LPCC - LHC Standard Model Workshop Early Days of Perturbative QCD
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- Marvin Marshall
- 6 years ago
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1 Rk Fel Unverty of Flor LPCC Workho CERN, June 4, 07 LPCC - LHC Stnr Moel Workho Erly Dy of Perturtve QCD Outlne My Story of QCD. Feynmn-Fel Phenomenology: FF: he Blk Bo Moel. FF: he QCD Imrove Prton Moel. My tlk t ICHEP78 okyo n my leture t Bouler79. Fnl-Stte he QCD Imrove Prton Moel: Drell-Yn Leton-Pr Prouton Outgong Prton Rton Unerlyng Event CERN June 4, 07 Outgong Prton he QCD Imrove Prton Moel: Lrge rnvere Momentum Meon n Hron-Hron Collon. he QCD Imrove Prton Moel: Jet Prouton n Hron-Hron Collon. From 7 GeV π 0 to ev Jet. Phr Intl-Stte Rton Rk Fel Flor Pge Unerlyng Event
2 he Qurk Moel he Eghtfol Wy My Story of QCD 3 Y u SU3 flvor rlet I Before we knew the rton were urk n gluon! Non-ntertng rton! he Prton Moel momentum P Prton LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge
3 he Qurk Moel he Eghtfol Wy My Story of QCD 3 Y u SU3 flvor rlet I Before we knew the rton were urk n gluon! Non-ntertng rton! he Prton Moel momentum P LPCC Workho CERN, June 4, 07 Prton Prton urk, nt-urk, n glue! Stll non-ntertng rton! he Nïve Prton Moel u u momentum Qurk P & nt-urk Rk Fel Flor Pge 3
4 My Story of QCD he Qurk Moel he Eghtfol Wy 3 Y u g g 0 g g g 0 g 0 g 0 0 g g g 0 g g 0 r g I SU3 flvor rlet Prton Moel Perturtve QCD! Intertng urk, nt-urk, n gluon! Outgong Prton he QCD Imrove Prton Moel Unerlyng Event Phr Intl-Stte Rton Unerlyng Event Before we knew the rton were urk n gluon! Non-ntertng rton! he Prton Moel momentum P LPCC Workho CERN, June 4, 07 Prton Outgong Prton Prton urk, nt-urk, n glue! Stll non-ntertng rton! he Nïve Prton Moel Fnl-Stte Rton u u momentum Qurk P & nt-urk Rk Fel Flor Pge 4
5 My Story of QCD he Qurk Moel he Eghtfol Wy 3 Y u g g 0 g g g 0 g 0 g 0 0 g g g 0 g g 0 r g QCD heory! I SU3 flvor rlet Prton Moel Perturtve QCD! Intertng urk, nt-urk, n gluon! Outgong Prton he QCD Imrove Prton Moel Unerlyng Event Phr Intl-Stte Rton Unerlyng Event Before we knew the rton were urk n gluon! Non-ntertng rton! he Prton Moel momentum P LPCC Workho CERN, June 4, 07 Prton Outgong Prton Prton urk, nt-urk, n glue! Stll non-ntertng rton! he Nïve Prton Moel Fnl-Stte Rton u u momentum Qurk P & nt-urk Rk Fel Flor Pge 5
6 owr n Unertnng of Hron-Hron Collon Feynmn-Fel Phenomenology Feynmn n Fel From 7 GeV/ π 0 to ev Jet. he erly y of tryng to unertn n multe hronhron ollon. Unerlyng Event Outgong Prton Phr Intl-Stte Rton nt Unerlyng Event Outgong Prton Fnl-Stte Rton LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge 6
7 owr n Unertnng of Hron-Hron Collon Feynmn-Fel Phenomenology t ht! Feynmn n Fel From 7 GeV/ π 0 to ev Jet. he erly y of tryng to unertn n multe hronhron ollon. Unerlyng Event Outgong Prton Phr Intl-Stte Rton nt Unerlyng Event Outgong Prton Fnl-Stte Rton LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge 7
8 he Feynmn-Fel Fel Dy FF: Qurk Elt Stterng Soure of Hgh rnvere Momentum Meon, R. D. Fel n R. P. Feynmn, Phy. Rev. D5, FFF: Correlton mong Prtle n Jet Proue wth Lrge rnvere Moment, R. P. Feynmn, R. D. Fel n G. C. Fo, Nul. Phy. B8, FF: Prmeterton of the roerte of Qurk Jet, R. D. Fel n R. P. Feynmn, Nul. Phy. B36, F: Cn Etng Hgh rnvere Momentum Hron Eerment e Interrete y Contemorry Quntum Chromoynm Ie?, R. D. Fel, Phy. Rev. Letter 40, FFF: Quntum Chromoynm roh for the Lrge rnvere Momentum Prouton of Prtle n Jet, R. P. Feynmn, R. D. Fel n G. C. Fo, Phy. Rev. D8, FW: QCD Moel for e e - nnhlton, R. D. Fel n S. Wolfrm, Nul. Phy. B3, LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge 8
9 he Feynmn-Fel Fel Dy Feynmn-Fel Jet Moel FF: Qurk Elt Stterng Soure of Hgh rnvere Momentum Meon, R. D. Fel n R. P. Feynmn, Phy. Rev. D5, FFF: Correlton mong Prtle n Jet Proue wth Lrge rnvere Moment, R. P. Feynmn, R. D. Fel n G. C. Fo, Nul. Phy. B8, FF: Prmeterton of the roerte of Qurk Jet, R. D. Fel n R. P. Feynmn, Nul. Phy. B36, F: Cn Etng Hgh rnvere Momentum Hron Eerment e Interrete y Contemorry Quntum Chromoynm Ie?, R. D. Fel, Phy. Rev. Letter 40, FFF: Quntum Chromoynm roh for the Lrge rnvere Momentum Prouton of Prtle n Jet, R. P. Feynmn, R. D. Fel n G. C. Fo, Phy. Rev. D8, FW: QCD Moel for e e - nnhlton, R. D. Fel n S. Wolfrm, Nul. Phy. B3, My t grute tuent! LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge 9
10 he Nïve Prton Moel he Feynmn-Fel Fel Dy FF: Qurk he Nïve Elt Prton Stterng Moel Soure of Hgh rnvere Momentum Meon, R. D. Fel n R. P. Feynmn, Phy. Rev. D5, FFF: Correlton mong Prtle n Jet Proue wth Lrge rnvere Moment, he Nïve R. Prton P. Feynmn, Moel R. D. Fel n G. C. Fo, Nul. Phy. B8, FF: Prmeterton of the roerte of Qurk Jet, R. D. Fel n R. P. Feynmn, Nul. Phy. B36, F: Cn Etng Hgh rnvere Momentum Hron Eerment e Interrete y Contemorry Quntum Chromoynm Ie?, R. D. Fel, Phy. Rev. Letter 40, FFF: Quntum Chromoynm roh for the Lrge rnvere Momentum Prouton of Prtle n Jet, R. P. Feynmn, R. D. Fel n G. C. Fo, Phy. Rev. D8, FW: QCD Moel for e e - nnhlton, R. D. Fel n S. Wolfrm, Nul. Phy. B3, My t grute tuent! Feynmn-Fel Jet Moel LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge 0
