Sach fo a Sadad Modl Higg Boo i h H llqq Chal a CMS Facco Padolfi Supvio: Do. Dail dl R Smiaio Fial Dooao i Fiica, XXIV Ciclo 8..
Facco Padolfi Smiaio Fial, Dooao XXIV Ciclo, 8..
Th Lag Hado Collid Poo-poo collid Cicumfc: 7 km - Phyic Ru: p =7 TV L > cm Boy, i goig wll Li > fb - by d of H howig oly.6 fb - Facco Padolfi Smiaio Fial, Dooao XXIV Ciclo, 8..
Th Lag Hado Collid Poo-poo collid Cicumfc: 7 km - Phyic Ru: p = 7 TV L > cm up o h i hi alk Boy, i goig wll Li > fb- by d of H howig oly.6 fb- Facco Padolfi Smiaio Fial, Dooao XXIV Ciclo, 8..
Colliio i a Hado Collid Poo a compoi paicl: acio happ a pao lvl Hado collid a dicovy machi: ca pa boad gy ag p xe xe p Ev i o clod kimaically: c of ma fam lab fam x x Bu v i clod o av pla p p pt LONGITUDINAL VIEW Facco Padolfi Smiaio Fial, Dooao XXIV Ciclo, 8.. TRANSVERSE VIEW
Th Compac Muo Soloid Wigh: Silico i ackig ym m Homogou lcomagic caloim (ECAL) Supcoducig 4T magic coil m Muo ym mbddd i mag u yok Hmic hadoic caloim (HCAL) Facco Padolfi Smiaio Fial, Dooao XXIV Ciclo, 8.. 4
(Gomical) Pudoapidiy η = - l a (ϑ/) η = CMS η =.47 bam ϑ iacio poi η = (CMS ach up o η = ) Facco Padolfi Smiaio Fial, Dooao XXIV Ciclo, 8..
Th Miig Pic Nau of lcowak ymmy bakig i ill a myy Simpl oluio: Higg boo Higg ma f paam Expimal coai: Fom dic ach a LEP ad Tvao Idic o fom LEP pciio EWK maum Facco Padolfi Smiaio Fial, Dooao XXIV Ciclo, 8.. 6
Dicovig h Higg Th dcay chal will div h fial chap of Higg ach LOW MASS HIGH MASS H γγ a a chal o hav cla igau H WW lag co-cio b fo xcluio bu: uio H b fo dicovy Facco Padolfi Smiaio Fial, Dooao XXIV Ciclo, 8.. 7
/c /c Ev 4 m H = GV/c m H = GV/c /c Th H Dcay m H =4 GV/c 6 c - 6 fb /c /c /c 6 c H mo pomiig dicovy chal fo mh 8 GV/c 4 6 [GV/c M 4µ If boh dcay o lco o muo: vy cla igau, bu low yild Ev/ GV/c 6 4 CMS Plimiay (b) 4 6 [GV/c (d) - = 7 TV L =.66 fb DATA +j m H = GV/c m H = GV/c m H =4 GV/c M 4l Facco Padolfi Smiaio Fial, Dooao XXIV Ciclo, 8.. coucd ma fo h bali lcio i (a) H...bu wha if o of h boo dcay o quak? 8
d/dm QCD H. H. H Dcay H. boo mo pomiig dicovy Dcay o chal wo boo fo mh " mo 8 GV/c pomiig dicovy chal fo mh " 8 GV/c 4 4 m 4µ [GV/c m 4 [GV/c m 4µ [GV/c ay o lco o muo, vy If boh cla igau dcay o lco o muo, vy cla igau (a) (b) CMS Plimiay qq"(*) gg"(*) bb +J W+J QCD H H H H 4 4 m µ [GV/c (c) (b) PhD Thi Pojc,.6. pcum af bali lcio fo Facco (a) 4, (b) 4µ Padolfi (c) PhD Thi Pojc,.6. Figu 6: Fou lpo coucd ivaia ma pcum af bali lcio fo (a) 4, (b) 4µ ad (c) pcum xpcd µ. Th fopcum a xpim ha oab fbipd of igad a h ma pcum xpcd fo a xpim a fb of igad ( ) coiuum lumioiy. adth i civ 4 pcum a iumal i compod coibuxpcaio moly of h ( ) coiuum ad i civ a iumal coibuio fom fom a Higg b b. Supimpod boo igal fo h ma fo hypoh illuaio i h xpcaio fom a Higg boo igal fo ma hypoh of,, ad GV/c. 4 d/dm Th H H H H H H Dcay.. 4 4 4 4 Th H llqq Chal d/dm [fb/ GV/c.... H"*"µ Af Slcio d/dm. 4 4 CMS Plimiay qq"(*) gg"(*) bb +J W+J QCD H H H H m...bu wha if o of h boo µ [GV/c dcay o quak?...bu wha if o of h boo dcay o quak? Quak will hadoiz ad fom paicl j (c) J: complx objc, challgig o couc Exchagig pcily maud objc wih l pci 4 Bu ca choo diff flavou colou Ovall co-cio mo ha im lag H H H H H j j u c d b Facco Padolfi Smiaio Fial, Dooao XXIV Ciclo, 8.. 9
