BND Summer School in Particle Physics 2016 Early Experimental Tests of QCD

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h Fnmn-Fl Fl D 973-983 Fnmn-Fl J ol FF: Qrk l Srng Sor of Hgh rnvr omnm on R. D. Fl n R.. Fnmn h. Rv. D5 590-66 977. FFF: Corrlon mong rl n J ro wh rg rnvr omn R.. Fnmn R. D. Fl n G. C. Fo Nl. h. 8-65 977. FF: rmron of h ror of Qrk J R. D. Fl n R.. Fnmn Nl. h. 36-76 978. F: Cn ng Hgh rnvr omnm Hron rmn Inrr Conmorr Qnm Chromonm I? R. D. Fl h. Rv. r 0 997-000 978. FFF: Qnm Chromonm roh for h rg rnvr omnm roon of rl n J R.. Fnmn R. D. Fl n G. C. Fo h. Rv. D8 330-333 978. FW: QCD ol for - nnhlon R. D. Fl n S. Wolfrm Nl. h. 3 65-8 983. gr n! ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g 3

h Nïv ron ol h Fnmn-Fl Fl D 973-983 FF: Qrk h Nïv l ron Srng ol Sor of Hgh rnvr omnm on R. D. Fl n R.. Fnmn h. Rv. D5 590-66 977. FFF: Corrlon mong rl n J ro wh rg rnvr omn h Nïv R. ron. Fnmn ol R. D. Fl n G. C. Fo Nl. h. 8-65 977. FF: QCD rmron Imrov ron olof h ror of Qrk J R. D. Fl n R.. Fnmn Nl. h. 36-76 978. F: Cn ng Hgh rnvr omnm Hron rmn Inrr QCD Imrov Conmorr ron ol Qnm Chromonm I? R. D. Fl h. Rv. r 0 997-000 978. FFF: Qnm Chromonm roh for h rg rnvr omnm roon of rl n J R.. Fnmn R. D. Fl n G. QCD Imrov ron ol C. Fo h. Rv. D8 330-333 978. FW: QCD ol for - nnhlon R. D. Fl n S. Wolfrm Nl. h. 3 65-8 983. gr n! Fnmn-Fl J ol ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g

ND Smmr Shool nwr Smr 6 06 ICH 978 oko Dnm of Hgh nrg Ron Rk Fl Clforn In of hnolog lnr lk rn h XIX Inrnonl Confrn on Hgh nrg h oko Jn h QCD ron ol roh - Oln of lk h ffv Srong Inron Colng Conn α Q n h Sl Λ. Qrk n Glon Dron whn Hron: Sl rkng. nl of n µ D. nl of F n F 3 n Nrno ro. on-r roon n Collon. QCD Foron Conn. rg on-r roon. Slng n µ µ - X. Qrk n Glon Frgmnon Fnon: Sl rkng. Glon J. rg roon of on n J n Collon. Sl rkng ff: σ 3. Corrlon vn for Glon. h J Cro Son.. ook o h Fr. π 0 X W 500 GV. rg Chrm roon. γγj J n - - JJ. hr J: - rj n JJJX.. R. D. Fl ICH78 Rk Fl Flor g 5

ND Smmr Shool nwr Smr 6 06 ICH 978 oko Dnm of Hgh nrg Ron Rk Fl Clforn In of hnolog lnr lk rn h XIX Inrnonl Confrn on Hgh nrg h oko Jn h QCD ron ol roh - Oln of lk h ffv Srong Inron Colng Conn α Q n h Sl Λ. Qrk n Glon Dron whn Hron: Sl rkng. nl of n µ D. nl of F n F 3 n Nrno ro. on-r roon n Collon. QCD Foron Conn. rg on-r roon. Slng n µ µ - X. Qrk n Glon Frgmnon Fnon: Sl rkng. Glon J. rg roon of on n J n Collon. Sl rkng ff: σ 3. Corrlon vn for Glon. h J Cro Son.. ook o h Fr. π 0 X W 500 GV. rg Chrm roon. γγj J n - - JJ. hr J: - rj n JJJX.. R. D. Fl ICH78 Rk Fl Flor g 6

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QCD ook QCD ook lon of rrv QCD on-wl lhng Comn h vn ook rogrm Fronr n h Volm No. 77 989. ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g 8

QCD ook lon of rrv QCD on-wl lhng Comn h vn ook rogrm Fronr n h Volm No. 77 989. O of rn ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g 9

