Intensity frontier in Particle Physics
Boštjan Golob University of Ljubljana Introduction (Open questions, Triple Approach)
Intensity Frontier (General, B factories)
(Examples of) Measurements (CPV, LFU)
Specialized Seminar on Experimental Physics
Ljubljana, April 2018 B. Golob, Intensity Frontier 1/33 General LFU Intensity Frontier Introduction CPV Summary Open questions in particle physics Standard model (SM) of electromagnetic, weak and strong interaction (no, no gravity...) is one of the most successfull and experimentaly best verified physics theories 1945: W. Pauli 1948: Patrick Maynard Stuart Blackett ~1/4 of Nobel Prizes 1949: Hideki Yukawa in Physics 1950: Cecil Frank Powell 1957: Chen Ning Yang, Tsung-Dao (T.D.) Lee 1963: Eugene Paul Wigner 1965: Sin-Itiro Tomonaga, Julian Schwinger, Richard P. Feynman 1968: Luis Walter Alvarez 1969: Murray Gell-Mann 1976: Burton Richter, Samuel Chao Chung Ting 1979: Sheldon Lee Glashow, Abdus Salam, Steven Weinberg 1980: James Watson Cronin, Val Logsdon Fitch 1984: Carlo Rubbia, Simon van der Meer 1990: Jerome I. Friedman, Henry W. Kendall, Richard E. Taylor 1999: Gerardus 't Hooft, Martinus J.G. Veltman 2004: David J. Gross, H. David Politzer, Frank Wilczek 2008: Yoichiro Nambu, Makoto Kobayashi, Toshihide Maskawa 2013: François Englert, Peter W. Higgs ... @ currently achieved energies & measurement precision ....
Ljubljana, April 2018 B. Golob, Intensity Frontier 2/33 General LFU Intensity Frontier Introduction CPV Summary Open questions in particle physics SM problems: origin of mass: spontaneous symmetry breaking Higgs boson conservation of unitarity (probability)
W+ g, Z0 W+ W+ e+ W+ + n W- W- e ne W- e- W- E divergent
Ljubljana, April 2018 B. Golob, Intensity Frontier 3/33 General LFU Intensity Frontier Introduction CPV Summary Open questions in particle physics SM problems: origin of mass: spontaneous symmetry breaking Higgs boson conservation of unitarity (probability)
W+ g, Z0 W+ W+ H0 W+ W+ e+ W+ - + n n W W- W- W- + e e W- e- W-
unitary if MH O(100 GeV)
MH : corrections due to in order for MH O(100 GeV) M = A - B; A/B = 1 + 10-18 0 0 H H t H + ... “Hierarchy Problem” t
several solutions: Supersymmetry, Extra dimensions ... “New Physics” (NP)
Ljubljana, April 2018 B. Golob, Intensity Frontier 4/33 General LFU Intensity Frontier Introduction CPV Summary Open questions in particle physics SM problems: Matter/Antimatter Asymmetry: visible universe – complete matter dominance; one of (Sakharov) conditions – violation of CP symmetry(CPV) in SM - Cabibbo-Kobayashi-Maskawa matrix (CKM) q + i Vud Vus Vub W Vcd Vcs Vcb = X V Vtd Vts Vtb ij qj Measured CPV particles/anti-particles several orders of magnitude too small new sources of CPV beyond CKM NP hierarchies: experimentally determined parameters of SM
V V Vud us ub e m t u c t -3 -3 Vcd Vcs Vcb m[GeV]: 0,5 ·10 0,1 1,8 2 · 10 0,1 170
V V td ts Vtb unknown symmetries (NP) @ higher energies?
