The Luminosity Reduction with Hourglass Effect and Crossing Angle in an e-p Collider

Conference · Fri May 01 04:00:00 EDT 2015

DOI:https://doi.org/10.18429/JACoW-IPAC2015-TUPTY010· OSTI ID:1968593

Zhang, Yuhong ^[1]; Peng, Yuimei ^[2]

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1. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
2. Institute of High Energy Physics, Chinese Academy of Science, Beijing, China

This paper derived the luminosity reduction caused by crossing angle and hourglass effect in an asymmetric collision. Here, we gave the general expressions of the geometrical reduction factor of luminosity for the asymmetric case caused by crossing angle and hourglass effect,for tri-Gaussian bunches colliding. We also gave it simple expression in some special cases to recover the earlier results, such as the formulas for only hour-glass effect exist and only crossing angle exist. The expressions used in e-p collider are also analysed in detail.

• Research Organization: Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Nuclear Physics (NP)
• DOE Contract Number: AC05-06OR23177
• OSTI ID: 1968593
• Report Number(s): JLAB-ACP-15-2175; DOE/OR/23177-3672
• Country of Publication: United States
• Language: English