SANTIAGO HEP GROUP MEMBERS All members of LHCb

SANTIAGO HEP GROUP MEMBERS � � � All members of LHCb experiment member of this project � � � � * � � Bernardo Adeva Andany / USC � Madrid CSIC May, 19 2011 LHCb project 1

GENERAL OUTLINE — What have we done in our previous LHCb project build, install, coordinate and operate the LHCb Silicon Tracker (300 K channels) perform two major LHCb analysis results in 2010 — What do we plan to do in the next 3 years in LHCb 1 st objective: to create (consolidate) a reference analysis group in LHCb at Santiago 2 nd objective: to realize a main contribution to the LHCb upgrade in the VELO detector and keep Santiago contribution at highest level in instrumentation Bernardo Adeva Andany / USC Madrid CSIC May, 19 2011 LHCb project 2

SANTIAGO CONTRIBUTION TO LHCB ST CONSTRUCTION Clean room assembly Ladders Temperatue clycling Patch pannels Bonding 300 K channels FINAL PRODUCT HV and LV services PVSS monitoring coordination Installation at the pit Low mass mechanics Cabling Control Electronics Bernardo Adeva Andany / USC Silicon Tracker at the LHC Madrid CSIC May, 19 2011 LHCb project 3

SANTIAGO CONTRIBUTION TO LHCB CONSTRUCTION Silicon Tracker (300 K channels) = Inner Tracker (low angle LHC)+ TT (vertical) Santiago responsibility (in full accord with TDR): — 50% assembly of Inner Tracker stations (IT) — Design+construction of Control Electronics of whole ST — HV and LV services (ST) — coordination of slow control under PVSS (ST) 25% overall contribution to LHCb Silicon Tracker (800 KCHF Santiago contribution to capital investment) Other partners: U. Zurich, U. Lausanne (LPHE), U. Heidelberg Project Leader of LCHb Silicon Tracker: Abraham Gallas Torreira (Ry. C from USC) from Januay 2011 , for 2 years. Previous Deputy Coordinator. A great recognition to Santiago. Complete success of ST with first LHCb data taking in 2010 and 2011 : — — — no broken bonds IT efficiency and momentum resolution as expected particle multiplicities under control operation at 50 ns perfectly OK (very recent from Abraham) some ageing observed, compatible with expectations Bernardo Adeva Andany / USC Madrid CSIC May, 19 2011 LHCb project 4

BS ΜΜ ACHIEVEMENT A MAJOR LHC A high priority LHCb objective for 2010 -2012, with new physics potential First international presentation of this main LHCb result by Diego Martínez Santos at Moriond EW 2011 on March, 17 2011. 3 years of work by the Santiago group under project FPA 2008 -03076 José A. Hernando Morata (USC) co-coordinator of Bs µµ WG. 5

FIRST OBSERVATION OF BS K*K*BAR DECAY Article being submitted to PLB A full initiative of the Santiago group in LHCb, 3 years of preparation under project FPA 2008 -03076. A highway is open for precision CP-violation 6

CREATION OF A REFERENCE ANALYSIS GROUP IN LHCB Our first main goal for this project is to consolidate an analysis team in Santiago that LHCb can trust for any CP-violation analysis to come. — Reinforce our contribution and steer in the following years the Bs, d µµ analysis, up to the Standard Model limit — Study Bs VV where V=light neutral vector mesons (K*0, Ф …) • probe SM in b s transitions • 4 –charged particles, separation even/odd CP-amplitudes • quark operators in penguins, chirality between 2 nd and 3 rd generations We are a strong group doing analysis (3 senior, 2+1 postdocs, 3 students). Our people have: the expertise, the talent, the means (TIER 3/TIER 2), a reputation in the collaboration (a strong contibution so far : 2 out of 5 first b-physics papers of LHCb) Need frequent travel to CERN to analysis meetings and specific workshops. Students STEERING POSTDOC senior physicists We need the means to engage and train THE BEST young physicists Bernardo Adeva Andany / USC Madrid CSIC May, 19 2011 LHCb project 7