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Collr Coorn hx Cnr-of- Frm - - h m - h - fn o h m. h -ln h ln of h rng wh h -ln ng h rnvr ln. θ m h nr-of-m rng ngl n φ h mhl ngl. h rnvr momnm of rl gvn oθ m. h longnl momnm of rl gvn nθ m. h r of rl wh m m log - Srng ngl m h h θ m Srng ln -ln - h o-r η of rl η log n θ log η m 0 m m - mhl ngl φ h rnvr ln -ln - oθ nθ η 0 3 m θ m 90 o 0 o 5 o 6 o o m m ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g

ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g 3 N Nïv ron ol v ron ol µ µ - - - Drll-Yn ro 970: µ µ - X orn rm γ γ µ µ µ - µ- 3 3 πα µ µ γ σ m 0 0 0 0 τ µ µ µ µ r r τ 0 0 µ µ γ σ σ µ µ G G X 9 0 m DY πα τ σ [ ] nf G G G G 0 0 0 0 0 0 µ µ r r 0 τ τ rnvr omnm of h on-r m nomng ron hv no rnvr momnm! ongnl omnm of h on-r 0 G 0 G

3 DY 0 τ F τ ND Smmr Shool nwr Smr 6 06 Nïv ron ol Drll-Yn ro 970: µ µ - X m nomng ron hv no rnvr momnm! R of on-r 0 G log µ µ - log τ 0 G τ τ σ µ µ X log σ τ DY σ DY πα m 0 F τ 9 0 τ σ - - orn rm πα 9 ron ol Slng τ 0 0 G G m τ 0 τ σ γ µ µ Conn f τ n Rk Fl Flor g τ τ rov h DF l!

Drll-Yn on-r roon µ X roon µ orn µ µ - ND Smmr Shool nwr Smr 6 06 QCD Imrov ron ol roon orn rm µ µ ^ µ rk Inl ng Orr QCD Corron Orr α roon nnhlon roon Comon µ - µ γ * roon γ µ - glon µ γ * roon glon glon V g g Vrl Corron glon γ g g γ γ ^ g g µ - n-rk R glon orn ml nnhlon ^ C R γ ^ γ γ 0 Rk Fl Flor g 5 ^ Comon ^ g glon g ^ glon γ γ ^ g ^ γ ^ ^ γ g g γ g glon glon

R. Fl ICH78 h r from D. C. Horn l. h. Rv. r 36 39 976 n 37 37 976; S. W. Hr l. h. Rv. r 39 35 977; W. R. Inn l. h. Rv. r 39 0 977; lo h lk. rmn h onfrn. [ G Q G Q G Q G Q ] nf Q σ DY O W 0 F τ 0 Q W Rk Fl 978 τ τ τ 0 0 τ τ U Q h l! Q τ 0.8 τ 0. 55 5 GV! QCD Imrov ron ol U h rnormlon gro mrov DF from! ng orr QCD ron of h -mon m rm 0 n W 7. GV ng h rnormlon gro mrov rk n n-rk ron. ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g 6

R. Fl ICH78 Rk Fl 978 Drll-Yn on-r roon o h r from D. C. Horn l. h. Rv. r 36 39 976 n 37 37 976; S. W. Hr l. h. Rv. r 39 35 977; W. R. Inn l. h. Rv. r µ 39 0 977; lo h lk. rmn h onfrn. µ X [ G Q G Q G Q G Q ] nf Q σ DY O W 0 F τ 0 Q τ τ τ W 0 0 τ τ 000 GV! Q U Q h l! τ 0.8 τ 0. 55 5 GV! QCD Imrov ron ol U h rnormlon gro mrov DF from! ng orr QCD ron of h -mon m rm 0 n W 7. GV ng h rnormlon gro mrov rk n n-rk ron. ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g 7

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ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g 9 Knm Knm γ*µ µ - X ngl h m of n Cnr-of- Frm X θ - - γ γ γ γ µ µ - 0 0 0 0 log log log R of on-r τ τ τ τ 0 τ τ τ

ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g 0 N Nïv ron ol v ron ol rnl Vrl ngl h m of n -o- Srng ^ ^ γ γ γ γ γ γ Inrnl Vrl ngl h m of n γ γ γ Inrnl-rnl Connon γ*x γ γ γ γ µ µ - log R of on-r τ τ τ τ τ τ τ

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QCD Dffrnl Cro-Son rg rnvr omnm on-r roon Orr α µ µ X nnhlon γ g σ γ glon γ glon 8 αα m 7 R ^ ^ g τ ^ σ 8 7 g ^ α αm τ σ 8α α 7 m τ τ τ τ { } τ τ { } τ τ τ τ τ ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g