11 he Nïve Prton Moel he Feynmn-Fel Fel Dy FF: Qurk he Nïve Elt Prton Stterng Moel Soure of Hgh rnvere Momentum Meon, R. D. Fel n R. P. Feynmn, Phy. Rev. D5, FFF: Correlton mong Prtle n Jet Proue wth Lrge rnvere Moment, he Nïve R. Prton P. Feynmn, Moel R. D. Fel n G. C. Fo, Nul. Phy. B8, FF: QCD Prmeterton Imrove Prton Moelof the roerte of Qurk Jet, R. D. Fel n R. P. Feynmn, Nul. Phy. B36, F: Cn Etng Hgh rnvere Momentum Hron Eerment e Interrete QCD Imrove y Contemorry Prton Moel Quntum Chromoynm Ie?, R. D. Fel, Phy. Rev. Letter 40, FFF: Quntum Chromoynm roh for the Lrge rnvere Momentum Prouton of Prtle n Jet, R. P. Feynmn, R. D. Fel n G. QCD Imrove Prton Moel C. Fo, Phy. Rev. D8, FW: QCD Moel for e e - nnhlton, R. D. Fel n S. Wolfrm, Nul. Phy. B3, My t grute tuent! Feynmn-Fel Jet Moel LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge
12 he Nïve Prton Moel Eletron-Potron nnhlton: e e X e e γ urk nt-urk Vrtul Photon e - e γ Born erm ^ t e ^ e - Inelt Eletron Stterng: e e X e - e - Born erm e e ^ t e - e - γ ^ urk urk LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge
13 he Nïve Prton Moel Eletron-Potron nnhlton: e e X e e γ urk nt-urk Vrtul Photon e - e γ Born erm ^ t e ^ e - Qurk ntertng wth hoton eletromgnet nterton Inelt Eletron Stterng: e e X e - e - Born erm e e ^ t e - e - γ ^ urk urk LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge 3
14 Hron Nïve Prton Moel Eletron-Potron nnhlton µ µ - r γ R e e σ e e σ e Hron e µ µ 3 nf e γ* e e - Color Ftor e e - Count the Numer of Qurk Flvor: Meure the rto R n verfy tht there re nee three olor of urk. 3 Flvor e LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge 4
15 Nïve Prton Moel Eletron-Potron nnhlton Count the Numer of Qurk Flvor: Meure the rto R n verfy tht there re nee three olor of urk. he t re from ORSY, FESCI, NOVOSIBIRSK, SLC-LBL, DSP, CLEO, DHHM, CELLO, JDE, MRK J, PLUO, n SSO. Comle y B. Wk Flvor: e u 3 LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge 5
16 r Center-of-M Frme Nïve Prton Moel Eletron-Potron nnhlton Hronton wo Jet Fnl Stte r r r r rr r Short tme Smll tne Hron Jet r Hron Jet γ* r γ* Short tme Smll tne Long tme Long tne Qurk Frgmentton Funton: Meure the rolty of fnng hron of tye h rryng the frton of the rent urk momentum. e e h X D 0 h h D 0 h Very unlkely tht rton wll gve ll t momentum to ngle hron! Hron e r γ e - γ e e - E h CM LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge 6
17 r Center-of-M Frme Nïve Prton Moel Eletron-Potron nnhlton Hronton wo Jet Fnl Stte r r r r rr r Short tme Smll tne Hron Jet r Hron Jet γ* r γ* Short tme Smll tne Long tme Long tne Qurk Frgmentton Funton: Meure the rolty of fnng hron of tye h rryng the frton of the rent urk momentum. e e h X D 0 h h D 0 h Very unlkely tht rton wll gve ll t momentum to ngle hron! Hron e r γ e - γ e e - E h CM Oerve y the JDE etetor t PER t E CM 30 GeV 978. LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge 7
18 e - e - γ Eletron momentum e e 0 G ξp momentum P ξ LPCC Workho CERN, June 4, 07 Prton Moel: DIS ~ ~ ~ m ~ ~ ~ ξp ~ ξ P ~ ' ξp ~ ξ M Q ξm ν 0 e G e e F, Q F ξm ν m ξ M Q >> Q Q Prton Moel: Vrtul hoton wth 4-momentum ntertng wth rton of tye wth m m n eletr hrge e rryng frton ξ of the roton 4-momentum P. M roton m Q ξ Mν ft movng roton olleton of rton onttuent of the roton eh rryng ertn frton ξ of the roton momentum, P. Prove Q lrge! Dee Inelt Stterng DIS momentum P the numer of rton of tye wthn ft movng hron of tye wth frton of momentum ξ ξp etween ξ n ξ ξ. Slng: Pret tht the DIS truture funton re not funton of oth ν n Q, ut re mly funton of the rton lng vrle,. Momentum Sum Rule: he um of the 0 G momentum of ll the onttuent mut eul one. ll Prton lo ret: 0 R DIS, Q 0 Rk Fel Flor Pge 8 Q >>M
19 e - e - γ Eletron momentum e e 0 G ξp momentum P ξ LPCC Workho CERN, June 4, 07 Prton Moel: DIS ~ ~ ~ m ~ ~ ~ ξp ~ ξ P ~ ' ξp ~ ξ M Q ξm ν 0 e G e e F, Q F ξm ν m ξ M Q >> Q Q Prton Moel: Vrtul hoton wth 4-momentum ntertng wth rton of tye wth m m n eletr hrge e rryng frton ξ of the roton 4-momentum P. M roton m Q ξ Mν Prove Q lrge! Dee Inelt Stterng DIS ft movng roton olleton of onttuent we not know the rton were momentum of the roton eh rryng ertn frton ξ of the P roton urk, momentum, P. nt-urk, n gluon! the numer We of lerne rton of th tye from wthn DIS ft movng nhron of tye wth frton of momentum ξ ξp etween ξ n ξ ξ. Slng: Pret tht the DIS truture funton re not funton of oth ν n Q, ut re mly funton of the rton lng vrle,. Momentum Sum Rule: he um of the In the erly y of the Prton Moel e e - eerment! 0 G momentum of ll the onttuent mut eul one. ll Prton lo ret: 0 R DIS, Q 0 Rk Fel Flor Pge 9 Q >>M
