Ground state energy and width of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mmultiscripts><mml:mi mathvariant="normal">He</mml:mi><mml:mprescripts /><mml:none /><mml:mrow><mml:mn>7</mml:mn></mml:mrow></mml:mmultiscripts></mml:math>from<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mmultiscripts><mml:mi mathvariant="normal">Li</mml:mi><mml:mprescripts /><mml:none /><mml:mrow><mml:mn>8</mml:mn></mml:mrow></mml:mmultiscripts></mml:math>proton

Denby, D.; DeYoung, Paul; Baumann, T.; Bazin, D.; Breitbach, E.; Brown, J.; Frank, N.; Gade, A.; Hall, C.C.; Hinnefeld, J.; Hoffman, C. R.; Howes, Ruth; Jenson, R.A.; Luther, B.; Mosby, S.; Olson, C. W.; Peters, William A.; Schiller, A.; Spyrou, A.; Thoennessen, M.

doi:10.1103/physrevc.78.044303

Cited by 24 publications

(33 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Its ground state was identified in the 7 Li(t, 3 He) charge-exchange reaction [1,2] as a J π = 3/2 − resonance with a width of 0.16(3) MeV (full width at half maximum; FWHM) at 0.44(3) MeV above the 6 He +n threshold. This observation was further confirmed by other experiments [3][4][5][6][7][8][9][10], although quantitative values slightly differ, as shown in Fig. 1.…”

Section: Introductionsupporting

confidence: 84%

“…Three other experiments showed a resonance with an excitation energy in good agreement with Ref. [13]: the 9 Be( 15 N , 17 F) 7 He transfer reaction [3], 8 He(p,d) 7 He at 15.6 MeV/nucleon [6] and (d, 3 He) reaction with 8 Li beam of 76 MeV [12]. In the latter two measurements the decay of the 7 He 5/2 − state into α + 3n was also confirmed.…”

Section: Introductionsupporting

confidence: 73%

“…Meister et al [4] studied 7 He with a beam of 227 MeV/nucleon 8 He on a carbon target. Selecting the one-neutron-knockout channel, they observed a clear deviation of the 6 He +n invariant mass spectrum from the expected R-matrix lineshape.…”

Section: Introductionmentioning

confidence: 99%

“…1. We report the results of a new measurement, performed by using the 9 Be( 6 He , 7 He) 8 Be reaction. This reaction is characterized by very clear identification of the channel of interest due to the 8 Be decay.…”

Section: Introductionmentioning

confidence: 99%

“…We report the results of a new measurement, performed by using the 9 Be( 6 He , 7 He) 8 Be reaction. This reaction is characterized by very clear identification of the channel of interest due to the 8 Be decay. Indeed, the ground state of 8 Be decays exclusively into two α particles with a very small breakup energy (Q = 0.092 MeV).…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Spectroscopy ofHe7using theBe9(He
Renzi
¹
,
Raabe
²
,
Randisi
³

et al. 2016
Phys. Rev. C
5
0
1
0
View full text Add to dashboard Cite

The unbound nucleus 7 He has been investigated via the reaction of a 16.8 MeV 6 He radioactive ion beam on a 9 Be target. The measurement of the outgoing 8 Be through its well characterized two-α decay permitted the energy of the 6 He +n system to be reconstructed. Through comparison with a complete Monte Carlo simulation incorporating R-matrix lineshapes, the 7 He ground state was determined to lie 0.380(28) MeV above the neutron decay with a width of = 0.179(21) MeV. A neutron spectroscopic factor SF = 0.608(18) was extracted in agreement with the most recent calculations. Significant evidence was found for a broad resonance lying at 2.6(2) MeV above threshold with a FWHM = 2.3(3) MeV. These parameters are fully consistent with the properties of 1/2 − state reported by Wuosmaa et al. [Phys. Rev. C 72, 061301(R) (2005)]. Limits were also put on the presence of narrow resonances seen in earlier experiments.

show abstract