QCD Dffrnl Cro-Son rg rnvr omnm on-r roon Orr α µ µ X nnhlon γ g σ γ glon γ glon 8 αα m 7 R ^ ^ g τ ^ σ 8 7 g ^ α αm τ σ 8α α 7 m τ τ τ τ { } τ τ { } τ τ τ τ τ ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g 5

γ µ µ - ND Smmr Shool nwr Smr 6 06 Nïv ron ol rg rnvr omnm on-r roon Orr α 0 G 0 G DY σ 0 αf τ F mn ron Fl 0 0 C 0 τ nf nf DY σ C 0 αfc τ µ µ X 0 0 0 0 [ G G G G ] Rk Fl Flor g 6 0 0 0 0 [ G G G G ] g g.0 8α m 0 τ τ 7 mn τ τ τ τ ron ol Slng Conn f τ n! rov h DF l n α onn

γ µ µ - ND Smmr Shool nwr Smr 6 06 Nïv ron ol rg rnvr omnm on-r roon Orr α 0 G 0 G DY σ 0 αf τ F mn ron Fl 0 0 C 0 τ nf nf DY σ C 0 αfc τ µ µ X 0 0 0 0 [ G G G G ] Rk Fl Flor g 7 0 0 0 0 [ G G G G ] g g.0 8α m 0 τ τ 7 mn τ τ τ τ ron ol Slng Conn f τ n! rov h DF l n α onn

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γ µ µ - ron ol Slng rg rnvr omnm on-r roon Orr α µ µ X DY σ 0 αf τ σ DY 0 πα F τ W τ W W DY 3 σ 0 πα F τ 3 3 5 W τ W W τ 3 DY 5 σ 8πα 0 W W F τ Conn f τ 3 τ n! ron ol Slng rov h DF l n α onn ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g 9

ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g 30 QCD Imrov ron ol QCD Imrov ron ol rg rnvr omnm on-r roon Orr α X µ µ τ Q F Q X γ τ α σ τ τ [ ] nf Q G Q G Q G Q G Q [ ] nf g g C Q G Q G Q G Q G Q mn τ ron Fl m Q Q F 7 8.0 mn τ τ α τ Q F Q C X C γ τ α σ QCD Imrov ron ol Nïv ron mol lng now rokn! U h rnormlon gro mrov DF from n h rnnng QCD olng! Q U Q h l!

ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g 3 QCD Imrov ron ol QCD Imrov ron ol rg rnvr omnm on-r roon Orr α X µ µ τ Q F Q X γ τ α σ τ τ [ ] nf Q G Q G Q G Q G Q [ ] nf g g C Q G Q G Q G Q G Q mn τ ron Fl m Q Q F 7 8.0 mn τ τ α τ Q F Q C X C γ τ α σ QCD Imrov ron ol Nïv ron mol lng now rokn! U h rnormlon gro mrov DF from n h rnnng QCD olng! Q U Q h l! Rnormlon Gro Imrov DF! Rnnng QCD ffv Colng!

R. Fl ICH78 R. D. Fl ICH78 Rk Fl 978 h ron n rnvr momnm of h µ µ - r ro n ollon W 7. GV oghr wh h QCD rrv ron. h Comon n nnhlon onron r gvn h h n o rv rvl. ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g 3

Rl Glon mon Orr α σ DY R ND Smmr Shool nwr Smr 6 06 QCD Imrov ron ol γ X γ X σ σ C orn rm l Vrl Glon mon Orr α σ σ DY V σ γ X V ol Cro-Son Orr α DY o γ X σ V DY σr Fn Infn Infn ol Cro-Son ng Orr DY DY σ oo σo O πα m 9 nf G G G G [ ] Rk Fl Flor g 33

roon momnm Inrn ron k ron Inrn rmorl rnvr omnm: k From h nrn rnl on h h ron wll hv om nrn rmorl rnvr momnm. h 97.3V fm 00 V fm nrn k 00 300 V! rnvr of h roon. J S: lo h h hron whn j wll hv om nrn rnvr momnom. wo J Fnl S: - o J J Hron J Shor m Smll n r Hron J k γ* nrn k h 00 300 V! ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g 3

rmorl k Smrng f σ k πσ rmorl < k > rmorl k rmorl σ rmorl Inrn rmorl rnvr momnm! r r r k - k - DY DY [ σr σv ] k f k δ DY σ mr σ rmorl σ DY mr f σ DY mr σ DY R [ ] DY DY σ R σ δ V σ rmorl σ [ ] DY f k f k f σ σ DY R Fn Fn [ f k f ] o k ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g 35