20 momentum P u Inelt Eletron- Stterng: e 4 F 9 9 Nïve Prton Moel: DIS u ft movng roton olleton of rton urk, nt-urk, n gluon eh rryng ertn frton of the roton momentum, P. e e G G G G G G K u u Net Numer of Qurk: he net numer of u urk n roton n the net numer of urk G G 0 0 G G u u X G G w 9 0 DIS Eerment : Oerve romte lng n meure urk truton. Fn tht only out one-hlf of the roton momentum rre y the hrge urk: n f G G 0. 5 he remnng momentum mut e rre y eletrlly neutrl rton.e. gluon. 0 LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge 0
21 Nïve Prton Moel: DIS Qurk hve frtonl eletr hrge: By omrng ee nelt eletron-roton tterng wth ee nelt neutrno-roton tterng one n etermne the eletr hrge of the urk. Inelt Eletron- Stterng: F e e e X 0 G G G G 0 0 G G K u u e - e - DIS e γ Q em Inelt Neutrno- Stterng: ν F ν e e X G G G G u u e - DIS ν W Q wek 0 0 G G K ν e LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge
22 Nïve Prton Moel: DIS Qurk hve frtonl eletr hrge: By omrng ee nelt eletron-roton tterng wth ee nelt neutrno-roton tterng one n etermne the eletr hrge of the urk. Inelt Eletron- Stterng: F e e e X 0 G Rk Fel 9760 G G G 0 0 G G K u Prton Dtruton Funton PDF! u e - e - DIS e γ Q em Inelt Neutrno- Stterng: ν F ν e e X G G G G u u e - DIS ν W Q wek 0 0 G G K ν e LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge
23 he Nïve Prton Moel Inelt Neutrno Stterng: ν e e X ν e e - Born erm ν ^ t ν e e e ' urk' W e - ^ urk Drell-Yn Muon-Pr Prouton: µ X µ µ µ µ µ µ - Born erm ^ t γ LPCC Workho CERN, June 4, 07 µ - urk nt-urk ^ Rk Fel Flor Pge 3
24 he Nïve Prton Moel Inelt Neutrno Stterng: ν e e X ν e e - Drell-Yn Muon-Pr Prouton: µ X µ µ Born erm ν e e ' ^ t e - ν e W ^ Qurk ntertng wth W & Z wek nterton urk' urk Qurk ntertng wth hoton eletromgnet nterton µ µ µ µ - Born erm ^ t γ LPCC Workho CERN, June 4, 07 µ - urk nt-urk ^ Rk Fel Flor Pge 4
25 he Nïve Prton Moel Lrge rnvere Meon Prouton n Hron-Hron Collon B h X h Qurk-Qurk Elt Stterng -to- Stterng B Born erm ^ t? ^ Wht o I o now?? Qurk ntertng wth urk trong nterton LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge 5
26 he Nïve Prton Moel Lrge rnvere Meon Prouton n Hron-Hron Collon B h X h Qurk-Qurk Elt Stterng -to- Stterng B Born erm ^ t? ^ Wht o I o now?? Qurk ntertng wth urk trong nterton Fel-Feynmn Blk-Bo Moel LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge 6
27 Hron-Hron Collon FF 977 Wht hen when two hron olle t hgh energy? Mot of the tme the hron ooe through eh other n fll rt.e. no hr tterng. he outgong rtle ontnue n roughly the me reton ntl roton n ntroton. Hron??? Hron Prton-Prton Stterng Outgong Prton Soft Collon no lrge trnvere momentum Oonlly there wll e lrge trnvere momentum meon. Queton: Where t ome from? Hron Hron We ume t me from urk-urk elt tterng, ut we not know how to lulte t! Outgong Prton hgh P meon LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge 7
28 Hron-Hron Collon FF 977 Wht hen when two hron olle t hgh energy? Hron Feynmn uote from FF??? he moel we hll hooe not oulr one, Mot of the tme the hron ooe o tht we wll not ulte too muh of the through eh other n work fll rt of other.e. who re mlrly nlyng no hr tterng. he vrou outgong moel e.g. onttuent nterhnge rtle ontnue n roughly moel, multerherl the me moel, et.. We hll Prton-Prton Stterng reton ntl roton ume n tht the hgh P Outgong Prton rtle re from ntroton. ret hr ollon etween onttuent urk n the nomng rtle, whh Oonlly there wll frgment e lrge or e own Hron nto everl hron. trnvere momentum meon. Queton: Where t ome from? Hron Soft Collon no lrge trnvere momentum Hron We ume t me from urk-urk elt tterng, ut we not know how to lulte t! Blk-Bo Moel Outgong Prton hgh P meon LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge 8
29 Qurk Dtruton Funton etermne from ee-nelt leton-hron ollon Qurk-Qurk Blk-Bo Bo Moel FF 977 No gluon! Qurk-Qurk Cro-Seton Unknown! Deteremne from hron-hron ollon. Qurk Frgmentton Funton etermne from e e - nnhlton LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge 9
30 Qurk Dtruton Funton etermne from ee-nelt leton-hron ollon Qurk-Qurk Blk-Bo Bo Moel FF 977 Feynmn uote from FF Beue of the nomlete knowlege of our funton ome thng n e rete wth more ertnty thn other. hoe eermentl reult tht re not well rete n e ue u to etermne thee funton n greter etl to ermt etter reton of further eerment. Our er wll e t long eue we wh to u th nterly n etl. No gluon! Qurk-Qurk Cro-Seton Unknown! Deteremne from hron-hron ollon. Qurk Frgmentton Funton etermne from e e - nnhlton LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge 30
31 Qurk-Qurk Blk-Bo Bo Moel Pret rtle rto FF 977 Pret nree wth nreng CM energy W Bem-Bem Remnnt Pret overll event toology FFF er 977 LPCC Workho CERN, June 4, 07 7 GeV/ π 0! Rk Fel Flor Pge 3