S µ(o )l,c dg VG W+J /< ab[ H fo v W+JHQCD "* fa. <. p l Iolaio pt : am wv ptc/.9iqcd <.6 µ 4 µio µ H µ4 Io la la la C l(µ)io l ). ica 4/4µ I T I o / b ) < QCD o H M c G a ls H,.4 S wo iolad H H <, p4 /V.. < c µ o H µ o P C l l Io if l=(µ) µio <. p G l lh i I 4 I i H la 4 ) T M o µo lo il G ict,lc µa c/v H H PS < olih im 4IP ) < IP D IP D (wo µ) < G< l o D (wo l(wo l) < a Iµ. a i V / H <a H H c y c c d wo /V im d <P I o IPD ( yip IP D (d wo µ) < 4 q wo l) < 4 ug ) <c4oih ad q(.< cip D. I (. D. P<I H co/fv " P u g w g q po (D. ( a I. * ", "qgv/c [ )GV/c T d4 p ow( D M ll P of ( b*( "gg h * D H ) a b ( T l w l GV/c [ GV/c,) c o µ d M )*( h bb d/ d/dm [f d d/ f[ m /b d d/ [m /bf Th H Dcay H Dcay Dcay o wo boo mo pomiig dicovy chal fo m " 8 GV/c c Backgoud ) 4 + omiig dicovy fo 8 mh." ah J W chal < GV/c 4 4 ow4. c c /V J+ wo boo o cay mo pomiig dicovy chal mh " 8 GV/c. CQ J+ fo.l.bali ah Tabl m [GV/c )4µ [GV/c cu W m 4 4 : S of lcio fo chal. allj+h 4 µ D l < H CQ "H m4µ [GV/c o.lco igau H 4 4 4 cla If44 boh dcay o muo, vy * H A H D H f " " 4 (b) "* fa.plimiay 4µ CMS m H H o o p H l o d/dm [fb/ GV/c p m l c om ii c o i CMo o ig g di S P m di co li o OTHER BACKGROUNDS: SP mi mco 4 v l u (b) o am im y by u 4µ [v 4 m ( i 4 ) o qq ay 4µ [, 4 Gy " gg d/dm [fb/ GV/c G v V/cc cha " (*, ) v V/c y ha b (*) l (*) b c y l *+) fo c a J la l fo m J ig m H " ig au H " 8 au G 8 G V V /c /c ( )* " gg qq"(*) q "q g gg"(*) b )*("g bb ( b * qqb"(*) J+) J+W gg"(*) J+ +J DCQH b J+W W+J b H Q QCD H DC. H +J H H H H W+J H H QCD H H H H )*µ " H"*" (.b Af Slcio.... CMS Plimiay H H H H 4µ H"*" H MAIN BACKGROUND Af Slcio qq"(*) D /d md bf[ d d/ SIGNAL m bf[ µ4 ic MC. ls ocms Plimiay S C H"*"4 ic (b) P o il SM P Af Slcio im. a ilµ H"*" y im q CMS Plimiay a q y Af Slcio / ls G µ / 4 (b) d/dm [fb/ GV/c G /V T T h m [GV/c mmuo, [GV/cvy cla igau h H boh dcay o lco o muo, vy cla igau c D a o y yac D D ow wg [o mb fi m c ya yac oob b Hc/oVh/oVG[ obfi + j (σ ~ pb) qq"(*) gg"(*). bb +J W+J QCD H H H H... 4 )a( 4 4 4 4 4. c gg"(*) b b +J W+J)a( QCD H H H H.o d h o Th om m H adcay c d. y. o c Co cio 4 lag ha igal. p a o y "H o mo op cl H i * fa " i "H l. H. m Dcay mo * S o A dicovy ii o g µ c f. " l wo boo pomiig chal fo mh " 8 GV/c H c d g o i o µ ls oi. MC. S 4 lp c id c 4 4 C oi SM o(σ 4 c pb) ~ m o i v 4. ( m m P i u b ) o m4µ [GV/c a il y m 4 v[ µ4 4omm 4 [GV/c ( y m i u )b c yv G444, o q µ4 [ boh If ya o dcay vy.cla. igau v ah m "q lco o muo, / (a) G c [GV/c c, (b) q "gg h µ ( q * V v...bu...bu wha of h boo o quak? y c/ dcay g boo dcay o quak? " g l if o a wha if) )o b*(h *( c f 4 4 y bof l " ) c ( (c) o a bb CMS l f l m +)* Plimiay µ [GV/c o J W m i Pojc,.6. ν a i(c) + boo. +...bu wha if o of h dcay o quak? J ioh fopadolfi (a) 4, (b) 4µ ad cco PhD Thi Pojc,.6. J g. Q if m H"* µ(b) 4µ ad (c) pcum gaf ucd ivaia ma (a)"4, i bali lcio fo H of DC H J+W a (c) ug. pim a fb igad F Q " C Top Diboo xpcd fo a xpim u. µ H AfaSlcio ugi D H pd a h ma pcum fb of igad 6 a : q q " (*) l iv a iumal coibu 8 H H Padolfi PhDad Thi.6. coibu Pojc, F T ( ) igal uaf 6u.µ l gg"(*) compod moly of h coiuum i civ do ivaia ma bali lcio fob(a) a 4,iumal (b) 4µ ad (c) H H uo p h ofi:m fo mapcum hypoh l ` io hoti imu (σxpcd ~ pb) (σ ~ pb) bb H i h xpcaio fom a xpim Higg booaigal hypoh dfo a illuaio h ma pcum fo a fb fo of ma igad i op c.yu f?? k k ua oo acf h mfu 4ohpTl cmop.yif of o fo bbu ht, m H cc o o caaopc ash.m /W,4. bb, u u b o c c p i P o p S u a d c cu pmbi ac pu, diavi papicodim oi du mi a o l fia d d pam m c( o hpd im v d 4 op o c )m a filaoi mog d 4 [ µ am fd /V h ( h d 4 G )cm oam uhlli ao d.ocp of /VG 4 [ µ p c/v G uc p a opyl am.c om ulli c/v m l oia cf o-oa y c h a f mu ( a mu hc pi h fo oia mall co cio ) f b Pila cpx aobc xpxmu) ( h i... h b c D of d hupuili oicap oc cpx u 4bh4.T..l w oic a ht lad h mµw[gv/c m oof d uui oia iu x d m c P a if a m h f ip ioi H...bu f a of h boo dcay o quak? a dwha mo if o i aj)oa( odooao Smiaio Ciclo, 8.. o (c) Fial, mjopiocf ggpixxxiv i f c a, i v 4 o H ( i fo (, a c a )a omb c gg miig gy i o +J W+J QCD H H H H b-j ha. ua o q o q fo (aa)j cif 4,,o of fb (b).o h. 4µ6f. h b u4mµ6. of a a i d ( o m ia adl c( ga c) bo o gh co) d d o o aypdo ibu d c ib h ay c h u ay d/dm [fb/ GV/c H H w Facco Padolfi ` W ν. H 4..b u 4 /d md bf[ / /d G md /V c bf[ / G /V. cod. moly of h ( ) coiuum ad i civa iumal coibuwma hypoh illuaio i h xpcaio fom a Higg boo igal fo bh H c
d/dm [fb/ GV/c Tabl : S of bali lcio cu fo all h chal.. H"*"4 Af Slcio A Shoppig qq"(*) Li. QCD H llqq imila o H 4l.. Th gg"(*) bb +J W+J H Mo challgig o couc Lag igal yild H H H H Bu lag backgoud m 4 [GV/c Dcay CROSS SECTIONS [pb 4l llqq Raio. Sigal.. / Dcay o wo boo mo pomiig dicovy chal fo mh " 8 GV/c Backgoud 4 4 / m 4µ [GV/c If boh dcay o lco o muo, vy cla igau 4 4 (a) CMS Plimiay CMS Plimiay d/dm [fb/ GV/c. Af Slcio qq"(*) gg"(*).. H"*"4µ (b) bb +J W+J QCD H H H H W d o wok o ho j: d/dm [fb/ GV/c. Accua j calibaio. B poibl j oluio. H U kowldg ha hy com fom a Wha abou j flavo?. H"*"µ Af Slcio CMS Plimiay qq"(*) gg"(*) bb +J W+J QCD H H 4 4 m µ Facco Padolfi Smiaio Fial, Dooao [GV/c XXIV Ciclo, 8.. H H
J phoo+j Calibaio wih Phoo+J Ev Phoo ad j a balacd ECAL ECAL pciio ud o caliba j HCAL Facco Padolfi Smiaio Fial, Dooao Caoo XXIV Ciclo, 8..
