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CERN Document Server 找到 158 笔记录  1 - 10下一个最後  跳到记录: 检索需时 0.62 秒. 
1.
Timing-based mass measurement of exotic long-lived particles at the FCC-ee / Aleksan, Roy (IRFU, Saclay) ; Perez, Emmanuel (CERN) ; Polesello, Giacomo (INFN, Pavia) ; Valle, Nicolò (INFN, Pavia)
The very high luminosity run foreseen at the $Z$-pole for the FCC-ee will allow the detection in $Z$ decays of new particles with very low couplings to the Standard Model. These particles will have measurable flight paths before they decay. [...]
arXiv:2406.05102.- 2025-01-09 - 16 p. - Published in : Eur. Phys. J. C 85 (2025) 14 Fulltext: 2406.05102 - PDF; document - PDF;
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2.
Measuring the angle $\alpha_{ds}$ of the flattest Unitary Triangle with $\overline{B}_{d}\to \phi \overline{K}^{(*)0},\overline{B}_{s}\to \phi{K}^{(*)0}$ decays / Aleksan, Roy (IRFU, Saclay) ; Oliver, Luis (IJCLab, Orsay) ; Perez, Emmanuel (CERN)
We show that the angle $\alpha_{ds}$ of the ``flattest'' unitarity triange can be directly measured using the decays $\overline{B}_{d}\to \phi \overline{K}^{(*)0}$ and $\overline{B}_{s}\to \phi{K}^{(*)0}$. [...]
arXiv:2402.09987. - 19 p.
Fulltext
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3.
CP violation and determination of the $bs$ "flat" unitarity triangle at FCCee / Aleksan, Roy (IRFU, Saclay) ; Oliver, L. (IJCLab, Orsay) ; Perez, Emmanuel (CERN)
We investigate the sensitivity with which two angles of the "flat" unitarity triangle, defined by $V_{ub}^* V_{us} + V_{cb}^* V_{cs} + V_{tb}^* V_{ts} =0$, can possibly be measured directly at FCCee. We show that the measured errors on the angle $\alpha_s = \arg(- V_{ub}^* V_{us} /V_{tb}^* V_{ts})$ and $\beta_s = \arg(-V_{tb}^* V_{ts} / V_{cb}^* V_{cs})$ should be better than $0.4^\circ$ and $0.035^\circ$, respectively. [...]
arXiv:2107.02002.- 2022-03-01 - 27 p. - Published in : Phys. Rev. D 105 (2022) 053008 Fulltext: PDF; Fulltext from publisher: PDF;
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4.
Scenarios for Circular Gamma-Gamma Higgs Factories / Aleksan, Roy (CEA, DSM, Saclay ; IRFU, Saclay) ; Apyan, Armen (Northwestern U.) ; Papaphilippou, Yannis (CERN) ; Zimmermann, Frank (CERN)
The Higgs boson can be produced directly in gamma-gamma collisions generated by laser Compton back scattering off 80-90 GeV electron or positron beams. We discuss options for realizing a gamma-gamma Higgs factory using a high-energy circular e⁺e⁻ collider, such as FCC-ee or CEPC, and/or its top-up injector ring, and compare the parameters and advantages of such a facility, including the expected performance, with those for a Higgs factory based on a recirculating linac, such as SAPPHiRE..
CERN-ACC-2015-263.- 2015 - 4 p. - Published in : (2015) , pp. TUPTY057 Published version from JACoW: PDF; External link: JACOW
In : 6th International Particle Accelerator Conference, Richmond, VA, USA, 3 - 8 May 2015, pp.TUPTY057
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5.
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EU R&D for Accelerators / Aleksan, Roy (speaker) (CPPM/IN2P3-CNRS and DAPNIA-CEA)
2011 - 25. HiLumi General Meetings; 1st HiLumi LHC / LARP Collaboration Meeting External links: Talk details; Event details In : 1st HiLumi LHC / LARP Collaboration Meeting
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6.
Book cover Briefing Book for the Zeuthen Workshop , v.3 : Working Group Instruments and Templates.
On Jun 18th 2004, the CERN Council, upon the initiative of its President, Prof [...]
Geneva : CERN, 2006. - 33 p.

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7.
Book cover Briefing Book for the Zeuthen Workshop , v.2 : Input received from the particle physics community, funding agencies, and other resources.
On Jun 18th 2004, the CERN Council, upon the initiative of its President, Prof [...]
Geneva : CERN, 2006.

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8.
Book cover Briefing Book for the Zeuthen Workshop , v.1. / Aleksan, Roy (chairperson)
On Jun 18th 2004, the CERN Council, upon the initiative of its President, Prof [...]
Geneva : CERN, 2006. - 197 p.

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9.
CARE Annual Report 2005 / Aleksan, Roy ; Napoly, O ; Proch, D ; Garvey, Terence ; Mais, H ; Ghigo, A ; Losito, R ; Rinolfi, Louis (CERN) ; Garoby, R ; Vretenar, M et al.
CARE-Report-06-001; CARE-Report-2006-001.- [S.l.] : CARE, 2006 Fulltext: PDF;
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10.
Care Annual Report 2004 / Aleksan, Roy ; Napoly, O ; Proch, D ; Garvey, Terence ; Mais, H ; Ghigo, A ; Losito, R ; Rinolfi, Louis (CERN) ; Garoby, R ; Vretenar, M et al.
CARE-Report-05-001; CARE-Report-2005-001.- [S.l.] : CARE, 2005 Fulltext: PDF;
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