ACCURATE TIME-DEPENDENT WAVE PACKET STUDY OF THE H++LiH REACTION AT EARLY UNIVERSE CONDITIONS
Yazarlar (6)
Prof. Dr. Emine TANIŞ
Kırşehir Ahi Evran Üniversitesi, Türkiye
Fırat Üniversitesi, Türkiye
| Makale Türü |
Özgün Makale
(SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
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| Dergi Adı | The Astrophysical Journal | ||
| Dergi ISSN | 0004-637X Wos Dergi Scopus Dergi | ||
| Dergi Tarandığı Indeksler | SCI-Expanded | ||
| Makale Dili | İngilizce | Basım Tarihi | 10-2012 |
| Cilt / Sayı / Sayfa | 759 / 1 / 31– | DOI | 10.1088/0004-637X/759/1/31 |
| Makale Linki | http://dx.doi.org/10.1088/0004-637x/759/1/31 | ||
| Özet |
| The dynamics and kinetics of the H++ LiH reaction have been studied using a quantum reactive time-dependent wave packet (TDWP) coupled-channel quantum mechanical method on an ab initio potential energy surface at conditions of the early universe. The total reaction probabilities for the H++ LiH (v= 0, j= 0)→ H+ 2+ Li process have been calculated from 5× 10− 3 eV up to 1 eV for total angular momenta J from 0 to 110. Using a Langevin model, integral cross sections have been calculated in that range of collision energies and extrapolated for energies below 5× 10− 3 eV. The calculated rate constants are found to be nearly independent of temperature in the 10–1000 K interval with a value of≈ 10− 9 cm 3 s− 1, which is in good agreement with estimates used in evolutionary models of the early universe lithium chemistry. |
| Anahtar Kelimeler |
BM Sürdürülebilir Kalkınma Amaçları
| Atıf Sayıları | |
| Google Scholar | 23 |