Ljubljana, April 2018 B. Golob, Intensity Frontier 5/33 General LFU Intensity Frontier Introduction CPV Summary Open questions in particle physics not directly related to SM: gravitation: theory of quantum gravity may yield answers about dark matter & dark energy
neutrinos: not massless, oscillating etc.), (ne ↔nm, what is their mass hierarchy, is there CPV in n sector?
unification: are all interactions 1 equally strong at high -
energies?
coupling coupling constant] [
105 1010 1015 E [GeV]
Ljubljana, April 2018 B. Golob, Intensity Frontier 6/33 General LFU Intensity Frontier Introduction CPV Summary TRIPLE APPROACH (... TO CONTEPMPORARY HIGH ENERGY PHYSICS)
Energy Frontier
origin of mass
hierar- dark chies matter NP matter/ dark antimatter n‘s energy
Intensity Frontier Cosmic Frontier
Ljubljana, April 2018 B. Golob, Intensity Frontier 7/33 General LFU Intensity Frontier Introduction CPV Summary Experimental view triple approach Energy Frontier
origin of mass
hierar- dark chies matter NP
matter/ dark anti-matter neutrinos energy Cosmic Frontier
Intensity Frontier
Ljubljana, April 2018 B. Golob, Intensity Frontier 8/33 General LFU Intensity Frontier Introduction CPV Summary Experimental view Energy Frontier triple approach Energy Frontier Tevatron, pp
large Hadron Collider, origin of mass pp (LHC)
Intern. Linear Collider, hierar- dark + - chies matter e e (ILC, CLIC) NP LHC upgrade matter/ dark anti-matter neutrinos energy m collider Cosmic Frontier
Intensity Frontier direct search for new particles & processes
Ljubljana, April 2018 B. Golob, Intensity Frontier 9/33 General LFU Intensity Frontier Introduction CPV Summary Experimental view triple approach Energy Frontier Intensity Frontier super B Factories (Belle II) B Meson factories origin of mass (Belle, BaBar) LHCb upgrade
LHCb (LHC) hierar- dark neutrino chies matter experiments Kaon experiments NP : : neutrino matter/ dark experiments anti-matter neutrinos energy Cosmic Frontier : indirects search for : Intensity Frontier contribution of new particles and processes to known phenomena
Ljubljana, April 2018 B. Golob, Intensity Frontier 10/33 General LFU Intensity Frontier Intensty Frontier CPV Summary Intensity Frontier
Experiment Theory Accurate theoretical Precise predictions measurements (within SM)
Agreement? Disagreement? SM ok NP? (at given precision)
Systematic tests Models of NP (measm‘s of related (predictions of observables) other effects)
Identification of Correct NP interpretation
Ljubljana, April 2018 B. Golob, Intensity Frontier 11/33 General LFU Intensity Frontier Intensty Frontier CPV Summary Intensity Frontier
cross-section rate of given dN for given Process L process N Ldt (experiment) dt (physics) luminosity of accelerator integrated luminosity (tehnics) 1 1 stat ( o ) N L
N : 10 100 1000 104 m : -0.441± 0.473 0.126 ± 0.326 -0.031± 0.096 0.009± 0.030
Ljubljana, April 2018 B. Golob, Intensity Frontier 12/33 General LFU Intensity Frontier Intensty Frontier CPV Summary Intensity Frontier
cross-section rate of given dN for given Process L process N Ldt (experiment) dt (physics) luminosity of accelerator integrated luminosity (tehnics) 1 1 stat ( o ) N L
N : 10 100 1000 104 m : -0.441± 0.473 0.126 ± 0.326 -0.031± 0.096 0.009± 0.030