32 Qurk-Qurk Blk-Bo Bo Moel Pret rtle rto FF 977 Pret nree wth nreng CM energy W he egnnng of the unerlyng event! Bem-Bem Remnnt Pret overll event toology FFF er 977 LPCC Workho CERN, June 4, 07 7 GeV/ π 0! Rk Fel Flor Pge 3
33 QCD roh: Qurk & Gluon FFF 978 Prton Dtruton Funton Q eenene rete from QCD Qurk & Gluon Cro-Seton Clulte from QCD LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge 33
34 Qurk & Gluon Frgmentton Funton Q eenene rete from QCD QCD roh: Qurk & Gluon FFF 978 Prton Dtruton Funton Q eenene rete from QCD Qurk & Gluon Cro-Seton Clulte from QCD LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge 34
35 Qurk & Gluon Frgmentton Funton Q eenene rete from QCD QCD roh: Qurk & Gluon FFF 978 Prton Dtruton Funton Q eenene rete from QCD Feynmn uote from FFF We nvetgte whether the reent eermentl ehvor of meon wth lrge trnvere momentum n hron-hron ollon ontent wth the theory of untum-hromoynm QCD wth ymtot freeom, t let the theory now rtlly unertoo. Qurk & Gluon Cro-Seton Clulte from QCD LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge 35
36 LPCC Workho CERN, June 4, 07 ICHEP 978 okyo Dynm of Hgh Energy Reton Rk Fel Clforn Inttute of ehnology Plenry tlk reente t the XIX Interntonl Conferene on Hgh Energy Phy, okyo, Jn he QCD Prton Moel roh - Outlne of lk he Effetve Strong Interton Coulng Contnt, α Q, n the M Sle Λ. Qurk n Gluon Dtruton wthn Hron: Sle Brekng. nly of e n µ Dt. nly of F n F 3 n Neutrno Proee. Muon-Pr Prouton n Collon. QCD Ftorton Contnt Pee. Lrge Muon-Pr Prouton. Slng n µ µ - X. Qurk n Gluon Frgmentton Funton: Sle Brekng. Gluon Jet. Lrge Prouton of Meon n Jet n Collon. Sle Brekng Effet: Eσ/ 3. Correlton Evene for Gluon. he Jet Cro Seton.. Look to the Future. π 0 X t W 500 GeV. Lrge Chrm Prouton. γγ Jet Jet n e e - e e - JetJet. hree Jet: e e - rjet n JetJetJetX.. R. D. Fel ICHEP78 Rk Fel Flor Pge 36
37 LPCC Workho CERN, June 4, 07 ICHEP 978 okyo Dynm of Hgh Energy Reton Rk Fel Clforn Inttute of ehnology Plenry tlk reente t the XIX Interntonl Conferene on Hgh Energy Phy, okyo, Jn he QCD Prton Moel roh - Outlne of lk he Effetve Strong Interton Coulng Contnt, α Q, n the M Sle Λ. Qurk n Gluon Dtruton wthn Hron: Sle Brekng. nly of e n µ Dt. nly of F n F 3 n Neutrno Proee. Muon-Pr Prouton n Collon. QCD Ftorton Contnt Pee. Lrge Muon-Pr Prouton. Slng n µ µ - X. Qurk n Gluon Frgmentton Funton: Sle Brekng. Gluon Jet. Lrge Prouton of Meon n Jet n Collon. Sle Brekng Effet: Eσ/ 3. Correlton Evene for Gluon. he Jet Cro Seton.. Look to the Future. π 0 X t W 500 GeV. Lrge Chrm Prouton. γγ Jet Jet n e e - e e - JetJet. hree Jet: e e - rjet n JetJetJetX.. R. D. Fel ICHEP78 Rk Fel Flor Pge 37
38 LPCC Workho CERN, June 4, 07 ICHEP 978 okyo Dynm of Hgh Energy Reton Rk Fel Clforn Inttute of ehnology Plenry tlk reente t the XIX Interntonl Conferene on Hgh Energy Phy, okyo, Jn he QCD Prton Moel roh - Outlne of lk he Effetve Strong Interton Coulng Contnt, α Q, n the M Sle Λ. Qurk n Gluon Dtruton wthn Hron: Sle Brekng. nly of e n µ Dt. nly of F n F 3 n Neutrno Proee. Muon-Pr Prouton n Collon. QCD Ftorton Contnt Pee. Lrge Muon-Pr Prouton. Slng n µ µ - X. Qurk n Gluon Frgmentton Funton: Sle Brekng. Gluon Jet. Lrge Prouton of Meon n Jet n Collon. Sle Brekng Effet: Eσ/ 3. Correlton Evene for Gluon. he Jet Cro Seton.. Look to the Future. π 0 X t W 500 GeV. Lrge Chrm Prouton. γγ Jet Jet n e e - e e - JetJet. hree Jet: e e - rjet n JetJetJetX.. R. D. Fel ICHEP78 Rk Fel Flor Pge 38
39 Drell-Yn Muon-Pr Prouton µ X µ Born µ µ - LPCC Workho CERN, June 4, 07 QCD Imrove Prton Moel Born erm µ µ ^ t µ urk Inlue Leng Orer QCD Correton Orer α nnhlton Comton µ - µ γ * gluon µ - µ γ * gluon γ ^ µ - nt-urk R Born mltue nnhlton ^ t C R γ ^ t γ γ 0 Rk Fel Flor Pge 39 ^ Comton ^ g gluon g ^ t gluon γ γ ^ t g ^ γ ^ ^ γ g g γ g gluon gluon
40 Drell-Yn Muon-Pr Prouton µ X µ Born µ µ - LPCC Workho CERN, June 4, 07 QCD Imrove Prton Moel Born erm µ µ ^ t µ urk Inlue Leng Orer QCD Correton Orer α nnhlton Comton µ - µ γ * γ µ - gluon µ γ * gluon gluon V g g Vrtul Correton gluon γ g g γ γ ^ g g µ - nt-urk R gluon Born mltue nnhlton ^ t C R γ ^ t γ γ 0 Rk Fel Flor Pge 40 ^ Comton ^ g gluon g ^ t gluon γ γ ^ t g ^ γ ^ ^ γ g g γ g gluon gluon
41 R. Fel ICHEP78 R. D. Fel ICHEP78 Rk Fel 978 he truton n trnvere momentum,, of the µ µ - r roue n ollon t W 7.4 GeV together wth the QCD erturtve reton. he Comton n nnhlton ontruton re gven y the he n otte urve, reetvely. LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge 4
42 Rel Gluon Emon Orer α σ DY R LPCC Workho CERN, June 4, 07 QCD Imrove Prton Moel B γ X B γ X σ σ C, Mµµ, yµµ,, M, y,,,, µµ µµ M y µµ µµ M y M y Born erm Plu Vrtul Gluon Emon Orer α σ σ DY V, M µµ, y µµ σ B M µµ B γ X V µµ yµµ otl Cro-Seton Orer α DY tot µµ, M µµ B γ X σ B V DY, Mµµ, yµµ, M, µµ yµµ σr, Mµµ, yµµ, M y µµ µµ, y Fnte Infnte Infnte otl Cro-Seton Leng Orer DY DY σ totlo σtot LO, Mµµ, yµµ, M, µµ yµµ M y P µµ 4πα em P 9M DIS µµ µµ µµ µµ nf DIS DIS DIS DIS DIS,, Mµµ e G, M GB, M G, M GB, M µµ µµ µµ µµ µµ, µµ, M [ ] Rk Fel Flor Pge 4