R. Fl ICH78 R. D. Fl ICH78 Rk Fl 978 ND Smmr Shool nwr Smr 6 06 h ron n rnvr momnm of h µ µ - r ro n ollon W 7. GV oghr wh h QCD rrv ron fol wh Gn rmorl ron momnm rm wh <k > 600 V ol rv. h h rv rl from h ron rmorl moon onl wh no rrv QCD rm. Rk Fl Flor g 36

R. Fl ICH78 rl rmnl of QCD R. D. Fl ICH78 rg rmorl k! Rk Fl 978 ND Smmr Shool nwr Smr 6 06 h ron n rnvr momnm of h µ µ - r ro n ollon W 7. GV oghr wh h QCD rrv ron fol wh Gn rmorl ron momnm rm wh <k > 600 V ol rv. h h rv rl from h ron rmorl moon onl wh no rrv QCD rm. Rk Fl Flor g 37

R. Fl ICH78 nrg nn of h lrg l for -> µµ- X from h QCD rrv ron fol wh Gn rmorl ron momnm rm wh <k > 600 V. ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g 38

R. Fl ICH78 h r from D. C. Horn l. h. Rv. r 36 39 976 n 37 37 976; S. W. Hr l. h. Rv. r 39 35 977; W. R. Inn l. h. Rv. r 39 0 977; lo h lk. rmn h onfrn. nrg nn of h lrg l for -> µµ- X from h QCD rrv ron fol wh Gn rmorl ron momnm rm wh <k > 600 V. D on h nrg nn of h < > of h µµ- r n roon-nlon ollon whh n h h ron omng ror h nrg nr. ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g 39

R. Fl ICH78 h r from D. C. Horn l. h. Rv. r 36 39 976 n 37 37 976; S. W. Hr l. h. Rv. r 39 35 977; W. R. Inn l. h. Rv. r 39 0 977; lo h lk. rmn h onfrn. rl rmnl of QCD W 7. GV W 9. GV nrg nn of h lrg l for -> µµ- X from h QCD rrv ron fol wh Gn rmorl ron momnm rm wh <k > 600 V. D on h nrg nn of h < > of h µµ- r n roon-nlon ollon whh n h h ron omng ror h nrg nr. ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g 0

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R. Fl ICH78 W 5 σ R. Fl ICH78 rl QCD ron R. Fl ICH78 Smrng rk nïv ron mol lng! R. D. Fl ICH78 l rkng of h n W 5 σ for ->µµ- X 0 n 0. from QCD wh Λ 0. GV. h ol h rv r h rl fr for mrng wh ron rmorl rnvr momnn wh <k > 600 V. h o rv wol f rmorl moon lon wr ronl for h mon r. Slng wol r h n o nnn of W f τ n. ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g

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ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g 5 Knm Knm hx h ngl h m of n h Cnr-of- Frm h h X θ - - 0 0 0 0 h 0 h h h h θ n log log log R of h θ o o n θ θ n log m θ η

ngl m -o- Srng Cnr-of- Frm ^ ^ o θ o θ ND Smmr Shool nwr Smr 6 06 -o- Knm o θ o θ ^ ^ θ ^ θ ^ o θ n θ o θ n θ - - 0 0 n θ 0 oθ 0 n θ o θ Rk Fl Flor g 6 0 0 θ n n θ 0 o θ n θ

ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g 7 N Nïv ron ol v ron ol 0 h h h h hx rnl Vrl ngl h m of n h -o- Srng ^ ^ Inrnl Vrl ngl m h h h Inrnl-rnl Connon W h 0

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ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g 50 ron ol Slng ron ol Slng Qrk-Qrk l Srng j j ^ ^ glon g g j j 9 j j Sm ovr fnl- n n olor. vrg ovr nl- n n olor. 0 9 9 9 f 9 9 πα πα σ mn mn.0.0 0 3 mn mn m m X h F f θ α θ σ j h D G G j 0 0 0 0 n n m m θ θ ron ol Slng Conn f θ m n! rov h DF n h frgmnon fnon l n α onn

ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g 5 ron ol Slng ron ol Slng Qrk-Qrk l Srng j j ^ ^ glon g g j j 9 j j Sm ovr fnl- n n olor. vrg ovr nl- n n olor. 0 9 9 9 f 9 9 πα πα σ mn mn.0.0 0 3 mn mn m m X h F f θ α θ σ j h D G G j 0 0 0 0 n n m m θ θ ron ol Slng Conn f θ m n! rov h DF n h frgmnon fnon l n α onn

j j ron ol Slng rg rnvr on roon n Hron-Hron Collon Inl ll h QCD -o- ron-ron ro Orr α 5 g g 3 j j j j 6 7 8 9 gg g g g g g g g g σ k πα f k k o 9 σ n θ n θ m h X ll 3 m mn mn θ m 9 k F k θ m ron ol Slng Conn f θ m n! rov h DF n h frgmnon fnon l n α onn ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g 5

j j ron ol Slng rg rnvr on roon n Hron-Hron Collon Inl ll h QCD -o- ron-ron ro Orr α 5 g g 3 j j j j 6 7 8 9 gg g g g g g g g g σ k πα f k k o 9 σ n θ n θ m h X ll 3 m mn mn θ m 9 k F k θ m ron ol Slng Conn f θ m n! rov h DF n h frgmnon fnon l n α onn ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g 53

