Author: Telnov, V.I.
Paper Title Page
MOPAB033 Monochromatization of e+e− Colliders with a Large Crossing Angle 152
 
  • V.I. Telnov
    BINP SB RAS, Novosibirsk, Russia
  
  The rel­a­tive cen­ter-of-mass en­ergy spread at e+e− col­lid­ers is much larger than the widths of nar­row res­o­nances, which greatly low­ers the res­o­nance pro­duc­tion rates of J/Psi, Psi-prime, Up­sililon(nS), n=1-3. Thus, a sig­nif­i­cant re­duc­tion of the cen­ter-of-mass en­ergy spread would open up great op­por­tu­ni­ties in the search for new physics in rare de­cays of nar­row res­o­nances, the search for new nar­row states with small par­tial e+e− width. The ex­ist­ing mono­chrom­a­ti­za­tion scheme is only suit­able for head-on col­li­sions, while e+e− col­lid­ers with cross­ing an­gles (the so-called Crab Waist col­li­sion scheme) can pro­vide much higher lu­mi­nos­ity. In this re­port, a new mono­chrom­a­ti­za­tion method for col­lid­ers with a large cross­ing angle is dis­cussed*. The con­tri­bu­tion of the beam en­ergy spread to the spread of the cen­ter-of-mass en­ergy is can­celed by in­tro­duc­ing an ap­pro­pri­ate en­ergy-an­gle cor­re­la­tion at the in­ter­ac­tion point; the rel­a­tive RMS mass spread of about (3-5)10-6 seems pos­si­ble. Lim­i­ta­tions of the pro­posed method are also con­sid­ered. This mono­chrom­a­ti­za­tion scheme is very at­trac­tive for the Up­silon-me­son re­gion and below.
* V.I.Telnov, Monochromatization of e+e− colliders with a large crossing angle, arXiv:2008.13668 		 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-MOPAB033  
About • paper received ※ 22 May 2021       paper accepted ※ 26 May 2021       issue date ※ 31 August 2021  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)