J Calibaio wih Phoo+J Ev Daa / MC...9.9.8.8 - CMS,. fb +J, <. Balacig (FIT =.978 ±., /NDF = 9.97/8) MPF (FIT =.98 ±., /NDF =./8) 4 Phoo p T = 7 TV. PFJ Ai-k T [GV/c Abolu cal ucaiy [% CMS, L = 6 pb 9 8 7 6 4 - Toal ucaiy MPF mhod Phoo cal Exapolaio Off () Ridual J flavo Ai-k T R=. PF p = 7 TV T % (GV) Daa/MC ~ 98.% Calibaio ucaiy < % ECAL HCAL Facco Padolfi Smiaio Fial, Dooao XXIV Ciclo, 8..
bb +J W+J QCD H H H H Coaiig h qq Ma Impo ma o dij ym dicovy chal fo mh " 8 GV/c Ca b do i wo way 4 4 4µ [GV/c Simpl 4-vco calig, vy cla igau Kimaic fi: ak i accou j oluio Nomalizd o Uiy.4...8.6.4 CMS Simulaio = 7 TV m H = GV/c No Cocio M Coai Ki. Fi. 6 8 4 6 8 4 4 44 Ivaia Ma [GV/c H Miimizig j oluio ffc B Higg ma oluio i igal No ffc o backgoud Facco Padolfi Smiaio Fial, Dooao XXIV Ciclo, 8..
J: No Ju Kimaically Diff Sigal: dcay of a boo Oly quak Dmocaic w flavo Backgoud: Nomalizd o Uiy.6 CMS Simulaio = 7 TV..4. quak Hlljj (4) Hlljj () + J gluo Lo of gluo Havy flavo (b) uppd q.. - Ladig J Pao Flavo b +j: g j j Ca w lc b-j? Ca w jc gluo j? Facco Padolfi Smiaio Fial, Dooao XXIV Ciclo, 8.. 4
Idifyig b-j: b-taggig b-quak hadoiz hough a B mo Log lifim dcay vx Ev / () 4 - CMS Plimiay,.6 fb Ud Tagg = 7 TV Daa + J /W/WW /W b-aggig: impac paam of ack H(4) bam axi Pimay Vx Impac Paam 4 6 8 4 6 8 TCHE WORKING POINT EFFICIENCIES b u,d, Mdium -7% ~% Loo 7-9% ~% Facco Padolfi Smiaio Fial, Dooao XXIV Ciclo, 8..