43 momentum Intrn Prton k Prton Intrn Prmorl rnvere Momentum: u u k From the unertnty rnle one eet tht the rton wll hve ome ntrn rmorl trnvere momentum. h 97.3MeV fm 00 MeV fm Eet ntrn k P MeV/! rnvere e of the roton. Jet Se: lo eet tht the hron wthn jet wll hve ome ntrn trnvere momentom. wo Jet Fnl Stte: e e - to Jet Jet Hron Jet Short tme Smll tne r Hron Jet k γ* Eet ntrn k h MeV/! LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge 43
44 Prmorl k Smerng f 4σ k e 4πσ rmorl < k > rmorl k rmorl σ rmorl Intrn Prmorl trnvere momentum! r r r k y- k - DY DY [ σr, M, y, σv, M, y ] k, M, y,, f k δ DY σ mer µµ µµ σ rmorl µµ µµ µµ µµ σ DY mer f σ DY mer σ, M DY R µµ [ ] DY DY σ, M y R µµ, µµ, σ, M, y δ V µµ µµ, M, M, y µµ µµ µµ,, y, y µµ µµ,, σ, rmorl, σ [ ] DY f k f k f σ, M, y σ DY R, M µµ, y, Fnte Fnte µµ [ f k f ] tot µµ µµ k LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge 44
45 R. Fel ICHEP78 Erly Eermentl et of QCD R. D. Fel ICHEP78 Rk Fel 978 LPCC Workho CERN, June 4, 07 he truton n trnvere momentum,, of the µ µ - r roue n ollon t W 7.4 GeV together wth the QCD erturtve reton fole wth Gun rmorl rton momentum etrum wth <k > 600 MeV ol urve. he he urve reult from the rton rmorl moton only wth no erturtve QCD term. Rk Fel Flor Pge 45
46 R. Fel ICHEP78 Erly Eermentl et of QCD R. D. Fel ICHEP78 Lrge rmorl k! Rk Fel 978 LPCC Workho CERN, June 4, 07 he truton n trnvere momentum,, of the µ µ - r roue n ollon t W 7.4 GeV together wth the QCD erturtve reton fole wth Gun rmorl rton momentum etrum wth <k > 600 MeV ol urve. he he urve reult from the rton rmorl moton only wth no erturtve QCD term. Rk Fel Flor Pge 46
47 R. Fel ICHEP78 he t re from D. C. Horn et l., Phy. Rev. Letter 36, n 37, ; S. W. Her et l., Phy. Rev. Letter 39, ; W. R. Inne et l., Phy. Rev. Letter 39, ; lo ee the tlk y L. Leermn t th onferene. Erly Eermentl et of QCD W 7.4 GeV W 9.4 GeV Energy eenene of the lrge tl eete for -> µµ- X from the QCD erturtve reton fole wth Gun rmorl rton momentum etrum wth <k > 600 MeV. Dt on the energy eenene of the < > of the µµ- r n roton-nuleon ollon whh nte tht the truton eomng roer the energy nree. LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge 47
48 LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge 48 N Nïve Prton Moel ve Prton Moel 0 u t B h B h h h B B P P P P u P P P P t P P P P ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ B hx Eternl Vrle neglet the m of, B, n h -to- Stterng t ^ ^, ~,,, ~ ~ ~ Internl Vrle neglet me B h h B u P P u t P P t P P / / ~ ~ ~ ~ ~ ~ / / ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ h B P P P ~ ~ ~ ~ ~ ~ Internl-Eternl Conneton t u / / W / B h tu tu / 0
49 LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge 49 B h N Nïve Prton Moel ve Prton Moel B hx Eternl Vrle 0 G W / E W m h B X h B td t t G G t,, σ σ 0 B G 0 h D 0 u t Internl Vrle u u t t / / / / E t 3 π mn mn /,,,, mn mn t t D G G E h B m X h B σ π θ σ y L E y L E e t e u / / y y e u e t,, t t y y y,,
50 QCD Prton-Prton Stterng Lrge rnvere Meon Prouton n Hron-Hron Collon B h X h Inlue ll he QCD -to- Prton-Prton Proee Orer α Prton urk, nt-urk, & gluon B QCD effetve oulng 3 4 σ t j j Q, t πα j j j j , t g g gg g g g g g g g g LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge 50
51 LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge 5 Prton Moel Slng Prton Moel Slng Qurk-Qurk Elt Stterng j j t ^ ^ gluon g g, t j j 9 4 t u j j Sum over fnl-tte n n olor. verge over ntl-tte n n olor. 0 u t tu / / 4 t u f u t u t u u t u t u tu , t u tu t u t t πα πα σ mn mn,,,,,,, mn mn m m X h B F f P E θ α θ σ j h B D G G P j,, / tn / / tn m m θ θ Prton Moel Slng Contnt t fe θ m n! rove the PDF n the frgmentton funton le n α ontnt /
52 j j Prton Moel Slng Lrge rnvere Meon Prouton n Hron-Hron Collon Inlue ll he QCD -to- Prton-Prton Proee Orer α 5 g g 3 4 j j j j gg g g g g g g g g σ k t πα, t f 4 k k to 9 4 σ E / tn θ tn θ / m B h X ll 3 m / / mn, mn, θ m 9 k F k, θ m Prton Moel Slng Contnt t fe θ m n! rove the PDF n the frgmentton funton le n α ontnt LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge 5
53 Hgh π-meon Prouton Eσ / 3 Hgh Dt 977 o θ 90 he FNL t oen ure re from J. W. Cronn et l. CP Collorton, Phy. Rev. D 975; D. ntreyn et l., Phy. Rev. Letter ; Phy. Rev. Letter he FNL t t W 9.4 GeV ol trngle re from G. Donlon et l., Phy Rev. Letter he FNL t oen rle re from D. C. Crey et l., Ferml Reort FNL-PUB-750-EXP 975. he ISR t ol ot re from B. ler et l. BS Collorton, Nul. Phy. B he ISR t roe re from F. W. Buer et l., Nul. Phy. B W / W 8 3 Eσ / 0. W 9.4 GeV GeV.9GeV / W 53 GeV GeV 5.3GeV / LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge 53
