The role of positron polarization for the inital $250$ GeV stage of the International Linear Collider
Keisuke Fujii, Christophe Grojean, Michael E. Peskin (conveners), Tim, Barklow, Yuanning Gao, Shinya Kanemura, Hyungdo Kim, Jenny List, Mihoko, Nojiri, Maxim Perelstein, Roman P\"oschl, J\"urgen Reuter, Frank Simon,, Tomohiko Tanabe, James D. Wells, Jaehoon Yu (members)
TL;DR
Positron polarization at the 250 GeV stage of the ILC enhances physics capabilities, offering distinct advantages for the collider's scientific goals.
Contribution
This paper reviews and demonstrates the significant impact and advantages of positron polarization for the initial 250 GeV stage of the ILC.
Findings
Positron polarization improves measurement precision.
It enhances sensitivity to new physics.
Positron polarization is beneficial for the collider's physics goals.
Abstract
The International Linear Collider is now proposed with a staged machine design, with the first stage at ~250 GeV and an integrated luminosity goal of 2~ab. One of the questions for the machine design is the importance of positron polarization. In this report, we review the impact of positron polarization on the physics goals of the GeV stage of the ILC and demonstrate that positron polarization has distinct advantages.
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