MOTIVATION OF LHCB UPGRADE CERN/LHCC 2011 -001 LHCb Lo. I yet submitted to LHCC • b and c quarks appear virtually in loops. Any direct observations of new particles at LHC would have effects on b and c processes and the different sizes of such effects would tell us much about the nature of the new particles. • Because of its flexible trigger, after being upgraded, LHCb can explore many other phenomena in the forward direction, and can adjust the physics explores by adjusting the trigger. • we consider LHCb as a General Purpose detector for the forward direction. The only experiment that can look for “exotic” processes in 2 < <6 and at low p. T. e. g. “Hidden Valley” decays of the Higgs boson into two neutral scalar objects (bb, long lifetimes). Not likely to be accesible by ATLAS or CMS. • we list 5 processes where more precision will be crucial. Recent accomplishments by LHCb (B ) : K+ - , + -, K+ K- very competitive statistics 4 new decay modes found : Bs D*2 µ , Bs f 0, b c Ds , Bs K*0 the latter discovered by Santiago, and quite promising for precision CP-violation Bernardo Adeva Andany / USC Madrid CSIC May, 19 2011 LHCb project 8

ADVISABILITY OF LHCB UPGRADE FOR SANTIAGO WE NEED : to keep our strong position in detector instrumentation to pursue our objectives in flavor physics to the end to pass over our technical expertise, even if key engineers are lost to prepare for physics beyond LHCb and learn at maximum from its experience, for the benefit of the whole community Bernardo Adeva Andany / USC Madrid CSIC May, 19 2011 LHCb project 9

USC PARTICIPATION IN LHCB UPGRADE • • • Full detector has 26 stations. The modules on either side of the beam are staggered to create overlap regions. This layout has been simulated to be fully efficient (4 hit /track) in the LHCb acceptance 250 x 300 mrad. VELO DETECTOR LAYOUT probably the most ambitious micro-vertex FORWARD detector ever built in particle physics Bernardo Adeva Andany / USC Madrid CSIC May, 19 2011 LHCb project 10

USC PARTICIPATION IN LHCB UPGRADE – MODULE 0 VELO pixel module 0 — sensor tiles: made of 3 readout ASICs on a single sensor, with guard ring of 500 um ~43 mm Sensor tile : ASIC sensor — 2 sensor tiles are mounted on opposite sides of the substrate — substrate choices: • Diamond: excellent mechanical and thermal properties low mass • Carbon fibre/TPG or Al/TPG ~15 mm Cooling channel Top Sensor 200 um ASIC 150 um Substrate 250 um ASIC 150 um Bot Sensor 200 um Connector Santiago very well received in the Ongoing development VELO upgrade USC/CNM collaboration for sensor and chip thinning A. Gallas GICSERV (NGG): NGG-233 Bernardo Adeva Andany / USC Madrid CSIC May, 19 2011 LHCb project Glue 50 um 11

USC PARTICIPATION IN LHCB UPGRADE – HIGH SPEED LINK USC activity (with J. Buytaert) — Readout speed is a concern in current high-density pixel detectors since effective data Tx rate goes above Gbits. Typical issues: • zero suppresion needed in the chip • local copper interface to a high speed optical link — Problems to face: • skin effect in conductor and dielectric losses • control the cable mechanical parameters to achieve the desired performance • signal compensation needed if distances above several tens of cm — Build prototype cable to assess the performance of a high-speed flex cable ‘Pyralux ® AP-PLUS from Dupont — Study high frequency behavior of different configurations with network analyser as well as radiation hardness Male-female miniature connectors Area 3 High speed link prototype Daniel Esperante Layout development (USC): Area 2 Area 1 SMC connectors Area 1 : to study parameters of coupled differential lines Area 2 : to study parameters of decoupled strip-lines Area 3 : to place a miniature fine pitch connector and test a Tx line with the connector 12

