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The upgraded detector will operate at a maximum luminosity of $ 1.5 \times 10^{34}$cm$^{-2}$s$^{-1}$, with the aim of integrating $\sim 300$fb$^{-1}$ through the lifetime of the high-luminosity LHC (HL-LHC). The collected data will allow to fully exploit the flavour-physics opportunities of the HL-LHC, probing a wide range of physics observables with unprecedented accuracy. In particular, the new physics mass scale probed, for fixed couplings, will almost double as compared with the pre-HL-LHC era. The accomplishment of this ambitious programme will require that the current detector performance is maintained at the maximum expected pile-up of $\sim$40, and even improved in certain specific domains. To meet this challenge, it is foreseen to replace all of the existing spectrometer components to increase the granularity, reduce the amount of material in the detector and to exploit the use of new technologies including precision timing of the order of a few tens of picoseconds. The design options for each sub-detector are discussed, and the ongoing efforts to face the associated technology challenges. For the first time, elements of the environmental impact of the project are considered. Finally, details are given about the project schedule, the cost envelope and the participating institutes. 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The upgraded detector will operate at a maximum luminosity of $ 1.5 \times 10^{34}$cm$^{-2}$s$^{-1}$, with the aim of integrating $\sim 300$fb$^{-1}$ through the lifetime of the high-luminosity LHC (HL-LHC). The collected data will allow to fully exploit the flavour-physics opportunities of the HL-LHC, probing a wide range of physics observables with unprecedented accuracy. In particular, the new physics mass scale probed, for fixed couplings, will almost double as compared with the pre-HL-LHC era. The accomplishment of this ambitious programme will require that the current detector performance is maintained at the maximum expected pile-up of $\sim$40, and even improved in certain specific domains. To meet this challenge, it is foreseen to replace all of the existing spectrometer components to increase the granularity, reduce the amount of material in the detector and to exploit the use of new technologies including precision timing of the order of a few tens of picoseconds. The design options for each sub-detector are discussed, and the ongoing efforts to face the associated technology challenges. For the first time, elements of the environmental impact of the project are considered. Finally, details are given about the project schedule, the cost envelope and the participating institutes." property="og:description" />  <meta content="summary" name="twitter:card" /> <meta content="summary" name="twitter:card" /> <meta content="summary" name="twitter:card" /> <style></style> </head> <body class="LHCb32Preprints search" lang="en">  <div id="cern-toolbar"> <h1><a href="http://cern.ch" title="CERN">CERN <span>Accelerating science</span></a></h1> <ul> <li class="cern-accountlinks"><a class="cern-account" href="https://cds.cern.ch/youraccount/login?ln=en&referer=https%3A//cds.cern.ch/record/2776420/export/hm%3Fln%3Den" title="Sign in to your CERN account">Sign in</a></li> <li><a class="cern-directory" href="http://cern.ch/directory" title="Search CERN resources and browse the directory">Directory</a></li> </ul> </div>   <div role="banner" class="clearfix" id="header"> <div class="header-inner inner"> <hgroup class="clearfix"> <h2 id="site-name"> <a rel="home" title="Home" href="/"><span>CERN Document Server</span></a> </h2> <h3 id="site-slogan">Access articles, reports and multimedia content in HEP</h3> </hgroup> <div role="navigation" id="main-navigation" class="cdsmenu"> <h2 class="element-invisible">Main menu</h2><ul class="links inline clearfix"> <li class="menu-386 first active-trail"><a class="active-trail" href="https://cds.cern.ch/?ln=en">Search</a></li> <li class="menu-444 "><a class="" title="" href="https://cds.cern.ch/submit?ln=en">Submit</a></li> <li class="menu-426 "><a class="" href="https://cds.cern.ch/help/?ln=en">Help</a></li> <li class="leaf hassubcdsmenu"> <a hreflang="en" class="header" href="https://cds.cern.ch/youraccount/display?ln=en">Personalize</a> <ul class="subsubcdsmenu"><li><a href="https://cds.cern.ch/youralerts/list?ln=en">Your alerts</a></li><li><a href="https://cds.cern.ch/yourbaskets/display?ln=en">Your baskets</a></li><li><a href="https://cds.cern.ch/yourcomments?ln=en">Your comments</a></li><li><a href="https://cds.cern.ch/youralerts/display?ln=en">Your searches</a></li></ul></li> </ul> </div> </div> </div>  <table class="navtrailbox"> <tr> <td class="navtrailboxbody"> <a href="/?ln=en" class="navtrail">Home</a> > <a href="/collection/LHCb%20Collection?ln=en" class="navtrail">LHCb Collection</a> > <a