54 Hgh π-meon Prouton Eσ / 3 Hgh Dt 977 o θ 90 he FNL t oen ure re from J. W. Cronn et l. CP Collorton, Phy. Rev. D 975; D. ntreyn et l., Phy. Rev. Letter ; Phy. Rev. Letter he FNL t t W 9.4 GeV ol trngle re from G. Donlon et l., Phy Rev. Letter he FNL t oen rle re from D. C. Crey et l., Ferml Reort FNL-PUB-750-EXP 975. he ISR t ol ot re from B. ler et l. BS Collorton, Nul. Phy. B he ISR t roe re from F. W. Buer et l., Nul. Phy. B Eσ / 0. W / W Yke!! he t ehvng lke / W 9.4 GeV 0. 8 not / 4 t fe GeV.9GeV / W 53 GeV GeV 5.3GeV / LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge 54
55 FF: Blk-Bo Bo Moel FF 977 σ E π B h X 3, Blk σ t B σ E Bo, θ m G GB D h, mn mn, u,,, u,, σ h X BlkBo FF t FF, t f / t u N,, θm F N, t 4 0 µ 3 t GeV σ t Blk Bo QCD N FF N 4 CIM N 4, θ 3 m t, t Nïve Prton-Prton Blk-Bo Moel σ E B h X FF µ GeV,, θm 8 6 F, θ m LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge 55
56 CIM Moel Conttuent Interhnge Moel CIM π Meon-Qurk Stterng π π u-urk π -urk u-urk Meon wthn the roton! u-urk u-urk D. Sver, S. J. Broky, n R. Blnkeneler, Phy. Reort 3C, 976; R. Blnkeneler, S. J. Broky, n J. F. Gunon, he Mgntue of Lrge rnvere Momentum Cro Seton, SLC-PUB σ E,, θm 8 π X CIM F, 3 CIM θm LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge 56
57 LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge 57 QCD Imrove Prton Moel QCD Imrove Prton Moel Lrge rnvere Meon Prouton n Hron-Hron Collon X h B, t t πα σ Qurk-Qurk Elt Stterng Inlue Leng Orer QCD -to- Prton-Prton Proee Orer α t ^ ^ gluon g g t ^ ^ gluon g g j j t ^ ^ gluon g g, t j j, t 9 4 t u j j ut t u t u g g g g g g g g g g g g Prton urk, nt-urk, & gluon Sum over fnl-tte n n olor. verge over ntl-tte n n olor. B h
58 QCD Imrove Prton Moel B hx h D e e h DIS DIS G, Q GB, Q B, Q QCD effetve oulng Ue the renormlton grou mrove PDF from DIS n renormlton grou mrove frgmentton funton from e e - nnhlton n the runnng QCD oulng! W E m / W / tn θ tn θ m m / / σ t σ E π B h X 3,, θ m mn.0. 0 DIS DIS e e G, Q GB, Q D h, Q, mn mn Q, t πα, t σ t mn, t / LPCC Workho CERN, June 4, 07 Q eenent PDF! Q eenent frgmentton! Rk Fel Flor Pge 58
59 QCD Imrove Prton Moel Renormlton Grou Imrove h e efrgmentton! B hx D h DIS DIS G, Q GB, Q B, Q QCD effetve oulng Ue the Renormlton renormlton Grou grou Imrove mrove PDF! PDF from DIS n renormlton grou mrove frgmentton funton from e e - nnhlton n the runnng QCD oulng! W E m / W / tn θ tn θ m m / / σ t σ E π B h X 3,, θ m mn.0. 0 DIS DIS e e G, Q GB, Q D h, Q, mn mn Q, t πα, t σ t mn, t / Runnng QCD Effetve Coulng! LPCC Workho CERN, June 4, 07 Q eenent PDF! Q eenent frgmentton! Rk Fel Flor Pge 59
60 j j 4 σ E / tn θ tn θ B h X ll 3 m m / / j mn QCD Imrove Prton Moel Lrge rnvere Meon Prouton n Hron-Hron Collon Inlue ll he QCD -to- Prton-Prton Proee Orer α 5 g g 3 4 j j / j, mn , θ gg g m 9 k F, k g g g g g g g, θ m σ k t QCD Imrove Prton Moel πα Q, t 4 f k k to 9 Ue the renormlton grou mrove PDF from DIS n renormlton grou mrove frgmentton funton from e e - nnhlton n the runnng QCD oulng! Nïve rton moel lng now roken! Pole Choe for the Sle Q Q 4 tu t u QCD effetve oulng LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge 60
61 R. Fel ICHEP78 QCD Imrove Prton Moel Erly Eermentl et of QCD Eσ / 3 F 978 FFF 978 R. D. Fel ICHEP78 Comron of QCD moel normle olutely wth t on lrge on routon n roton-roton ollon t W 9.4 n 53 GeV wth θ m 90 o. he ot-he n ol urve re the reult efore n fter merng, reetvely, wth Λ 0.4 GeV/ n <k > rmorl 848 MeV/ n the he urve re wth Λ 0.6 GeV/. he ontruton from urk-urk, urk-nturk, n nturk-nturk.e. no gluon hown y the otte urve. LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge 6
62 R. Fel ICHEP78 Prmorl k h g effet t low n low W where the QCD Imrove ro Prton eton Moel very tee! Erly Eermentl et of QCD Eσ / 3 F 978 FFF 978 R. D. Fel ICHEP78 Lrge rmorl k! Comron of QCD moel normle olutely wth t on lrge on routon n roton-roton ollon t W 9.4 n 53 GeV wth θ m 90 o. he ot-he n ol urve re the reult efore n fter merng, reetvely, wth Λ 0.4 GeV/ n <k > rmorl 848 MeV/ n the he urve re wth Λ 0.6 GeV/. he ontruton from urk-urk, urk-nturk, n nturk-nturk.e. no gluon hown y the otte urve. LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge 6
63 QCD Imrove Prton Moel R. Fel ICHEP Eσ / F 978 R. D. Fel ICHEP78 4 / 8 LPCC Workho CERN, June 4, 07 Dt on 4 tme Eσ/ 3 for lrge on routon t θ m 90 o n fe 0. veru omre wth the reton wth olute normlton of moel tht nororte ll the feture eete from QCD. he ot-he n ol urve re the reult efore n fter merng wth <k > rmorl 848 MeV, reetvely, wth Λ 0.4 GeV/ n the he urve re the reult of ung Λ 0.6 GeV/ fter merng. he otte urve 4 / 8. Rk Fel Flor Pge 63
