocchi
Faculty of Physics, University of Warsaw
3 shared publications - Ian Cox
University of Tennessee
3 shared publications - James Mitchell Allmond
Oak Ridge National Laboratory
3 shared publications - Krzysztof Piotr Rykaczewski
Oak Ridge National Laboratory
3 shared publications
Latest Publications
- 27 May 2026
- Published by Springer Nature in Nature
- Vol. 654 (8117) , 52-56
Direct observation of the superallowed α-decay of 104Te
The radioactivity of the α particle is among the most compelling evidence for the existence of cluster structures in atomic nuclei. During the decay process, a pre-existing α particle tunnels through the potential barrier formed by the residual nucleus1,2. The degree of preformation of the α particle, a strongly bound system of two protons and two neutrons, is extracted from the data by dividing the α-decay probability by the barrier penetrability for a given particle energy. The preformation probability changes rapidly near nuclear shell closures, which is direct evidence that clustering is connected to nuclear structure3. Enhanced preformation was observed in the lightest α-particle emitters, spherical tellurium and xenon isotopes decaying to magic isotopes of tin. Here we show the most extreme case of α-particle preformation from the measurement of the decay of tellurium-104 (104Te). With a half-life of , 104Te is the fastest ground-state α-emitting nucleus known so far. The deduced preformation demonstrates that the enhancement is greater for 104Te than for any other nucleus. One nuclear model that can explain our observation postulates that the α particle can exist only in the low-nuclear-matter-density regions on the surface of the nucleus. The uniquely high preformation for 104Te is attributed to its relation to doubly magic tin-100 (100Sn), creating conditions conducive to form an α particle.- 27 May 2026
- Published by Springer Nature in Nature
- Vol. 654 (8117) , 52-56
Direct observation of the superallowed α-decay of 104Te
The radioactivity of the α particle is among the most compelling evidence for the existence of cluster structures in atomic nuclei. During the decay process, a pre-existing α particle tunnels through the potential barrier formed by the residual nucleus1,2. The degree of preformation of the α particle, a strongly bound system of two protons and two neutrons, is extracted from the data by dividing the α-decay probability by the barrier penetrability for a given particle energy. The preformation probability changes rapidly near nuclear shell closures, which is direct evidence that clustering is connected to nuclear structure3. Enhanced preformation was observed in the lightest α-particle emitters, spherical tellurium and xenon isotopes decaying to magic isotopes of tin. Here we show the most extreme case of α-particle preformation from the measurement of the decay of tellurium-104 (104Te). With a half-life of , 104Te is the fastest ground-state α-emitting nucleus known so far. The deduced preformation demonstrates that the enhancement is greater for 104Te than for any other nucleus. One nuclear model that can explain our observation postulates that the α particle can exist only in the low-nuclear-matter-density regions on the surface of the nucleus. The uniquely high preformation for 104Te is attributed to its relation to doubly magic tin-100 (100Sn), creating conditions conducive to form an α particle.- Open Access
- 17 November 2025
- Published by Springer Nature in Research Square
Direct observation of the superallowed α decay of 104Te
Alpha particle radioactivity is one of the most striking evidence for the existence of cluster structures in atomic nuclei. During the decay process, a preexisting α particle tunnels through the potential barrier formed by the residual nucleus [1,2]. The degree of preformation of the α particle, a strongly bound system of two protons and two neutrons, is extracted from the data by dividing the α-decay probability by the barrier penetrability for a given particle energy. The preformation probability changes rapidly near nuclear shell closures, which is direct evidence that clustering is connected to nuclear structure [3]. Enhanced preformation was observed in the lightest α-particle emitters, spherical tellurium and xenon isotopes decaying to magic isotopes of tin. Here, we show the most extreme case of α-particle preformation from the measurement of the decay of tellurium-104. With a half-life of 7.2 +2.3 -1.5 nanoseconds, tellurium-104 is the fastest ground state α-emitting nucleus known to date. The deduced preformation demonstrates that the enhancement is greater for tellurium-104 than for any other nucleus. One nuclear model that can explain our observation postulates that the α particle can exist only in the low nuclear matter density regions on the surface of the nucleus. The uniquely high preformation for tellurium-104 is attributed to its relation to doubly-magic tin-100, creating conditions conducive to form an α particle.
- 17 November 2025
- Published by Springer Nature in Research Square
Open AccessDirect observation of the superallowed α decay of 104Te
Alpha particle radioactivity is one of the most striking evidence for the existence of cluster structures in atomic nuclei. During the decay process, a preexisting α particle tunnels through the potential barrier formed by the residual nucleus [1,2]. The degree of preformation of the α particle, a strongly bound system of two protons and two neutrons, is extracted from the data by dividing the α-decay probability by the barrier penetrability for a given particle energy. The preformation probability changes rapidly near nuclear shell closures, which is direct evidence that clustering is connected to nuclear structure [3]. Enhanced preformation was observed in the lightest α-particle emitters, spherical tellurium and xenon isotopes decaying to magic isotopes of tin. Here, we show the most extreme case of α-particle preformation from the measurement of the decay of tellurium-104. With a half-life of 7.2 +2.3 -1.5 nanoseconds, tellurium-104 is the fastest ground state α-emitting nucleus known to date. The deduced preformation demonstrates that the enhancement is greater for tellurium-104 than for any other nucleus. One nuclear model that can explain our observation postulates that the α particle can exist only in the low nuclear matter density regions on the surface of the nucleus. The uniquely high preformation for tellurium-104 is attributed to its relation to doubly-magic tin-100, creating conditions conducive to form an α particle.