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I stumbled across the following equation in a presentation about collider physics:

t_{corr}^{WV}=(t_{i}^{RV}- t_{i}^{WV}) + (TOF_{RV}- TOF_{WV}),

where t_{corr}^{WV}is the corrected time for the wrong vertex, t_{i}^{RV}is the initial time of the right vertex, t_{i}^{RV}is the initial time of the wrong vertex, TOF_{RV}is the time of flight from the right vertex, and TOF_{WV}is the time of flight from the wrong vertex.

I believe that t_{i}^{RV}is equal to zero by default, and the time of flight terms can be easily calculated from the kinematics of the collision. But I do not know what t_{i}^{WV}is.

Could someone familiar with collider physics elucidate the meaning of t_{i}^{WV}?

Thanks!

Edit: the presentation can be found at www-cdf.fnal.gov/~dcruz/DanielMasters.pptx

The equation in question is on slide 13.

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# Collider Parameters: corrected time for wrong vertex

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