Ljubljana, April 2018 B. Golob, Intensity Frontier 13/33 General LFU Intensity Frontier Intensty Frontier CPV Summary Intensity Frontier Q.: what is „precise“? A.: Whatever can within the precision exhibit significant deviation
from SM prediction. average of several averageseveral of = (
SM exp sm exp th measurements
e e -13 exp(gs )/gs ~8 10 EM interaction
-5 weak interaction exp (MZ)/MZ ~2 10
-2 strong interaction exp (as)/ as ~ 10
-23 exp (LLigo)/LLigo~2 10 gravitation (precision of detector)
Ljubljana, April 2018 B. Golob, Intensity Frontier 14/33 General LFU Intensity Frontier Intensty Frontier CPV Summary Intensity Frontier – B Factories
Ldt = 1 ab-1 ~ 1.1 10 9 B0B0 + B+B-
1 ab-1 Ldt
Apr ’99 Dec ‘10 1999-2010: Ldt ~ 1 ab-1 Belle, 0.6 ab-1 BaBar Energy: 2018 : Belle II √s=10.58 GeV e+ e- U(4S)
B z ~ cbgt U(4S) B B ~ 150mm p(e-)=7.0 GeV p(e+)=4.0 GeV
Ljubljana, April 2018 B. Golob, Intensity Frontier 15/33 General LFU Intensity Frontier Intensty Frontier CPV Summary Intensity Frontier – B Factories
Ldt = 1 ab-1 ~ 1.1 10 9 B0B0 + B+B-
1 ab-1 Ldt
Apr ’99 Dec ‘10 1999-2010: Ldt ~ 1 ab-1 Belle, 0.6 ab-1 BaBar Energy: 2018 : Belle II √s=10.58 GeV
e+e- q q, l + l - (q=u,d,s,c; l =e,m,t))
Ljubljana, April 2018 B. Golob, Intensity Frontier 16/33 General LFU Intensity Frontier Intensty Frontier CPV Summary Intensity Frontier – B Factories
Ldt = 1 ab-1 ~ 1.1 10 9 B0B0 + B+B-
1 ab-1 Ldt
Apr ’99 Dec ‘10 1999-2010: Ldt ~ 1 ab-1 Belle, 0.6 ab-1 BaBar Energy: 2018 : Belle II √s=10.58 GeV
1 ab-1 P. Urquijo, Belle2-note-ph-2015-004
Ljubljana, April 2018 B. Golob, Intensity Frontier 17/33 General LFU Intensity Frontier CPV CPV Summary CPV
A.D. Sakharov, Pisma Zh. Exp. Teor. Fiz. 5, 32 (1967) CP Violation within SM we know Sakharov conditions for an asymmetric (matter/anti-matter) CPV discovered in 60‘s Universe evolution: in neutral kaon system - barion number non-conservation (Nobel prize in 1980: - CP (and C) symmetry violation J.W. Cronin, V. Fitch) - out-of-equilibrium state is CPV an inherent property 1 2 X → f1 (NB ,r) X → f2 (NB ,1-r) of weak interaction or something else? 1 2 X → f1 (-NB ,r) X → f2 (-NB ,1-r) 1 2 1 2 NB rN B (1 r)NB r(NB ) (1 r)(NB ) 1 2 (r r)(NB NB ) B meson factories: BaBar @ PEPII SLAC CPV barion number violation Belle @ KEKB KEK
Ljubljana, April 2018 B. Golob, Intensity Frontier 18/33 General LFU Intensity Frontier CPV CPV Summary CPV q W+ i CP Violation within SM V qj Described by CKM matrix ij
- qi Vud Vus Vub W Vcd Vcs Vcb = Vtd Vts Vtb * q V ij j
= ~ 0.225
4 free if * parameters Vij=Vij ► L=LCP ► CP simetry is conserved * necessary condition for CPV VijVij ►
Ljubljana, April 2018 B. Golob, Intensity Frontier 19/33 General LFU Intensity Frontier CPV CPV Summary CPV U(4S) → B0 B0
CP Violation within SM U(4S) → B0 B0 JPC= 1- - 0- 0- mesons oscillate; B0B0 must be in same Af, Af: instantaneous amplitudes for B, B → f quantum state (one B0, one B0) until1st B decays; D. Kirkby, Y. Nir, CP Violation in Meson Decays, t: time between decays in RPP, PLB 667, 1 (2008) P(, Bf00 )(, t ) P Bf t with some simplifications a CP P(, Bf00 )(, t ) P Bf t (f1=f2=f, z=1, …) Smff sin()cos() t Am t
manifestation of CPV Sf, Af 0 2 f =(q/p) (Af / Af) = F (arg(Vij),|Vij|) Sf =2 (f) / [ 1+| f | ] 2 2 Af = [ | f | -1] / [ | f | +1]
