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arXiv · 2605.19572

Timing-Window Mechanism for Chain-Like Transients in Collisions of Radially Excited Boson Stars

Bo-Xuan Ge
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Abstract

We show that chain-like transients in head-on collisions of radially excited boson stars are controlled by the binary collision time, not by radial excitation alone. For selected \(n=2\), \(\lambda=400\) self-interacting configurations, isolated evolutions define breathing windows that serve as reference clocks. Numerical-relativity simulations show that visible chains form only when the collision time is compatible with the isolated breathing clock. A separation scan shifts the collision time relative to the same clock, confirming the timing-window mechanism. An additional fixed-separation check at \(\lambda=500\) shows the same event ordering, indicating that the observed pattern is not unique to the fiducial self-interaction strength.

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Bo-Xuan Ge. 2026-05-19. Timing-Window Mechanism for Chain-Like Transients in Collisions of Radially Excited Boson Stars. https://doi.org/10.1103/3ypj-q98d

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