Hgh π-on roon σ 3 Hgh D 977 o θ 90 h FN on r r from J. W. Cronn l. C Colloron h. Rv. D 975; D. nrn l. h. Rv. r 38 977; h. Rv. r 38 977. h FN W 9. GV ol rngl r from G. Donlon l. h Rv. r 36 976. h FN on rl r from D. C. Cr l. Frml Ror FN-U-750-X 975. h ISR ol o r from. lr l. S Colloron Nl. h. 00 975. h ISR ro r from F. W. r l. Nl. h. 06 976. W W 8 3 σ 0. W 9. GV 0. 0.9. GV.9GV W 53 GV 0. 0.53 GV 5.3GV ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g 5

Hgh π-on roon σ 3 Hgh D 977 o θ 90 h FN on r r from J. W. Cronn l. C Colloron h. Rv. D 975; D. nrn l. h. Rv. r 38 977; h. Rv. r 38 977. h FN W 9. GV ol rngl r from G. Donlon l. h Rv. r 36 976. h FN on rl r from D. C. Cr l. Frml Ror FN-U-750-X 975. h ISR ol o r from. lr l. S Colloron Nl. h. 00 975. h ISR ro r from F. W. r l. Nl. h. 06 976. 8 3 σ 0. W W Yk!! h hvng lk W 9. GV 0. 8 no f. 0.9. GV.9GV W 53 GV 0. 0.53 GV 5.3GV ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g 55

FF: lk-o o ol FF 977 σ π h X 3 lk σ σ o θ m.0. 0 0 0 0 G G D h mn mn σ h X lko FF FF f N θm F N 0 µ 3 6 6.3 GV σ θ 3 m lk o Nïv ron-ron lk-o ol σ h X FF 3 6.3 0 µ GV θm 8 6 F θ m ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g 56

FF: lk-o o ol FF 977 σ π h X 3 lk σ σ o θ m.0. 0 0 0 0 G G D h mn mn σ h X lko FF FF f N θm F N 0 µ 3 6 6.3 GV σ lk o QCD N FF N CI N θ 3 m Nïv ron-ron lk-o ol σ h X FF 3 6.3 0 µ GV θm 8 6 F θ m ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g 57

CI ol Conn Inrhng ol CI π on-qrk Srng π roon π -rk roon π -rk -rk on whn h roon! -rk -rk D. Svr S. J. rok n R. lnknlr h. Ror 3C 976; R. lnknlr S. J. rok n J. F. Gnon h gn of rg rnvr omnm Cro Son SC-U-057 977 σ θm 8 π X CI F 3 CI θm ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g 58

ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g 59 QCD Imrov ron ol QCD Imrov ron ol rg rnvr on roon n Hron-Hron Collon X h πα σ Qrk-Qrk l Srng Inl ng Orr QCD -o- ron-ron ro Orr α ^ ^ glon g g ^ ^ glon g g j j ^ ^ glon g g j j 9 j j 7 8 9 g g g g g g g g g g g g ron rk n-rk & glon Sm ovr fnl- n n olor. vrg ovr nl- n n olor. h

QCD Imrov ron ol hx h D h G Q G Q Q QCD ffv olng U h rnormlon gro mrov DF from n rnormlon gro mrov frgmnon fnon from - nnhlon n h rnnng QCD olng! W m W n θ n θ m m σ σ π h X 3 θ m mn.0. 0 G Q G Q D h Q mn mn Q πα σ mn ND Smmr Shool nwr Smr 6 06 Q nn DF! Q nn frgmnon! Rk Fl Flor g 60