Ljubljana, April 2018 B. Golob, Intensity Frontier 20/33 General LFU Intensity Frontier CPV CPV Summary CPV Unitarity triangle V V * V V * ud ub 1 td tb 0 CP Violation within * * VcdVcb VcdVcb SM h * VudVub Unitary triangle * VcdVcb * VtdVtb * VcdVcb V V V f2 ud us ub = f(A,,r,h) Vcd Vcs Vcb f f Vtd Vts Vtb 3 1 various measurements 1 r - triangle sides, (|Vij | – triangle angles) arg(Vij) to test if the picture by Kobayashi & Maskawa is correct
Ljubljana, April 2018 B. Golob, Intensity Frontier 21/33 General LFU Intensity Frontier CPV CPV Summary CPV Method
CP Violation within SM principle of one of the measurements, time dependent CPV m+ 0 0 B or B m- Fully reconstructed decay J/y to CP eigenstate ˆ ˆ p- CPff BCP + K p Determination s l- (4s) of B meson flavor
Υ - K (tagging) from Btag t=z/bgc charge of typical determined decay products B0(B0) Determination of t between two B meson decays time dependent 0 0 P(Btag B , BCP fCP ,t) P(Btag B , BCP fCP ,t) asymmetry: a CP 0 0 P(Btag B , BCP fCP ,t) P(Btag B , BCP fCP ,t) S sin( mt) Acos(mt)
Ljubljana, April 2018 B. Golob, Intensity Frontier 22/33 General LFU Intensity Frontier CPV CPV Summary CPV Method B0 CP Violation within 0 SM B experimental effects: - resolution on t - dilution (reduction of amplitude) due to wrong tagging
B meson reconstruction: t [ps] m+ - J/y m 2 2 - M bc (ECMS 2) ( pi ) B p + signal at MB Ks p pi
Ljubljana, April 2018 B. Golob, Intensity Frontier 23/33 General LFU Intensity Frontier CPV CPV Summary CPV Method
CP Violation within SM b V c cb J/y W- c B0 V*cs s d d Ks no weak phase no CPV VcbVcs* :
Ljubljana, April 2018 B. Golob, Intensity Frontier 24/33 General LFU Intensity Frontier CPV CPV Summary CPV Method
CP Violation within SM d u,c,t b b V c cb J/y V V* td tb W- c B0 B0 V*cs s Vtb V*td d d Ks b u,c,t d
* arg(Vtb*Vtd / VtbVtd*)~ 2f1 V V arg cd cb 1 * VtdVtb
P(B B0 , B f ,t) P(B B 0 , B f ,t) a tag CP CP tag CP CP CP 0 0 P(Btag B , BCP fCP ,t) P(Btag B , BCP fCP ,t) S sin( mt) Acos(mt)
S=sin2f1 A~0 Ljubljana, April 2018 B. Golob, Intensity Frontier 25/33 General LFU Intensity Frontier CPV CPV Summary CPV Results Belle, 710 fb-1, Phys. Rev. Lett. 108, 171802 (2012)
B → J/y KS B → J/y KL CP Violation within B0 SM B0
S=sin2f1= 0.668 ± 0.023 ± 0.013 A~0
P(B B0 , B f ,t) P(B B 0 , B f ,t) a tag CP CP tag CP CP CP 0 0 P(Btag B , BCP fCP ,t) P(Btag B , BCP fCP ,t) S sin( mt) Acos(mt)
Ljubljana, April 2018 B. Golob, Intensity Frontier 26/33 General LFU Intensity Frontier CPV CPV Summary CPV Results
CP Violation within SM many various measurements of observables related to CKM matrix (only 4 free parameters) global fit
Ljubljana, April 2018 B. Golob, Intensity Frontier 27/33 General LFU Intensity Frontier CPV CPV Summary CPV Results
CP Violation within SM many various measurements of observables related to CKM matrix (only 4 free parameters) global fit
Ljubljana, April 2018 B. Golob, Intensity Frontier 28/33 General LFU Intensity Frontier CPV CPV Summary CPV Results
CP Violation within SM many various measurements of observables related to CKM matrix (only 4 free parameters) global fit
!!!!
Ljubljana, April 2018 B. Golob, Intensity Frontier 29/33 General LFU Intensity Frontier CPV CPV Summary CPV Results
CP Violation within SM many various measurements of obseravbles related to CKM matrix (only 4 free parameters) global fit
Kobayashi Maskawa mechanism fits perfectly....