Facio of J Egy Quak-Gluo Dicimiaio: Th Ida Backgoud hav lag gluo-j ifilaio Gluo: coupld o h og fild w quak Gluo hadoizaio: mo paicl Paicl Flow giv paicl-lvl ifo Th vaiabl: Chagd mulipliciy Nual mulipliciy pt diibuio amog paicl i j P T D = P p T ( P p T ) Nual Hado 6. Abolu J Egy Scal Elco (GV) Facco Padolfi Smiaio Fial, Dooao XXIV Ciclo, 8.. 6 Figu : PF j compoiio. Lf: gy facio Compo facio ack.9.8.7.6..4.. CMS, L = 6 pb. Chagd Hado Phoo - Icluiv j η <. Daa NHF MC NHF Mak: daa Daa NEF MC NEF Solid: Daa CHF imulaio MC CHF p = 7 TV T Daa - MC fo p facio [%
Buildig h Quak-Gluo Dicimiao Nomalizd o Uiy...8 CMS Simulaio = 7 TV 8 < p < GV/c T Quak J Gluo J Nomalizd o Uiy..8 CMS Simulaio = 7 TV 8 < p < GV/c T Quak J Gluo J Nomalizd o Uiy.6 CMS Simulaio 8 < p < GV/c T = 7 TV Quak J.4 Gluo J...6.6.8.4..4..6.4. 4 J Chagd Mulipliciy 4 J Nual Mulipliciy....4..6.7.8.9 p Diibuio T Nomalizd o Uiy.9.8.7.6 CMS Simulaio = 7 TV 8 < p < GV/c T Quak J Gluo J..4.. Th vaiabl combid i a liklihood dicimia.....4..6.7.8.9 Liklihood Facco Padolfi Smiaio Fial, Dooao XXIV Ciclo, 8.. 7
Complmay o B-Taggig b quak hadoiz lik gluo (alady by OPAL) Would b cu away by Q-G dicimiao Cu: (QGJ*QGJ) >. i -bag cagoy oly Cu away ~half of h BG, mall ffc o igal Cu Efficicy (MC) Ma Sigal +J 86% 7% 4 8% % 87% 44% Nomalizd o Uiy..8.6.4 - CMS Simulaio, fb Hlljj (4) + J = 7 TV Nomalizd o Uiy.6 Hlljj (4)..4.. - CMS Simulaio, fb + J = 7 TV Nomalizd o Uiy..8.6.4 - CMS Simulaio, fb Hlljj (4) + J = 7 TV.....4.6.8..4.6.8 Ladig J Q-G Liklihood Subladig J Q-G Liklihood Facco Padolfi Smiaio Fial, Dooao XXIV Ciclo, 8....4.6.8 Q-G Liklihood Poduc 8
Maximiz Sigificac: Th Cagoi H lq b-ag b-ag b-ag O mdium aggd, o loo Pu cagoy Low igal yild (-ag) ad a la o loo Wo cagoy Lag backgoud Th, bu Q-G >. High igal yild Lag backgoud Facco Padolfi Smiaio Fial, Dooao XXIV Ciclo, 8.. 9
H H H H Dcay o wo boo mo pomiig dicovy chal fo mh " 8 G iig dicovy chal fo mh " 8 GV/c 4 4. 4 4 Fighig h Backgoud cay 4 4 mo m 4 [GV/c wo boo mo pomiig dicovy m 4µ [GV/c 4µ [GV/cchal fo mh " 8 GV/c If 4 boh 4 dcay o lco o muo, 4 4 vy cla igau uo, vy cla igau (b) ) 4 [GV/c m 4µ [GV/c oh dcay o lco o muo, vy cla igau d/dm [fb/ GV/c. Af Slcio... H"*"µ Af Slcio H"*"µ d/d.dcay H. CMS Plimiay (b) CMS Plimiay qq"(*) gg"(*) bb qq"(*) gg"(*) +J bb W+J QCD +J H W+J H QCD H H H H H H 4 4 H H m...bu wha if o of h µ [GV/c boo dcay o...bu quak? wha if o of h boo dcay o q (c) m µ [GV/c...bu wha if o of h boo dcay o quak 4 4 v. i Pojc,.6. co Padolfi PhD Thi Pojc,.6. fo (a) 4, (b) 4µ ad (c) ucd ivaia im Facco a fb Padolfi ma of igad (c) pcum af bali lcio fo (a) 4, (b) 4µ ad (c) ipd a h ma pcum xpcd Smiaio fo Fial, a xpim Dooao a XXIV fb Ciclo, of igad 8.. H H
Agula Aalyi Sigal: pi- dcayig o pi- pai Ifluc o fial a agl Fiv idpd agl poducio agl: θ *, φ hliciy agl: θ, θ, φ Mo fid ifomaio ha kimaic No colad o ma Pv backgoud hap Facco Padolfi Smiaio Fial, Dooao XXIV Ciclo, 8..