QCD Imrov ron ol Rnormlon Gro Imrov h Frgmnon! hx D h G Q G Q Q QCD ffv olng U h Rnormlon rnormlon Gro gro Imrov mrov DF! DF from n rnormlon gro mrov frgmnon fnon from - nnhlon n h rnnng QCD olng! W m W n θ n θ m m σ σ π h X 3 θ m mn.0. 0 G Q G Q D h Q mn mn Q πα σ mn Rnnng QCD ffv Colng! ND Smmr Shool nwr Smr 6 06 Q nn DF! Q nn frgmnon! Rk Fl Flor g 6

j j σ n θ n θ h X ll 3 m m j mn QCD Imrov ron ol rg rnvr on roon n Hron-Hron Collon Inl ll h QCD -o- ron-ron ro Orr α 5 g g 3 j j j mn 6 7 8 9 θ gg g m 9 k F k g g g g g g g θ m σ k QCD Imrov ron ol πα Q f k k o 9 U h rnormlon gro mrov DF from n rnormlon gro mrov frgmnon fnon from - nnhlon n h rnnng QCD olng! Nïv ron mol lng now rokn! ol Cho for h Sl Q Q QCD ffv olng ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g 6

R. Fl ICH78 QCD Imrov ron ol rl rmnl of QCD σ 3 F 978 FFF 978 R. D. Fl ICH78 Comron of QCD mol norml oll wh on lrg on roon n roon-roon ollon W 9. n 53 GV wh θ m 90 o. h o-h n ol rv r h rl for n fr mrng rvl wh Λ 0. GV n <k > rmorl 88 V n h h rv r wh Λ 0.6 GV. h onron from rk-rk rk-nrk n nrk-nrk.. no glon hown h o rv. ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g 63

R. Fl ICH78 rmorl k h g ff low n low W whr h QCD Imrov ro ron on ol vr! rl rmnl of QCD σ 3 F 978 FFF 978 R. D. Fl ICH78 rg rmorl k! Comron of QCD mol norml oll wh on lrg on roon n roon-roon ollon W 9. n 53 GV wh θ m 90 o. h o-h n ol rv r h rl for n fr mrng rvl wh Λ 0. GV n <k > rmorl 88 V n h h rv r wh Λ 0.6 GV. h onron from rk-rk rk-nrk n nrk-nrk.. no glon hown h o rv. ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g 6

QCD Imrov ron ol R. Fl ICH78 3 σ F 978 R. D. Fl ICH78 D on m σ 3 for lrg on roon θ m 90 o n f 0. vr omr wh h ron wh ol normlon of mol h noror ll h fr from QCD. h o-h n ol rv r h rl for n fr mrng wh <k > rmorl 88 V rvl wh Λ 0. GV n h h rv r h rl of ng Λ 0.6 GV fr mrng. h o rv 8. ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g 65

QCD Imrov ron ol R. Fl ICH78 3 σ F 978 R. D. Fl ICH78 8 ND Smmr Shool nwr Smr 6 06 D on m σ 3 for lrg on roon θ m 90 o n f 0. vr omr wh h ron wh ol normlon of mol h noror ll h fr from QCD. h o-h n ol rv r h rl for n fr mrng wh <k > rmorl 88 V rvl wh Λ 0. GV n h h rv r h rl of ng Λ 0.6 GV fr mrng. h o rv 8. Rk Fl Flor g 66

QCD Imrov ron ol R. Fl ICH78 3 σ F 978 R. D. Fl ICH78 roh onn lrg! 8 ND Smmr Shool nwr Smr 6 06 D on m σ 3 for lrg on roon θ m 90 o n f 0. vr omr wh h ron wh ol normlon of mol h noror ll h fr from QCD. h o-h n ol rv r h rl for n fr mrng wh <k > rmorl 88 V rvl wh Λ 0. GV n h h rv r h rl of ng Λ 0.6 GV fr mrng. h o rv 8. Rk Fl Flor g 67

QCD Imrov ron ol R. Fl ICH78 8 3 σ FFF 978 R. D. Fl ICH78 D on 8 m σ 3 for lrg on roon θ m 90 o n f 0. 0.35 n 0.5 vr omr wh h ron wh ol normlon of mol h noror ll h fr from QCD. h oh n ol rv r h rl for n fr mrng wh <k > rmorl 88 V rvl wh Λ 0. GV n h h rv r h rl of ng Λ 0.6 GV fr mrng. Rn from ISR rngl on rl how von from horonl rgh ln 8 hvor from QCD. ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g 68

R. Fl ICH78 QCD Imrov ron ol rl rmnl of QCD 8 3 σ FFF 978 roh h ISR rngl r from CRN-Colm-Ofor- Rokfllr rmn CCOR ror. D lln h Workho on Fr ISR rmn Smr - 977. h ISR on rl r from. G. Clrk l. h r 7 978 67. lo lk rn. G. Clrk h onfrn. hvor lrg! R. D. Fl ICH78 D on 8 m σ 3 for lrg on roon θ m 90 o n f 0. 0.35 n 0.5 vr omr wh h ron wh ol normlon of mol h noror ll h fr from QCD. h oh n ol rv r h rl for n fr mrng wh <k > rmorl 88 V rvl wh Λ 0. GV n h h rv r h rl of ng Λ 0.6 GV fr mrng. Rn from ISR rngl on rl how von from horonl rgh ln 8 hvor from QCD. ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g 69