M. Kobayashi T. Maskawa
Ljubljana, April 2018 B. Golob, Intensity Frontier 30/33 General LFU Intensity Frontier CPV CPV Summary
CPV in Vtb Vts* b → sqq loop, not tree like in 0 B → J/y Ks SM: S = sin2f1
VtbVts* : no weak phase
B → mixing new particles (with specific arg(q/p) = arg(Vtb*Vtd / VtbVtd*)~ 2f1 couplings) can introduce new CP violating phases; 41 new phases in MSSM;
S=sin2 eff -sin2 f1 f1
Ljubljana, April 2018 B. Golob, Intensity Frontier 31/33 General LFU Intensity Frontier CPV CPV Summary CPV in b → sqq
41 new phases in MSSM
S=sin2 eff -sin2 f1 f1 sin2 eff ( f1 )
B2TiP Report
+ - 0 w(p p p )Ks
+ - f(K K )Ks h‘(gg)Ks
-1 th. uncertainty L [ab ] M. Beneke, PLB620,143 (2005)
Ljubljana, April 2018 B. Golob, Intensity Frontier 32/33 General LFU Intensity Frontier CPV CPV Summary CPV in b → sqq
41 new phases in MSSM
S=sin2 eff -sin2 f1 f1 sin2 eff ( f1 )
B2TiP Report
+ - 0 w(p p p )Ks
+ - f(K K )Ks h‘(gg)Ks
-1 th. uncertainty L [ab ] M. Beneke, PLB620,143 (2005)
Ljubljana, April 2018 B. Golob, Intensity Frontier 33/33 General LFU Intensity Frontier LFU CPV Summary Properties of e+e- Colliders (as compared to LHC)
D. Curtin et al., arXiv:1412.0018
low energy coupling • ‘
A
)
0 Z
g(
e:
l + 0 h Z - e l Z0 A‘ l + l -
M A' [GeV ]
10-1 1 10 100
Ljubljana, April 2018 B. Golob, Intensity Frontier 34/33 General LFU Intensity Frontier LFU CPV Summary Properties of e+e- Colliders (as compared to LHC)
D. Curtin et al., arXiv:1412.0018
low energy coupling • ‘
A
) 0
A. Bondar et al., Belle2-note-ph-2015-003; Z
g( B2TiP report e:
l + e- g Z0 h l - g e + + e 0 A‘ l e A‘ c Z - c l
Expected sensitivity Belle II 20 ab-1 (simulation)
M A' [GeV ]
10-1 1 10 100
Ljubljana, April 2018 B. Golob, Intensity Frontier 35/33 General LFU Intensity Frontier LFU CPV Summary Properties of e+e- Colliders (as compared to LHC)
• low energy • specific methods for full event interpretation (FEI)
U(4S) BB BsigBtag 4-momentum of BB system known
Bsig →t n (→ l n) candidate event
Ljubljana, April 2018 B. Golob, Intensity Frontier 36/33 General LFU Intensity Frontier LFU CPV Summary Properties of e+e- Colliders (as compared to LHC)
• low energy • specific methods for full event interpretation (FEI)
U(4S) BB BsigBtag 4-momentum of BB system known
fully (partially) reconstruct Btag; → Bsig 4-momentum known
Btag
Bsig →t n (→ l n) candidate event
Ljubljana, April 2018 B. Golob, Intensity Frontier 37/33 General LFU Intensity Frontier LFU CPV Summary Properties of e+e- Colliders (as compared to LHC)
• low energy • specific methods for full event interpretation (FEI)
U(4S) BB BsigBtag 4-momentum of BB system known
fully (partially) reconstruct Btag; → Bsig 4-momentum known reconstruct h from e.g. Bsig→ t(→ h n)n ;
Btag
Bsig
Bsig →t n (→ l n) candidate event
Ljubljana, April 2018 B. Golob, Intensity Frontier 38/33 General LFU Intensity Frontier LFU CPV Summary Properties of e+e- Colliders (as compared to LHC)
• low energy • specific methods for full event interpretation (FEI)
U(4S) BB BsigBtag 4-momentum of BB system known fully (partially) reconstruct B ; tag Missing E → Bsig 4-momentum known reconstruct h from e.g. (n) Bsig→ t(→ h n)n ; no additional energy in EM calorim.; Btag signal at EECL~0; Bsig