FPI fellow to work on the LHCb analysis, with a serious chance to discover New Physics beyond the Standard Model either in a nonzero value of the CKM phase S or by observing a Bs µµ branching ratio above the SM value. FPI FELLOW DEFENSE — The group has a strong position in LHCb to boost his/her participation really high — 3 recent examples of exceptional contributions by Santiago FPI/FPU fellows are: • Diego Martínez Santos, FPU, main author of LHCb Bs µµ analysis, CERN fellow • Daniel Esperange Pereira , FPI 2002, creator of LHCb ST Control Electronics • Paula Alvarez Cartelle , FPI 2007, discoverer of the Bs K*K*b decay mode — Group training capacity for both analysis and instrumentation, at maximum level — Timely awarding, about 5 years from previous FPI Bernardo Adeva Andany / USC Madrid CSIC May, 19 2011 LHCb project 13

LHCB SHIFTS PLAN Approved at Sept , 2010 LHCb Collaboration Board This means a significant dedication and budget - see below Bernardo Adeva Andany / USC Madrid CSIC May, 19 2011 LHCb project 14

PERSONNEL REQUEST Postdoc for analysis , 3 years (126. 000 €) take responsibility in CP-violation analysis b s penguins Bs VV (phi phi, phi K*0 y K*0 bar) essential for the creation of a reference group in LHCb make fluid interface with collaboration and with students Ingeniero Superior or Ph. D. , 30 months (96. 000 €) key position to keep Santiago’s leadership position in LHCb upgrade assembly double-sided multichip device + diamond substrate + signal integrity tests integration in LHCb micro-vertex (VELO) group 4 contracts for hiring young physicists (between 12 and 18 month) (110. 000 €) bridge for students before they get a doctoral grant to make a Ph. D reasonable probe period to define further mutual interest Postdoc R&D Si PMTs , 2 years (84. 000 €) wider scope R&D in pixel detectors in relation with NEXT TPC in Canfranc Bernardo Adeva Andany / USC Madrid CSIC May, 19 2011 LHCb project 15

EQUIPMENT AND CONSUMABLES REQUEST Bernardo Adeva Andany / USC Madrid CSIC May, 19 2011 Equipment 148. 1 K€, Consumables 125 K€ LHCb project 16

TRAVEL AND PERDIEMS Bernardo Adeva Andany / USC Madrid CSIC May, 19 2011 LHCb project 17

TOTAL REQUEST Bernardo Adeva Andany / USC Madrid CSIC May, 19 2011 LHCb project 18

BACKUP Bernardo Adeva Andany / USC Madrid CSIC May, 19 2011 LHCb project 19

USC PARTICIPATION IN LHCB UPGRADE – VELO STRIP OPTION — In case the material budget/power consumption of the pixel option falls beyond specifications or time limits, a backup strip option is being prototyped — Key points: • Optimization of strip capacitance (< 4 p. F) to bring down noise • Increase in number of strips and better layout: 30 mm minimum pitch, 20 x 128 strips per sensor • Expected occupancy at upgrade will be 0. 5% for first phase • New chip also needed (synergy with IT/TT) • IP resolution superior to pixels Santiago has contributed with several protypes as described in the Lo. I Bernardo Adeva Andany / USC Madrid CSIC May, 19 2011 LHCb project 20

PARTICIPATION IN SIPMTS DEVELOPMENT FOR NEXT 100 NEXT : is an international collaboration to built a 100 kg enriched Xe TPC to search for neutrinoless double beta decay. The detector has a SOFT design: The energy of the double beta decay is measured with 1% FWHM resolution thanks to high presure PMTs. The electrons are tracked thanks to the measurement of the t 0 from primary scintillation, and the position thanks to a Si. PMTs plane. The Collaboration plans to built a full 100 kg detector by 2013, to be installed at Canfranc Underground Laboratory. The Conceptual Design Report has been recently approved. The collaboration is funded by the Consollider CUP (Canfranc Underground Physics) USC signed CUP (J. A. Hernando) USC has contributed to the characterization of the Si. PMs and to the software and analysis. USC plans to built 1/4 of the Si. PMs boards needed for NEXT 100. That requires the installation of a setup at USC and be in close contact with the main institute responsible of the Si. PMs plane, IFIC (Valencia) Bernardo Adeva Andany / USC Madrid CSIC May, 19 2011 LHCb project 21