R. Fl ICH78 QCD Imrov ron ol rl QCD ron 8 3 σ R. Fl ICH78 R. D. Fl ICH78 h hvor of 8 m h 90 o ngl π 0 ro on σ 3 0.05 vr ll from h QCD roh wh Λ 0. GV ol rv n Λ 0.6 GV h rv. h wo low on r 53 n 63 GV. h ron r for of 00 000 m lrgr hn h fl horonl 8 rolon o W 500 GV 000 GV. ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g 70

CDF Rn D Chrg rl roon σ φ rmn of rl roon n Inlv Dffrnl Cro Son n roon-nroon Collon.96 V CDF Colloron h. Rv. D79 005 009 ± h X ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g 7

CDF Rn D Chrg rl roon σ φ ± h X rmn of rl roon n Inlv Dffrnl Cro Son n roon-nroon Collon.96 V CDF Colloron h. Rv. D79 005 009 h σ W.96 V 0.05 0.05960 GV 9GV ± σ 3 0.05 9GV 0 φ σ σ φ 9 m GV 0 π h h 0.5 8 σ π 0 0.05 3 0.59 GV 8 0 9 7.66 0 µ GV 9GV 6 m GV ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g 7

R. Fl ND 06 ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g 73

R. Fl ND 06 0 8 W 960 mng! I w rgh! for of 0000 50 ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g 7

R. Fl olr 979 CI vr h QCD Imrov ron ol π - π ± X π ± D ± gπ Q G glon π - π g Q glon glon glon G g Q low h omn QCD -ro glon roon whh frgmn ll no π n π -! Dr CI Conron π - -rk π - -rk π - π - π - -rk roon π - -rk -rk -rk -rk o ro n ogong π n h CI roh on m fn π whn h nomng π - or h nomng roon wh mll rol! ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g 75

R. Fl olr 979 CI vr h QCD Imrov ron ol π - π ± X π ± h r from H. J. Frh r rmn of h Hgh D ± Sngl rl Sr n Q π - Collon gπ Frml 58 lk rn h XIV oron Confrn 979.. G glon π - π g Q glon glon glon G g Q low h omn QCD -ro glon roon whh frgmn ll no π n π -! Dr CI Conron π - -rk π - -rk π - π - π - -rk roon π - -rk -rk -rk -rk o ro n ogong π n h CI roh on m fn π whn h nomng π - or h nomng roon wh mll rol! ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g 76

ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g 77 QCD QCD J J roon roon X Q G Q G h Q D δ mn.0 0. 3 mn mn Q G Q G m X σ δ π θ σ rg rnvr omnm ron roon.0 3 mn Q G Q G m X σ π θ σ QCD Imrov ron ol.0 0. 3 mn mn Q G Q G m X σ δ π θ σ

R. Fl ICH78 QCD Imrov ron ol rl rmnl of QCD R. D. Fl ICH78 h FN 60 r from C. romrg l. h Rv r 38 977; C. romrg l. C-68-63 o lh n Nl. h.. h FN 395 r from h Frml-hgh-nnlvn- Wonn Colloron lk gvn W. Slov h onfrn. FFF 978 ND Smmr Shool nwr Smr 6 06 Comron of h j n ngl π 0 ro on mr 00 GV W 9. GV n θ m 90 o. h j r from wo FN rmn 60 n 395 whr j fn h m of ll h rl no hr rv or. lo hown h QCD ron for h ro on of rong ron rk nrk or glon W 9. GV n θ m 90 o. Rk Fl Flor g 78

R. Fl ICH78 QCD Imrov ron ol rl rmnl of QCD R. D. Fl ICH78 h FN 60 r from C. romrg l. h Rv r 38 977; C. romrg l. C-68-63 o lh n Nl. h.. FFF 978 6 GV J! ND Smmr Shool nwr Smr 6 06 h FN 395 r from h Frml-hgh-nnlvn- Wonn Colloron lk gvn W. Slov h onfrn. Comron of h j n ngl π 0 ro on mr 00 GV W 9. GV n θ m 90 o. h j r from wo FN rmn 60 n 395 whr j fn h m of ll h rl no hr rv or. lo hown h QCD ron for h ro on of rong ron rk nrk or glon W 9. GV n θ m 90 o. Rk Fl Flor g 79

