Momentum distributions forBe12,14fragmentation

Halo Structure ofB14e

“…More sophisticated models suggest, however, that a n͑s 1͞2 ͒ 2 admixture is also present [4][5][6][7]. Unfortunately, a paucity of experimental data [8][9][10] has precluded the elucidation of the structure of 14 Be beyond the matter radius [11][12][13][14]. Compared to the other halo systems, the comparatively strong binding of the valence neutrons in 14 Be (S 2n 1.34 6 0.11 MeV [15,16]) combined with the n͑d 5͞2 ͒ 2 component may provide a new window on continuum excitations, including the long sought after soft-dipole resonance [17,18].…”

The ratio method: A new tool to study one-neutron halo nuclei

“…In this respect, precision measurements of nuclear radii in traps open new possibilities [5,6]. Narrow momentum distributions are also an indication of the large spatial extension of the wave functions [7,8]. While identifying a halo can be in itself a challenge, one would also like to have a better understanding of the structure of the valence orbital and its wave function, such as accomplished in (d, p) studies [9].…”

Momentum Distribution ofB15Fragments from the Breakup ofBSuzuki1, Ogawa2, Chiba3 et al. 2002Phys. Rev. Lett.461100View full textAdd to dashboardCite

“…The two-neutron removal cross section (s 22n ) and the longitudinal momentum distribution of 15 B fragments from the breakup of 17 B on 9 Be were measured at 70A MeV. The distribution in the projectile rest frame is characterized by a FWHM of 80 6 10 MeV͞c for 15 B.…”