* Agula Liklihood Dicimia co(θ*) Φ co(θ) Φ co(θ) ig Pojcio of P Higg 9 8 7 6 4 ig Pojcio of P 8 7 6 4 ig Pojcio of P 8 6 4 ig Pojcio of P 8 7 6 4 ig Pojcio of P 8 6 4 co Pojcio of P +j - -.8 -.6 -.4 -...4.6.8 co * 8 6 4 - -.8 -.6 -.4 -...4.6.8 co * Pojcio of P * - - - * 4 - - - * Nomalizd o Uiy.9.8.7.6. co Pojcio of P....4..6.7.8.9 co 4 - CMS Simulaio, fb....4..6.7.8.9 co Hlljj (4) + J = 7 TV Pojcio of P - - -.... - - - co Pojcio of P - -.8 -.6 -.4 -...4.6.8 co.... - -.8 -.6 -.4 -...4.6.8 co.4.......4..6.7.8.9 Hliciy Liklihood Dicimia Facco Padolfi Smiaio Fial, Dooao XXIV Ciclo, 8.. D PDF fo igal ad BG ud o compu LD
Agula Liklihood i Daa: Look Good Ev / (.) 4 8 6 - CMS Plimiay,.6 fb Daa + J /W/WW /W = 7 TV H(4) Ev / (.7) 4 8 6 - CMS Plimiay,.6 fb Daa + J /W/WW /W = 7 TV H(4) Ev / (.) - CMS Plimiay,.6 fb Daa + J /W/WW /W = 7 TV H(4) 4 4 Ev / (.4 ad) 8 6 4 - -.. co( ) - CMS Plimiay,.6 fb Daa + J /W/WW /W = 7 TV H(4) Ev / (.4 ad) 4 8 6 4..4.6.8 co( ) - CMS Plimiay,.6 fb Daa + J /W/WW /W = 7 TV H(4) Ev / (.) 4 8 6 4 - -.. * co( ) - CMS Plimiay,.6 fb 6 Daa + J /W/WW /W = 7 TV H(4) - - - [ad - - - [ad Facco Padolfi Smiaio Fial, Dooao XXIV Ciclo, 8......4..6.7.8.9 Agula Liklihood Dicimia
Fial Aalyi Slcio -bag -bag -bag Lpo pt > 4/ GV 7 < Dilpo ivaia ma < GV 7 < Dij ivaia ma < GV Kimaic fi applid o j AgulaLD >. mh +. AgulaLD >.66 mh +. AgulaLD >. QGLiklihood Poduc >. pfmet Sigificac < Facco Padolfi Smiaio Fial, Dooao XXIV Ciclo, 8.. 4
Fial Ma Spca b-ag b-ag b-ag Ev / GV 4 8 6 4 8 6 4 - CMS Plimiay,.6 fb = 7 TV Sidbad Exapolad Fi b-ag lq daa + J /W /W/WW 4 GV SM Higg Ev / GV 4 8 6 4 8 6 4 - CMS Plimiay,.6 fb = 7 TV Sidbad Exapolad Fi b-ag lq daa + J /W /W/WW 4 GV SM Higg Ev / GV - CMS Plimiay,.6 fb = 7 TV Sidbad Exapolad Fi b-ag lq daa + J /W /W/WW 4 GV SM Higg 4 6 7 m [GV 4 6 7 m [GV 4 6 7 m [GV Blu li i o a fi: backgoud imaio fom daa Compaio o MC o lva fo ul Facco Padolfi Smiaio Fial, Dooao XXIV Ciclo, 8..
Nohig Exciig o Rpo σ 9% /σ SM 6 4 CMS plimiay.6 fb a = 7 TV CL S Obvd CL S Expcd CL S Expcd ± σ - Did fid ayhig y No xc xcluio 8 6 4 CL S Expcd ± σ SM Thi aalyi alo: Excludig SM i 6-44 GV (xpcd 6- GV) Rachig ~. SM a GV 4 4 6 M H [GV Sill huig... Facco Padolfi Smiaio Fial, Dooao XXIV Ciclo, 8.. 6
A Majo Play i h High Ma Sach Compaabl o H 4l i h high ma gio ( GV) Miio accomplihd Facco Padolfi Smiaio Fial, Dooao XXIV Ciclo, 8.. 7
Cocluio Higg: mo luiv paicl i hioy of phyic High ma caio: H mo pomiig fo dicovy H llqq: vy challgig chal Lo of backgoud J a ough Bu w mad i a majo play, quzig up o h la bi of pfomac B j coucio: Paicl Flow J flavou a ma of dicimiaio (b- ad gluo-aggig) Kimaic fi Agula aalyi Nohig h y, ill huig Facco Padolfi Smiaio Fial, Dooao XXIV Ciclo, 8.. 8