Bsig →t n (→ l n) candidate event
Ljubljana, April 2018 B. Golob, Intensity Frontier 39/33 General LFU Intensity Frontier LFU CPV Summary Properties of e+e- Colliders (as compared to LHC)
• low energy • specific methods for full event interpretation (FEI)
U(4S) BB BsigBtag 4-momentum of BB system known fully (partially) reconstruct B ; tag Missing E → Bsig 4-momentum known reconstruct h from e.g. (n) Bsig→ t(→ h n)n ; no additional energy in EM calorim.; Btag signal at EECL~0; Bsig reconstruction of B mesons with invisible particles in final state; Bsig →t n FEI performed using MVA, (→ l n) candidate event
Ljubljana, April 2018 B. Golob, Intensity Frontier 40/33 General LFU Intensity Frontier LFU CPV Summary
B D*tn l - - Belle, PRD 94, 072007, 700 fb-1 W n b c R(D(*))= (B D*tn) / (B D* n) B B l 0 +( ) B d d D *
l =e,m Lepton Flavor Universality (difference in only due to m ) B l R(D(*)): Test of Lepton Flavor Universality (LFU) B D*tn at least 2 n ‘s in final state FEI (t pn , t e nn)
R(D)SM= 0.300 ±0.008 H. Na et al., Phys.Rev.D 92, 054410 (2015)
R(D*)SM = 0.252 ±0.003 S.Fajfer et al., Phys.Rev.D85(2012) 094025
Ljubljana, April 2018 B. Golob, Intensity Frontier 41/33 General LFU Intensity Frontier Plan CPV Summary
B D*tn
Belle, PRD 94, 072007, 700 fb-1 R(D(*))= B(B D*tn) / B(B D* l n) l =e,m Test of Lepton Flavor Universality (LFU) tagging: 2 use NN with M miss , E , sig ecl cosqB-D* l . signal → data sample with 23123 D* tn low Onb used to fit the background contribution
2800 57 Eecl for data with D* l n Onb > 0.8
Ljubljana, April 2018 B. Golob, Intensity Frontier 42/33 General LFU Intensity Frontier LFU CPV Summary
B D*tn
R(D*)=0.302±0.030±0.011
Belle, PRD 94, 072007, 700 fb-1 current WA
(R(D(*)))/R(D(*))[%] SM
3.7 @ 5 ab-1 (~2020)
6.3 @ 20 ab-1 (~2022) R(D)
R(D*) combination of tagging methods (R(D*): had., semil., untagged R(D): had.) -1 B2TiP Report L [ab ]
Ljubljana, April 2018 B. Golob, Intensity Frontier 43/33 General LFU Intensity Frontier LFU CPV Summary
B D*tn
R(D*)=0.302±0.030±0.011
Belle, PRD 94, 072007, 700 fb-1 current WA
Belle II 50 ab-1 ? (R(D(*)))/R(D(*))[%] SM
3.7 @ 5 ab-1 (~2020)
6.3 @ 20 ab-1 (~2022) R(D)
R(D*) combination of tagging methods (R(D*): had., semil., untagged R(D): had.) -1 B2TiP Report L [ab ]
Ljubljana, April 2018 B. Golob, Intensity Frontier 44/33 General LFU Intensity Frontier LFU CPV Summary
R(D(*)) only one of hints for LFU violation b s b →s m+m - W- Electroweak penguin; Z0/g Further discrepancies w.r.t. SM m + m - e.g. LHCb, arXiv:1705.05802 B+ → K+m+m-, B0 → K*0m+m-
LFU in b →s m+m - R(K*) = G (B0 → K*0m+m -) / G (B0 → K*0e+e -) SM theor. clean control sample B0 → K*0 J/y(→ m+m -) (→ e+e - )
Belle II, ~ 10 ab-1
Ljubljana, April 2018 B. Golob, Intensity Frontier 45/33 General LFU Intensity Frontier LFU CPV Summary
Models of NP: - trying to explain reasons for SM / exp. discrepancies
model parameters [pmin,pmax] - scalar leptoquarks I. Dorsner et al., J. High Energ. Phys.2017: 188 l W- n b c
0 +( ) B d d D *
Ljubljana, April 2018 B. Golob, Intensity Frontier 46/33 General LFU Intensity Frontier LFU CPV Summary
Models of NP: - trying to explain reasons for SM / exp. discrepancies