Bs μ+μ- in LHCb Diego Martínez at 36 th ITEP Winter School of Physics (2008) + • BR (Bs μμ ) in SM: (3. 55 ± 0. 33)x 10 -9 (for Bd : (1. 00 ± 0. 14)x 10 -10) • Current limit (Tevatron) : BR< 4. 7 x 10 -8 @ 90% C. L, (for Bd : BR < 1. 5 x 10 -8) • One order of magnitude from current upper limit to SM prediction !! This BR can be affected by New Physics, in particular SUSY models. MSSM: Enhancement ~tanβ 6 larger value STRONG DISCOVERY / EXCLUSION POTENTIAL BY LHCb Bernardo Adeva Andany / USC Madrid CSIC May, 19 2011 LHCb project 22

USC IN LHCB UPGRADE – MORE DETAILS ON MODULE 0 Issues related to sensor/chip part of Module 0 construction: - tile 200 µm n-in-p radiation hard both p-spray and p-stop bump bonding 3 ASICs guard ring + distance between ASICs is an issue Título: R&D on thin silicon pixel sensors for the upgrade of the vertex detector of the LHCb experiment. Investigador: Abraham Gallas Torreira Numeración Global GICSERV(NGG): NGG-233 Numero Proycto-Convocatoria: 32 - 7ª Convocatoria (Nov 2010 a 150111) Bernardo Adeva Andany / USC Madrid CSIC May, 19 2011 LHCb project 23

LHCb Week – Collaboration Board, March 21 2011 CB P UF F Be RJ ijin LA g PP LP CP C PM LA LP L NH E TU D M Un PI i. HD UC D Bo Bari lo Ca gna g Fe liari rra Fir ra en ze LN G F Mi enoa lan Ro o B m Ro a 2 ma Nik 1 he f Cr VU ac Cr HN ac AG I H SIN IFI N- S HH PN P SIN ITE I PM P SU INR BIN IHEP P UB US EP C FL UZ H KIP KIN T R BR Ca S mb r Wa r Ed RA inb L Gla urgh Liv sgow er Im pool p UN eria IM l A O N Sy xford ra CC cus e I RION 2 P 3 -PU CE C RN • 50 14 45 Number of Shifters 12 compared to Authors 10 40 8 35 6 30 25 20 0 CB P UF F Be RJ ijin LA g PP L CP PC PM LP LAL NH E TU D MP Un I i. HD UC D B Bo ar log i Ca na g Fe liari r Fir rara en ze L Ge NF Mi noa lan Ro o B m Ro a 2 ma Nik 1 he f Cr VU a c Cr HN ac AG I S H IFI INS NH PN H P SIN IT I P M EP SU IN BINR IHEP P UB US EP C F UZ L KIPH KIN T R B Ca RS mb War Ed RA r inb L Gla urgh Liv sgow er Im pool UN peria IM l O AN Sy xfor r d CC acus e I RION 2 P 3 -PU CE C RN 2010 Annual Shift Summary Each author (507) should have contributed to 16. 4 shift slots in this period Total number of shifters: 298 Each shifter contributed to 27. 8 shift slots Thus, 1. 1 shifts per month per author 1. 9 shifts per month per volunteer as compared to the 1. 5 -rule Number of Functions 4 2 15 10 5 0 R. Jacobsson 24

STUDY OF CHANNEL Arosen from discussions at joint “LHCb-Theory Group” at CERN between Santiago group and Joaquim Matías (UAB), Phys. Rev. D 76, 074005 (2007) K*0 meson decays into charged particles (K+ -) angular analysis possible at LHCb Not included in original goals of the experiment Branching fraction yet unmeasured, expected relatively large for Bs : 9 x 10 -6 Penguin dominated b s decay SENSITIVE AND PRECISE METHOD TO MEASURE S = 2 S AND PROBE NEW CPV PHASES Bernardo Adeva Andany / USC Madrid CSIC May, 19 2011 LHCb project 25

BS ΜΜ AN IMPORTANT LHC ACHIEVEMENT First international presentation of Bs mumu by Diego Martínez Santos 26