Publicaio PEER REVIEW JOURNALS. CMS Collaboaio, J Egy Calibaio ad Tav Momum Roluio i CMS, ubmid o JINST, ppi: CERN-PH-EP--. F. Padolfi, Paicl flow v coucio a CMS: Commiioig wih Dcmb colliio, popc fo 7 TV, Nuovo Cimo C Vol. (). F. Padolfi, Rc ul o J fom CMS, pocdig o 46 h Rco d Moiod (ubmid, ) 4. J i.9 ad.6 TV pp Colliio, CMS-JME-- CMS PUBLIC ARTICLES. Paicl flow coucio i.9 TV ad.6 TV colliio v i CMS, CMS-PFT-- 6. CMS J Pfomac i pp Colliio a q() = 7 TV, CMS-JME-- 7. Commiioig of h Paicl-Flow coucio i Miimum-Bia ad J Ev fom pp Colliio a 7 TV, CMS-PFT-- 8. Dmiaio of h J Egy Scal i CMS wih pp Colliio a q() = 7 TV, CMS-JME-- 9. J Egy Roluio i CMS a q() = 7 TV, CMS-JME--4. Sach fo h Sadad Modl Higg Boo i h Dcay Chal H llqq a CMS, CMS-HIG--6. Sach fo h Sadad Modl Higg Boo i h Dcay Chal H llqq a CMS, CMS-HIG--7 Facco Padolfi Smiaio Fial, Dooao XXIV Ciclo, 8.. 9
CMS Ial No /. V. Chluu, F. Padolfi, P. Schifdck, M. liki, J Rcoucio Pfomac a CMS, AN--67. F. Padolfi, D. dl R, M. Vouilai, Paicl Flow J Compoiio, AN--. R. Baibidg al., J Commiioig Uig Di-J Ev fom 9 GV ad 6 GV Colliio Daa, AN--9 4. M. Bachi al., Paicl-flow coucio of.9 TV ad.6 TV colliio v i CMS, AN--. F. Padolfi, D. dl R, M. Vouilai, J Rpo ad Roluio Maum wih Phoo+J Ev, AN--76 6. M. Vouilai, F. Padolfi, al., Maum of h icluiv j ad b-j poducio i pp colliio a q() = 7 TV, AN--8 7. F. Padolfi, D. dl R, M. Vouilai, J Rpo ad Roluio Maum wih Phoo+J Ev a q() = 7 TV, AN--4 8. J.-L. Agam al., Commiioig of h Paicl-Flow Rcoucio i Miimum-Bia ad J Ev fom pp Colliio a 7 TV, AN--4 9. M. Vouilai, F. Padolfi, D. dl R, Paicl Flow j calibaio wih γ+j: pt balac ad miig-et pojcio facio, AN--8. M. Vouilai, F. Padolfi, al., Abolu J Egy Cocio Ucaiy, AN--4 Facco Padolfi Smiaio Fial, Dooao XXIV Ciclo, 8..
CMS Ial No /.P. Bha, al., Maum of h Icluiv J Co Scio i pp Colliio a 7 TV, AN--49.F. Padolfi, al., Upda o J Rpo ad Roluio Maum wih Phoo+J Ev a q() = 7 TV, AN-4.S. Bologi, al., Sach fo a SM Higg o BSM Boo H llqq, AN-- 4. M. Vouilai, F. Padolfi, al., Abolu J Egy Cocio ad i Ucaiy wih 6/pb, AN--. F. Padolfi, D. dl R, G. Ogaii, Phoo Idificaio wih Pil-Up: h Io-Efficicy Mhod, AN--97 6.A. Maii, F. Padolfi, D. dl R, M. Vouilai, Quak-Gluo J Dicimiaio hough Paicl Flow J Sucu, AN-- 7.M. Vouilai, F. Padolfi, al., Maum of Icluiv b-j co cio i pp colliio a 7 TV, AN--79 8.S. Bologi, al., Sach fo h Sadad Modl Higg Boo i h Dcay Chal H lq a CMS, AN--88 Facco Padolfi Smiaio Fial, Dooao XXIV Ciclo, 8..
Backup Slid
Paicl Dcio i CMS Facco Padolfi Smiaio Fial, Dooao XXIV Ciclo, 8..
Tadiioal Appoach: Caloim J Aumpio: mo paicl will ach caloim clo o ach oh CONE So ju clu caloim gy dpoi PROS aighfowad fa & uaffcd by v complxiy CONS HCAL oluio pt-dpd po low-pt chagd paicl will b b away ad lo HCAL ECAL Facco Padolfi Smiaio Fial, Dooao XXIV Ciclo, 8.. 4
Th Paicl Flow Ev Rcoucio STANDARD RECONSTRUCTION Subdco-bad Each ubdco couc idpdly of ach oh Tack i h ack Egy dpoi i caloim Hi i h muo pcom Facco Padolfi Smiaio Fial, Dooao XXIV Ciclo, 8..