model parameters [pmin,pmax] scalar leptoquarks I. Dorsner et al., J. High Energ. Phys.2017: 188 b l - n B0 LQ c d d D+(*)
Ljubljana, April 2018 B. Golob, Intensity Frontier 47/33 General LFU Intensity Frontier LFU CPV Summary
Models of NP: - trying to explain reasons for SM / exp. discrepancies
model parameters [pmin,pmax] scalar leptoquarks I. Dorsner et al., J. High Energ. Phys.2017: 188 intensity frontier R(D(*))
Rem(D(*)) model param.1 model
model param. 2
Ljubljana, April 2018 B. Golob, Intensity Frontier 48/33 General LFU Intensity Frontier LFU CPV Summary
Models of NP: - trying to explain reasons for SM / exp. discrepancies
model parameters [pmin,pmax] scalar leptoquarks I. Dorsner et al., J. High Energ. Phys.2017: 188 intensity frontier intensity + energy frontier R(D(*)) R(D(*))
Rem(D(*)) Rem(D(*))
model param.1 model model param.model 1
bbmm
model param. 2 model param. 2
Ljubljana, April 2018 B. Golob, Intensity Frontier 49/33 General LFU Intensity Frontier LFU CPV Summary - Systematic tests of possible NP signs: l jlept m W- n - measurements of related observables b c m lept M J hadr J m 0 m +( ) B jhadr D * d d
Ljubljana, April 2018 B. Golob, Intensity Frontier 50/33 General LFU Intensity Frontier LFU CPV Summary - Systematic tests of possible NP signs: l jlept m W- n - measurements of related observables b c m lept M J hadr J m 0 m +( ) B jhadr D * tests of j m and jlept hadr m d d meas. of B(B+,0 ptn) & B(B +,0 p l n) l - W- n b u B0 D+(*)
d d
Ljubljana, April 2018 B. Golob, Intensity Frontier 51/33 General LFU Intensity Frontier LFU CPV Summary - Systematic tests of possible NP signs: l jlept m W- n - measurements of related observables b c m lept M J hadr J m 0 m +( ) B jhadr D * tests of j m and jlept hadr m d d meas. of B(B+,0 ptn) & B(B +,0 p l n) meas. of B(B+ tn) & B(B+ l n) b - B- W- l
n u
Ljubljana, April 2018 B. Golob, Intensity Frontier 52/33 General LFU Intensity Frontier LFU CPV Summary - Systematic tests of possible NP signs: l jlept m W- n - measurements of related observables b c m lept M J hadr J m 0 m +( ) B jhadr D * tests of j m and jlept hadr m d d
+,0 +,0 j meas. of B(B ptn) & B(B p l n) hadr + +
meas. of B(B tn) & B(B l n) m c meas. of (D tn) & (D n) + B s B s l W+ l + Ds
n s
Ljubljana, April 2018 B. Golob, Intensity Frontier 53/33 General LFU Intensity Frontier LFU CPV Summary - Systematic tests of possible NP signs: l jlept m W- n - measurements of related observables b c m lept M J hadr J m 0 m +( ) B jhadr D * tests of j m and jlept hadr m d d
+,0 +,0 j meas. of B(B ptn) & B(B p l n) hadr + +
meas. of B(B tn) & B(B l n) m meas. of B(Ds tn) & B(Ds l n)
meas. of B(B+,0 Kmm) & B(B+,0 Kee)
u u B- K- b s W- Z0/g m + m -
Ljubljana, April 2018 B. Golob, Intensity Frontier 54/33 General LFU Intensity Frontier LFU CPV Summary - Systematic tests of possible NP signs: l jlept m W- n - measurements of related observables b c m lept M J hadr J m 0 m +( ) B jhadr D * tests of j m and jlept hadr m d d
+,0 +,0 j meas. of B(B ptn) & B(B p l n) hadr + +
meas. of B(B tn) & B(B l n) m
meas. of B(Ds tn) & B(Ds l n) j meas. of B(B+,0 Kmm) & B(B+,0 Kee) lept
meas. of B(B+,0 Knn) m u u B- K- b s W- Z0/g n n
Ljubljana, April 2018 B. Golob, Intensity Frontier 55/33