Spin assignments of rotational bands in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mrow /><mml:mn>128</mml:mn></mml:msup></mml:math>La

Y., K.; Lu, Jingbin; Yang, Dong; Wang, Huidong; Liu, Y. Z.; Wu, Xiaofeng; Zheng, Y.; He, Chun

doi:10.1103/physrevc.86.027301

Cited by 13 publications

(32 citation statements)

References 15 publications

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“…Using different approximations of F , Eq. (2) has been used to determine T [34,35]. In the IBD analysis, ∆µ/T from the small A fragment changes very little [45,[47][48][49][50][52][53][54], which means that ∆µ/T can be canceled out in the difference between the IYRs in Eqs.…”

Section: Isobaric Ratio Difference Thermometermentioning

confidence: 99%

“…Defining the residue free energy among the isobars as ∆F ≡ 2F (A, I) − F (A, I + 2) − F (A, I − 2), T can be obtained once ∆F is known. For fragments having finite temperatures, it is proven that the residue free energy between two isobars can be replaced by that of B(A, I) [34]. A further secondary decay modification is also considered in a recent work [35].…”

Section: Isobaric Ratio Difference Thermometermentioning

confidence: 99%

“…Recently, an isobaric ratio methods have also been proposed to determine the temperature of IMFs. It shows that the primary IMFs reflect a temperature around 5 MeV [32,33], while the cold IMFs reflect much lower temperature [16,[34][35][36].…”

Section: Introductionmentioning

confidence: 99%

“…The fragments may have different temperatures in the experiments. For example, in peripheral collisions the temperatures are different [47,52], and it is also shown that temperature depends on the isospin of the reaction system [34,35,56]. In this article, in the framework of the thermodynamics model, a thermometer is proposed to extract the temperature from the IMFs via the difference between IYRs, which is improved from the IYR method [34,35].…”

Section: Introductionmentioning

confidence: 99%

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Improved thermometer for intermediate-mass fragments in heavy-ion collisions with isobaric yield ratio difference

Ding

Qiao

et al. 2015

Phys. Rev. C

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Background: Temperature is an important parameter in studying many important questions in heavy-ion collisions. A thermometer based on the isobaric yield ratio (IYR) has been proposed [Ma et al., Phys. Rev. C 86, 054611 (2012) and Ma et al., ibid., Phys. Rev. C 88, 014609 (2013)].Purpose: An improved thermometer (TIB) is proposed based on the difference between IYRs. TIB obtained from isobars in different reactions will be compared.Methods: The yields of three isobars are employed in TIB. The residual free energy of the three isobars are replaced by that of the binding energy. No secondary decay modification for odd A fragment is used in TIB. Results:The measured fragment yields in the 140A MeV 40,48 Ca + 9 Be ( 181 Ta) and 58,64 Ni + 9 Be ( 181 Ta), the 1A GeV 124,136 Xe + Pb, and the 112,124 Sn + 112,124 Sn reactions have been analyzed to obtain TIB from IMFs. TIB from most of the fragments in the 40,48 Ca and 58,64 Ni reactions is in the range of 0.6 MeV < TIB < 3.5 MeV. TIB from most of the fragments in the 124 Xe and 112,124 Sn reactions is in the range of 0.5 MeV < TIB < 2.5 MeV, while the range is 0.5 MeV < TIB < 4 MeV from most of the fragments in the 136 Xe reaction. In general, for most of the fragments TIB in the 40,48 Ca and 58,64 Ni reactions are very similar (except in the very neutron-rich fragments), and TIB from IMFs in the 124,136 Xe and 112,124 Sn reactions is also similar. A slightly dependence of TIB on A is found.Conclusions: Using the binding energy of the nucleus, TIB can be obtained without the knowledge of the free energies of fragments. In the investigated reactions, TIB from most of the IMFs is low.

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Section: Isobaric Ratio Difference Thermometermentioning

confidence: 99%

Section: Isobaric Ratio Difference Thermometermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Improved thermometer for intermediate-mass fragments in heavy-ion collisions with isobaric yield ratio difference

Ding

Qiao

et al. 2015

Phys. Rev. C

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“…The yields of fragments are significantly influenced by the pairing correlations. The pairing correlations also take important roles in the simulation of sequential decay [13,14]. The temperature effects in binding energy are usually omitted.…”

Section: Introductionmentioning

confidence: 99%

Pairing-energy coefficients of neutron-rich fragments in spallation reactions

Niu

2018

Chinese Phys. C

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The ratio of pairing-energy coefficient to temperature (ap/T ) of neutron-rich fragments produced in spallation reactions has been investigated by adopting an isobaric yield ratio method deduced in the framework of a modified Fisher model. A series of spallation reactions, 0.5A and 1A GeV 208 Pb + p, 1A GeV 238 U + p, 0.5A GeV 136 Xe + d, 0.2A, 0.5A and 1A GeV 136 Xe + p, and 56 Fe + p with incident energy ranging from 0.3A to 1.5A GeV, has been analysed. An obvious odd-even staggering is shown in the fragments with small neutron excess (I ≡ N −Z), and in the relatively small-A fragments which have large I. The values of ap/T for the fragments, with I from 0 to 36, have been found to be in a range from -4 to 4, and most values of ap/T fall in the range from -1 to 1. It is suggested that a small pairing-energy coefficient should be considered in predicting the cross sections of fragments in spallation reactions. It is also concluded that the method proposed in this article is not good for fragments with A/As > 85% (where As is the mass number of the spallation system).

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Excited Nuclear States for La-128 (Lanthanum)

Sukhoruchkin¹,

Soroko²

2015

Supplement to I/25 a-E

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Spin assignments of rotational bands in128La

Cited by 13 publications

References 15 publications

Improved thermometer for intermediate-mass fragments in heavy-ion collisions with isobaric yield ratio difference

Improved thermometer for intermediate-mass fragments in heavy-ion collisions with isobaric yield ratio difference

Pairing-energy coefficients of neutron-rich fragments in spallation reactions

Excited Nuclear States for La-128 (Lanthanum)

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