Th Paicl Flow Ev Rcoucio PARTICLE FLOW Whol v i coucd combiig all ubdco Facco Padolfi Smiaio Fial, Dooao XXIV Ciclo, 8.. 6
Th Paicl Flow Ev Rcoucio PARTICLE FLOW Whol v i coucd combiig all ubdco Tack likd o gy dpoi: chagd hado chagd hado Facco Padolfi Smiaio Fial, Dooao XXIV Ciclo, 8.. 6
Th Paicl Flow Ev Rcoucio muo PARTICLE FLOW Whol v i coucd combiig all ubdco Tack likd o gy dpoi: chagd hado If hi i h muo pcom: muo chagd hado Facco Padolfi Smiaio Fial, Dooao XXIV Ciclo, 8.. 6
Th Paicl Flow Ev Rcoucio muo PARTICLE FLOW ual hado Whol v i coucd combiig all ubdco phoo Tack likd o gy dpoi: chagd hado If hi i h muo pcom: muo chagd hado Lf-ov caloim gy: phoo ad ual hado Facco Padolfi Smiaio Fial, Dooao XXIV Ciclo, 8.. 6
Th Paicl Flow Ev Rcoucio muo PARTICLE FLOW ual hado Whol v i coucd combiig all ubdco phoo Tack likd o gy dpoi: chagd hado If hi i h muo pcom: muo chagd hado Lf-ov caloim gy: phoo ad ual hado Paicl cadida Facco Padolfi Smiaio Fial, Dooao XXIV Ciclo, 8.. 6
Higg S h Scal Nomalizd o Uiy..8.6 CMS Simulaio = 7 TV..6 H () pt Lp H (4) pt Lp.4. H (). + J /W/WW /W Nomalizd o Uiy.. CMS Simulaio = 7 TV H () H (4) H () + J /W/WW /W.4.. Nomalizd o Uiy..8.6.4...8.6.4. Lad Lpo p [GV T CMS Simulaio = 7 TV. pt J H () H (4). pt J H () + J /W/WW /W Lad J p [GV T Nomalizd o Uiy..... 4 6 8 4 Sublad Lpo p [GV T 4 6 8 4 Sublad J p [GV T Facco Padolfi Smiaio Fial, Dooao XXIV Ciclo, 8.. CMS Simulaio = 7 TV H () H (4) H () + J /W/WW /W Sigal v a had Bu w ca do b 7
Agula v. Kimaic Slcio Two big advaag of uig agula lcio: Wok alo a low ma, wh o may kimaic hadl BG hap pvd: idbad Kimaic Cu HliciyLD Cu ) Ev / ( GV/c 4 - CMS Simulaio, fb Hlljj (4) + J + bb + cc /W/WW /W = 7 TV 4 4 6 6 7 Ivaia Ma [GV/c Facco Padolfi Smiaio Fial, Dooao XXIV Ciclo, 8.. ) Ev / ( GV/c 4 8 6 4 8 6 4 - CMS Simulaio, fb Hlljj (4) + J + bb + cc /W/WW /W = 7 TV Sam ad b, bu o bump i BG 4 4 6 6 7 Ivaia Ma [GV/c 8
Backgoud Eimaio Fom Sidbad Ca ly o MC modlig of +mulij Look a mjj idbad: igal-f Sidbad/igal: o idical kimaic Bi-by-bi (α) calig (fom MC) α Faco.. CMS Simulaio = 7 TV -ag Cagoy -ag Cagoy -ag Cagoy Nomalizd o Uiy...8.6.4...8.6.4. CMS Simulaio = 7 TV H (4) + J [GV m jj. idbad: (6 < mjj < 7 GV) ( < mjj < GV) 4 6 7 8 [GV m lljj Facco Padolfi Smiaio Fial, Dooao XXIV Ciclo, 8.. 9
Th Acual Backgoud Pojcio Sidbad mlljj Diibuio Scal wih α Fi Pojcd Sigal mlljj Diibuio Ev / ( 6.4 ).4.4....... MC idbad fi: b-ag Lia 4 6 7 8 zz iv ma Ev / ( 6.4 ) - - -4 b-ag Log 4 6 7 8 zz iv ma Empiical fucio: Fmi-Diac CyalBall Good fi o MC hap Facco Padolfi Smiaio Fial, Dooao XXIV Ciclo, 8.. 4