64 QCD Imrove Prton Moel R. Fel ICHEP Eσ / F 978 R. D. Fel ICHEP78 rohe ontnt t lrge! 4 / 8 LPCC Workho CERN, June 4, 07 Dt on 4 tme Eσ/ 3 for lrge on routon t θ m 90 o n fe 0. veru omre wth the reton wth olute normlton of moel tht nororte ll the feture eete from QCD. he ot-he n ol urve re the reult efore n fter merng wth <k > rmorl 848 MeV, reetvely, wth Λ 0.4 GeV/ n the he urve re the reult of ung Λ 0.6 GeV/ fter merng. he otte urve 4 / 8. Rk Fel Flor Pge 64
65 QCD Imrove Prton Moel R. Fel ICHEP Eσ / FFF 978 R. D. Fel ICHEP78 Dt on 8 tme Eσ/ 3 for lrge on routon t θ m 90 o n fe 0., 0.35, n 0.5 veru omre wth the reton wth olute normlton of moel tht nororte ll the feture eete from QCD. he othe n ol urve re the reult efore n fter merng wth <k > rmorl 848 MeV, reetvely, wth Λ 0.4 GeV/ n the he urve re the reult of ung Λ 0.6 GeV/ fter merng. Reent t from ISR trngle, oen rle how evton from horontl trght lne / 8 ehvor eete from QCD. LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge 65
66 R. Fel ICHEP78 QCD Imrove Prton Moel Erly Eermentl et of QCD 8 3 Eσ / FFF 978 rohe 4 he ISR t trngle re from CERN-Colum-Ofor- Rokefeller Eerment CCOR, reorte y L. D Lelln the Workho on Future ISR Eerment, Setemer 4-, 977. he ISR t oen rle re from. G. Clrk et l., Phy Letter 74B lo, tlk reente y. G. Clrk t th onferene. ehvor t lrge! R. D. Fel ICHEP78 Dt on 8 tme Eσ/ 3 for lrge on routon t θ m 90 o n fe 0., 0.35, n 0.5 veru omre wth the reton wth olute normlton of moel tht nororte ll the feture eete from QCD. he othe n ol urve re the reult efore n fter merng wth <k > rmorl 848 MeV, reetvely, wth Λ 0.4 GeV/ n the he urve re the reult of ung Λ 0.6 GeV/ fter merng. Reent t from ISR trngle, oen rle how evton from horontl trght lne / 8 ehvor eete from QCD. LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge 66
67 R. Fel ICHEP78 QCD Imrove Prton Moel Erly QCD Preton 8 3 Eσ / R. Fel ICHEP78 R. D. Fel ICHEP78 he ehvor of 8 tme the 90 o ngle π 0 ro eton, Eσ/ 3, t 0.05 veru lulte from the QCD roh wth Λ 0.4 GeV/ ol urve n Λ 0.6 GeV/ he urve. he two low t ont re t 53 n 63 GeV. he reton re ftor of tme lrger thn the flt horontl / 8 etrolton to W 500 GeV 000 GeV. LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge 67
68 CDF Run Dt Chrge Prtle Prouton σ / yφ ± h X Meurement of Prtle Prouton n Inluve Dfferentl Cro Seton n -ntroton Collon t.96 ev, CDF Collorton, Phy. Rev. D79, h σ W.96 ev GeV 49GeV / ± σ E , 49GeV / 0 yφ σ y σ y φ 9 m/ GeV/ 0 π h h E σ π , GeV/ µ GeV/ 49GeV / 6 m/ GeV/ LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge 68
69 R. Fel BND W 960 mng! I w rght! ftor of 0, LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge 69
70 LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge 70 B QCD QCD Jet Jet Prouton Prouton B X, Q G DIS, Q G DIS B, e e h Q D δ mn,,,,,, mn mn t t Q G Q G E DIS B DIS m X B σ δ π θ σ Lrge rnvere Momentum Prton Prouton,,,,,,.0 3 mn t t Q G Q G E DIS B DIS m X B σ π θ σ QCD Imrove Prton Moel,,,,,, mn mn t t Q G Q G E DIS B DIS m X B σ δ π θ σ
71 R. Fel ICHEP78 QCD Imrove Prton Moel Erly QCD Preton R. D. Fel ICHEP78 LPCC Workho CERN, June 4, GeV/ Jet! Comron of the reult on the 90 o π 0 ro eton, Eσ/ 3, from the QCD roh wth Λ 0.4 GeV/ ol urve n the urk-urk lk-o rton moel of FF otte urve. Both moel gree wth the t t W 53 GeV. he QCD roh reult n muh lrger ro eton thn the FF moel t W 500 n 000 GeV. he FF reult t 000 GeV not hown re only lghtly lrger thn t 500 GeV. lo hown re the ro eton for roung jet t 90 o ve y 000 rete y the QCD roh he urve n the FF moel ot-he urve Rk Fel Flor Pge 7
72 R. Fel ICHEP78 QCD Imrove Prton Moel Erly Eermentl et of QCD R. D. Fel ICHEP78 he FNL t E60 re from C. Bromerg et l., Phy Rev Letter ; C. Bromerg et l., CL to e ulhe n Nul. Phy.. FFF 978 LPCC Workho CERN, June 4, 07 6 GeV/ Jet! he FNL t E395 re from the Ferml-Lehgh-Pennylvn- Wonn Collorton, tlk gven y W. Selove t th onferene. Comron of the jet n ngle π 0 ro eton meure t 00 GeV W 9.4 GeV n θ m 90 o. he jet t re from two FNL eerment, E60 n E395, where jet efne the um of ll the rtle nto ther reetve etetor. lo hown the QCD reton for the ro eton of roung rton urk, nturk, or gluon t W 9.4 GeV n θ m 90 o. Rk Fel Flor Pge 7
73 Hgh P Jet Feynmn, Fel, & Fo 978 CDF 006 Pret lrge jet ro-eton 30 GeV/! 600 GeV/ Jet! Feynmn uote from FFF t the tme of th wrtng, there tll no hr untttve tet of QCD. n mortnt tet wll ome n onneton wth the henomen of hgh P ue here. LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge 73
74 Bouler 979 he NO vne Inttute on Quntum Flvorynm, Quntum Chromoynm, n Unfe heore, hel t the Unverty of Coloro, Bouler, Coloro, July 9 7, 979. NO vne Inttute Sere B: Phy, Volume 4, Plenum Pre, 980 Leturer G. ltrell. J. Bur C. De r S. Ell R. D. Fel D. Gro C. H. Llewellyn Smth J. We Rk Fel Bouler 979 Jmme Fel Bouler 979 LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge 74
