Rotational character of the C-12 spectrum investigated through inelastic cross sections via photon emission

TY - GEN

T1 - Rotational character of the C-12 spectrum investigated through inelastic cross sections via photon emission

AU - Garrido, E.

AU - Jensen, Aksel Stenholm

AU - Fedorov, D. V.

PY - 2016

Y1 - 2016

N2 - In this work the bremsstrahlung and photon dissociation cross sections for transitions between 0 +, 2 +, and 4 + states in 12C are computed. The nucleus is described within the three-alpha model, and the wave functions are computed by means of the hyperspherical adiabatic expansion method. The continuum states are discretized by imposing a box boundary condition. The transition strengths are obtained from the cross sections, and compared to schematic rotational model predictions. The computed results strongly suggest that the two lowest bands are made, respectively, by the states with angular momentum and parity {0 1 +, 2 1 +, 4 2 +} and {0 2 +, 2 2 +, 4 1 +}. The transitions between the states in the first band are consistent with the rotational pattern corresponding to three alphas in an equilateral triangular structure. For the second band, the transitions are also consistent with a rotational pattern, but with the three alphas in an aligned distribution.

AB - In this work the bremsstrahlung and photon dissociation cross sections for transitions between 0 +, 2 +, and 4 + states in 12C are computed. The nucleus is described within the three-alpha model, and the wave functions are computed by means of the hyperspherical adiabatic expansion method. The continuum states are discretized by imposing a box boundary condition. The transition strengths are obtained from the cross sections, and compared to schematic rotational model predictions. The computed results strongly suggest that the two lowest bands are made, respectively, by the states with angular momentum and parity {0 1 +, 2 1 +, 4 2 +} and {0 2 +, 2 2 +, 4 1 +}. The transitions between the states in the first band are consistent with the rotational pattern corresponding to three alphas in an equilateral triangular structure. For the second band, the transitions are also consistent with a rotational pattern, but with the three alphas in an aligned distribution.

UR - http://www.scopus.com/inward/record.url?scp=84964681927&partnerID=8YFLogxK

U2 - 10.1051/epjconf/201611306005

DO - 10.1051/epjconf/201611306005

M3 - Conference article

SN - 2100-014X

VL - 113

JO - E P J Web of Conferences

JF - E P J Web of Conferences

M1 - 06005

T2 - 21st International Conference on Few-Body Problems in Physics (FB21)

Y2 - 18 May 2015 through 22 May 2015

ER -