Logarithmically divergent friction on ultrarelativistic bubble walls
Logarithmically divergent friction on ultrarelativistic bubble walls
复制标题
超相对论气泡壁上的对数发散摩擦力
DOI:
10.1088/1475-7516/2023/10/052
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发表时间:
2023
影响因子:
6.4
通讯作者:
Ai W
中科院分区:
文献类型:
--
作者:
Ai W
We calculate the friction experienced by ultrarelativistic bubble walls resulting from the 1→ 2 light-to-heavy transition process, with finite-wall-width effects fully taken into account. In this process, the light particle is excited from the order-parameter scalar field, while the two heavy particles are excitations of a dark matter scalar field. Unlike earlier estimates suggesting a friction scaling as γ w 0, where γ w represents the Lorentz factor of the wall velocity, our more precise numerical analysis reveals a logarithmic dependence of the friction on γ w. We offer a numerical fit to capture this frictional pressure accurately. Our analysis verifies that the friction stemming from the 1→ 2 light-to-heavy transition is typically much smaller than the friction from the 1→ 1 transmission of the dark matter particles.
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影响因子:
5
作者:
Ai W
通讯作者:
Ai W
影响因子:
5.4
作者:
Zi-Liang Wang;Wen-Yuan Ai
通讯作者:
Zi-Liang Wang;Wen-Yuan Ai
DOI:
--
发表时间:
2009
期刊:
影响因子:
--
作者:
A. Mégevand;A. Sánchez
通讯作者:
A. Sánchez
DOI:
--
发表时间:
2009
期刊:
影响因子:
--
作者:
A. Mégevand;A. Sánchez
通讯作者:
A. Sánchez
DOI:
--
发表时间:
1994
期刊:
Physical Review D, Particles and fields
影响因子:
--
作者:
A. Heckler
通讯作者:
A. Heckler