href="/collection/LHCb%20Preprints?ln=en" class="navtrail">LHCb Preprints</a> > <a class="navtrail" href="/record/2776420">Framework TDR for the LHCb Upgrade II</a> > HTML MARC </td> </tr> </table> </div> <div class="pagebody"><div class="pagebodystripemiddle"> <pre style="margin: 1em 0px;">002776420 001__ 2776420 002776420 005__ 20231009151340.0 002776420 0248_ $$aoai:cds.cern.ch:2776420$$pcerncds:FULLTEXT$$pcerncds:REPORT$$pforINSPIRE 002776420 037__ $$aCERN-LHCC-2021-012 002776420 035__ $$9INSPIRE$$a2707810 002776420 088__ $$aLHCB-TDR-023 002776420 245__ $$aFramework TDR for the LHCb Upgrade II$$bOpportunities in flavour physics, and beyond, in the HL-LHC era 002776420 260__ $$c2021 002776420 269__ $$aGeneva$$bCERN$$c21 Jul 2021 002776420 270__ $$mChris.Parkes@cern.ch 002776420 270__ $$mRolf.Lindner@cern.ch 002776420 270__ $$mCarmelo.D'ambrosio@cern.ch 002776420 270__ $$mmatteo.palutan@cern.ch 002776420 300__ $$a201 p 002776420 490__ $$atechnical design report 002776420 520__ $$aThis document is the Framework Technical Design Report for the Upgrade II of the LHCb experiment, which is proposed for the long shutdown 4 of the LHC. The upgraded detector will operate at a maximum luminosity of $ 1.5 \times 10^{34}$cm$^{-2}$s$^{-1}$, with the aim of integrating $\sim 300$fb$^{-1}$ through the lifetime of the high-luminosity LHC (HL-LHC). The collected data will allow to fully exploit the flavour-physics opportunities of the HL-LHC, probing a wide range of physics observables with unprecedented accuracy. In particular, the new physics mass scale probed, for fixed couplings, will almost double as compared with the pre-HL-LHC era. The accomplishment of this ambitious programme will require that the current detector performance is maintained at the maximum expected pile-up of $\sim$40, and even improved in certain specific domains. To meet this challenge, it is foreseen to replace all of the existing spectrometer components to increase the granularity, reduce the amount of material in the detector and to exploit the use of new technologies including precision timing of the order of a few tens of picoseconds. The design options for each sub-detector are discussed, and the ongoing efforts to face the associated technology challenges. For the first time, elements of the environmental impact of the project are considered. Finally, details are given about the project schedule, the cost envelope and the participating institutes. 002776420 595__ $$aLHCC 002776420 595__ $$aCERN EDS 002776420 595__ $$aINSPIRE$$cINSPIRE 002776420 65017 $$2SzGeCERN$$aDetectors and Experimental Techniques 002776420 690C_ $$aCERN 002776420 690C_ $$aSCICOM 002776420 690C_ $$aPUBLLHCC 002776420 690C_ $$aLHCB_Reports 002776420 693__ $$aCERN LHC$$eLHCb$$pHL-LHC 002776420 710__ $$aCERN. Geneva. The LHC experiments Committee 002776420 710__ $$gLHCb Collaboration 002776420 710__ $$aLHCC 002776420 710__ $$5PH 002776420 859__ $$flhcb.secretariat@cern.ch 002776420 8564_ $$82311576$$s53646111$$uhttps://cds.cern.ch/record/2776420/files/LHCB-TDR-023.pdf$$yFulltext 002776420 8564_ $$82311576$$s148946$$uhttps://cds.cern.ch/record/2776420/files/LHCB-TDR-023.jpg?subformat=icon-700$$xicon-700$$yFulltext 002776420 8564_ $$82311576$$s22921$$uhttps://cds.cern.ch/record/2776420/files/LHCB-TDR-023.jpg?subformat=icon-180$$xicon-180$$yFulltext 002776420 8564_ $$82311576$$s24119$$uhttps://cds.cern.ch/record/2776420/files/LHCB-TDR-023.gif?subformat=icon$$xicon$$yFulltext 002776420 903__ $$spublic 002776420 906__ $$aCERN$$mCarmelo.D'ambrosio@cern.ch$$pD'Ambrosio, Carmelo 002776420 906__ $$aINFN e Laboratori Nazionali di Frascati$$mmatteo.palutan@cern.ch$$pPalutan, Matteo 002776420 905__ $$aDepartment of Physics and Astronomy, University of Manchester$$mChris.Parkes@cern.ch$$pParkes, Chris 002776420 905__ $$aCERN$$mRolf.Lindner@cern.ch$$pLindner, Rolf 002776420 916__ $$sn$$w202129 002776420 960__ $$a16 002776420 963__ $$aPUBLIC 002776420 970__ $$a000772473CER 002776420 980__ $$aSCICOMMPUBLLHCC 002776420 980__ $$aLHCB_Reports 002776420 980__ $$aREPORT</pre></div></div> <footer id="footer" class="pagefooter clearfix">  <div class="pagefooterstripeleft"> CERN Document Server :: <a class="footer" href="https://cds.cern.ch/?ln=en">Search</a> :: <a class="footer" href="https://cds.cern.ch/submit?ln=en">Submit</a> :: <a class="footer" href="https://cds.cern.ch/youraccount/display?ln=en">Personalize</a> :: <a class="footer" href="https://cds.cern.ch/help/?ln=en">Help</a> :: <a class="footer" href="https://cern.service-now.com/service-portal?id=privacy_policy&se=CDS-Service" target="_blank">Privacy Notice</a> <br /> Powered by <a class="footer" href="http://invenio-software.org/">Invenio</a> <br /> Maintained by <a class="footer" href="https://cern.service-now.com/service-portal?id=service_element&name=CDS-Service">CDS Service</a> - Need help? 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