R. Fl ICH78 QCD Imrov ron ol rl QCD ron R. D. Fl ICH78 Comron of h rl on h 90 o π 0 ro on σ 3 from h QCD roh wh Λ 0. GV ol rv n h rk-rk lk-o ron mol of FF o rv. oh mol gr wh h W 53 GV. h QCD roh rl n mh lrgr ro on hn h FF mol W 500 n 000 GV. h FF rl 000 GV no hown r onl lghl lrgr hn 500 GV. lo hown r h ro on for rong j 90 o v 000 r h QCD roh h rv n h FF mol o-h rv ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g 80

R. Fl ICH78 QCD Imrov ron ol rl QCD ron R. D. Fl ICH78 ND Smmr Shool nwr Smr 6 06 30 GV J! Comron of h rl on h 90 o π 0 ro on σ 3 from h QCD roh wh Λ 0. GV ol rv n h rk-rk lk-o ron mol of FF o rv. oh mol gr wh h W 53 GV. h QCD roh rl n mh lrgr ro on hn h FF mol W 500 n 000 GV. h FF rl 000 GV no hown r onl lghl lrgr hn 500 GV. lo hown r h ro on for rong j 90 o v 000 r h QCD roh h rv n h FF mol o-h rv Rk Fl Flor g 8

olr 979 R. Fl olr 979 0 V V 00 GV J! h NO vn In on Qnm Flvornm Qnm Chromonm n Unf hor hl h Unvr of Coloro olr Coloro Jl 9 7 979. ND Smmr Shool nwr Smr 6 06 30 GV J! Rk Fl Flor g 8

R. Fl ND 06 R. Fl olr 979 CDF 006.96 V 00 GV J! ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g 83

R. Fl ND 06 R. Fl olr 979 CDF 006.96 V 00 GV J! σ J X 0 µ GV 3 σ π σ 3 ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g 8

R. Fl ND 06 R. Fl olr 979 CDF 006.96 V V 7 Yr! 00 GV J! σ J X 0 µ GV 3 σ π σ 3 σ J X.5 0 5 n GV ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g 85

R. Fl ND 06 R. Fl olr 979 CDF 006.96 V mng! I w rgh! V 7 Yr! 00 GV J! σ J X 0 µ GV 3 σ π σ 3 σ J X.5 0 5 n GV ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g 86

QCD J roon S h HC 000 GV J! Hgh J roon o ND Smmr Shool nwr Smr 6 06 Rk Fl Flor g 87

ND Smmr Shool nwr Smr 6 06 ICH 978 oko Rk Fl lnr lk rn h XIX Inrnonl Confrn on Hgh nrg h oko Jn h QCD ron ol roh Smmr & Conlon No vn gn h rrv QCD ron mol roh. o of lv or for h roh: X µµ X νµ - X. µµ- X π X J X. - JJ X νµ-j X. h lon of h hor r ll r n hol onr lv fr. R. D. Fl ICH78 n of h mo rm n fnv ron of h hor hv no n orv rmnll. Or knowlg of wh h hor r mrovng n oon wo r w hol hv mor nv r.. ron o 0% lvl. Cr m kn n ng h rrv of h hor onl whr h l.. lrg Q. hr r n mn lrg orron o h mo form low Q.. Q ff non-rrv ff whh nno rn ll. h vr ng n fn m. W hv hor n o ll of o onfrm h n h orr hor of rong nron. Rk Fl Flor g 88

ND Smmr Shool nwr Smr 6 06 ICH 978 oko Rk Fl lnr lk rn h XIX Inrnonl Confrn on Hgh nrg h oko Jn h QCD ron ol roh Smmr & Conlon No vn gn h rrv QCD ron mol roh. o of lv or for h roh: X µµ X νµ - X. µµ- X π X J X. - JJ X νµ-j X. QCD no j nohr hor. If no h orr ron of nr h lon of hor r ll r n hol onr hn wll om m for nohr lv fr. n hor mrg. R. D. Fl ICH78 n of h mo rm n fnv ron of h hor hv no n orv rmnll. - R. Fl ICH78 Or knowlg of wh h hor r mrovng n oon wo r w hol hv mor nv r.. ron o 0% lvl. Cr m kn n ng h rrv of h hor onl whr h l.. lrg Q. hr r n mn lrg orron o h mo form low Q.. Q ff non-rrv ff whh nno rn ll. h vr ng n fn m. W hv hor n o ll of o onfrm h n h orr hor of rong nron. Rk Fl Flor g 89