75 R. Fel Bouler 979 CIM veru the QCD Imrove Prton Moel π - π ± X π ± D e e ± g π, Q G gluon π - DIS π g, Q gluon gluon gluon G DIS g, Q t low the omnte QCD u-roe gluon routon whh frgment eully nto π n π -! Dret CIM Contruton π - -urk π - -urk π - π - π - -urk π - u-urk -urk -urk -urk o roue n outgong π n the CIM roh one mut fn π wthn the nomng π - or the nomng roton wth mll rolty! LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge 75
76 R. Fel Bouler 979 CIM veru the QCD Imrove Prton Moel π - π ± X π ± he t re from H. J. Frh, Pree Meurement e e of the Hgh D ± Sngle Prtle Setr n, Q π - Collon g π t Ferml E58, tlk reente t the XIV Moron Conferene G gluon π - DIS π g, Q gluon gluon gluon G DIS g, Q t low the omnte QCD u-roe gluon routon whh frgment eully nto π n π -! Dret CIM Contruton π - -urk π - -urk π - π - π - -urk π - u-urk -urk -urk -urk o roue n outgong π n the CIM roh one mut fn π wthn the nomng π - or the nomng roton wth mll rolty! LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge 76
77 Bouler 979 R. Fel Bouler ev ev 400 GeV/ Jet! he NO vne Inttute on Quntum Flvorynm, Quntum Chromoynm, n Unfe heore, hel t the Unverty of Coloro, Bouler, Coloro, July 9 7, 979. LPCC Workho CERN, June 4, GeV/ Jet! Rk Fel Flor Pge 77
78 R. Fel BND 06 R. Fel Bouler 979 CDF ev ev 7 Yer! 400 GeV/ Jet! σ 4 E Jet X 0 µ / GeV 3 σ π y E σ 3 σ y Jet X n / GeV LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge 78
79 R. Fel BND 06 R. Fel Bouler 979 CDF ev mng! I w rght! ev 7 Yer! 400 GeV/ Jet! σ 4 E Jet X 0 µ / GeV 3 σ π y E σ 3 σ y Jet X n / GeV LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge 79
80 LPCC Workho CERN, June 4, 07 ICHEP 978 okyo Rk Fel Plenry tlk reente t the XIX Interntonl Conferene on Hgh Energy Phy, okyo, Jn he QCD Prton Moel roh Summry & Conluon No evene gnt the erturtve QCD rton moel roh. Lot of ulttve uort for the roh: e e X, µ µ X, ν µ - X. µµ- X, π X, Jet X. ee - JetJet X, ν µ-jet X. he lton of the theory re tll ute rue n houl e onere ulttve frt uee. R. D. Fel ICHEP78 Mny of the mot rmt n efntve reton of the theory hve not yet een oerve eermentlly. Our knowelege of wht the theory ret mrovng n oon two yer we houl hve more unttve ture.e. reton to y 0% level. Cre mut e tken n ung the erturtve et of the theory only where they ly.e. lrge Q. here re n mny e lrge orreton to the ymtot form t low Q.e. /Q effet, non-erturtve effet whh nnot t reent e lulte. h very etng n fun tme. We hve theory n t u to ll of u to onfrm tht t nee the orret theory of trong nterton. Rk Fel Flor Pge 80
81 LPCC Workho CERN, June 4, 07 ICHEP 978 okyo Rk Fel Plenry tlk reente t the XIX Interntonl Conferene on Hgh Energy Phy, okyo, Jn he QCD Prton Moel roh Summry & Conluon No evene gnt the erturtve QCD rton moel roh. Lot of ulttve uort for the roh: e e X, µ µ X, ν µ - X. µµ- X, π X, Jet X. ee - JetJet X, ν µ-jet X. QCD not jut nother theory. If t not the orret erton of nture, he lton of theory re tll rue n houl onere then t wll e ute ome tme efore nother ulttve frt uee. nte theory emerge. R. D. Fel ICHEP78 Mny of the mot rmt n efntve reton of the theory hve not yet een oerve eermentlly. - R. Fel, ICHEP78 Our knowelege of wht the theory ret mrovng n oon two yer we houl hve more unttve ture.e. reton to y 0% level. Cre mut e tken n ung the erturtve et of the theory only where they ly.e. lrge Q. here re n mny e lrge orreton to the ymtot form t low Q.e. /Q effet, non-erturtve effet whh nnot t reent e lulte. h very etng n fun tme. We hve theory n t u to ll of u to onfrm tht t nee the orret theory of trong nterton. Rk Fel Flor Pge 8
82 hree-jet Fnl Stte: Not oerve untl fter Bouler 979! QCD Imrove Prton Moel Eletron-Potron nnhlton Hron Jet hree Jet Fnl Stte Short tme Smll tne r γ* Gluon Hron Jet Hron Jet Oerve y the JDE etetor t PER t E CM 30 GeV 980?. LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge 8
83 QCD Imrove Prton Moel 7 GeV π 0 ev Jet ev Jet! Fel-Feynmn 977 CMS FFF GeV/ Jet! 7 GeV/ π 0! LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge 83
84 7 GeV π0 ev Jet QCD Imrove Prton Moel Rk & Jmme Weng Novemer 4, 966 Lttle Chel of the Wet, L Veg Rk & Jmme Celerton Novemer 4, 06 Lttle Chel of the Wet, L Veg ev Jet! CMS Fel-Feynmn GeV/ Jet! FFF GeV/ π0! LPCC Workho CERN, June 4, 07 Rk Fel Flor Pge 84
85 7 GeV π0 ev Jet QCD Imrove Prton Moel Rk & Jmme Weng Novemer 4, 966 Lttle Chel of the Wet, L Veg Rk & Jmme Celerton Novemer 4, 06 Lttle Chel of the Wet, L Veg ev Jet! CMS Fel-Feynmn GeV/ Jet! FFF GeV/ LPCC Workho CERN, June 4, 07 π0! Fmly, Chlren, & Grnhlren Novemer 4, 06 Lttle Chel of the Wet, L Veg Rk Fel Flor Pge 85
The Great American Solar Eclipse Physics Conference Early Days of Perturbative QCD
Rk Fel Unverty of Flor Outlne My Story of QCD. Feynmn-Fel Phenomenology: 973-983. FF: he Blk Bo Moel. FF: he QCD Imrove Prton Moel. lk t ICHEP78 okyo n leture t Bouler79. Solr Ele Phy Conferene Mou, ugut
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