Pregled bibliografske jedinice broj: 1105657
Ground-state binding energy of from high-resolution decay-pion spectroscopy
Ground-state binding energy of from high-resolution decay-pion spectroscopy // Nuclear physics. A, 954 (2016), 149-160 doi:10.1016/j.nuclphysa.2016.03.015 (međunarodna recenzija, članak, znanstveni)
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Naslov
Ground-state binding energy of from high-resolution
decay-pion spectroscopy
Autori
Schulz, F. ; Achenbach, P. ; Aulenbacher, S. ; Bericic, J. ; Bleser, S. ; Boehm, R. ; Bosnar, D. ; Correa, L. ; Distler, M. O. ; Esser, A. ; Fonvieille, H. ; Friscic, I. ; Fujii, Y. ; Fujita, M. ; Gogami, T. ; Kanda, H. ; Kaneta, M. ; Kegel, S. ; Kohl, Y. ; Kusaka, W. ; Margaryan, A. ; Merkel, H. ; Mihovilovic, M. ; Mueller, U. ; Nagao, S. ; Nakamura, S. N. ; Pochodzalla, J. ; Lorente, A. Sanchez ; Schlimme, B. S. ; Schoth, M. ; Sfienti, C. ; Sirca, S. ; Steinen, M. ; Takahashi, Y. ; Tang, L. ; Thiel, M. ; Tsukada, K. ; Tyukin, A. ; Weber, A.
Kolaboracija
A1 Collaboration
Izvornik
Nuclear physics. A (0375-9474) 954
(2016);
149-160
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
Hypernuclear mass spectroscopy ; Mesonic weak decay ; Charge symmetry breaking
Sažetak
A systematic study on the ground state binding energy of hyperhydrogen 4 H measured at the Mainz Microtron MAMI is presented. The energy was deduced from the spectroscopy of mono-energetic pions from the two-body decays of hyperfragments, which were produced and stopped in a 9Be target. First data, taken in the year 2012 with a high resolution magnetic spectrometer, demonstrated an almost one order of magnitude higher precision than emulsion data, while being limited by systematic uncertainties. In 2014 an extended measurement campaign was performed with improved control over systematic effects, increasing the yield of hypernuclei and confirming the observation with two independent spectrometers and two targets of different thicknesses. The analysis of these data is in agreement with the previously published value for the 4 H binding energy as well as with a consistent re- analysis of the 2012 data. When compared to the 4 He binding energy from emulsion data, a large charge symmetry breaking effect in the A = 4 hypernuclear system is confirmed.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
POVEZANOST RADA
Ustanove:
Prirodoslovno-matematički fakultet, Zagreb
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus