BSM: early 2012 - Agenda (Indico) · ( борщ) BSM: early 2012 MSSM) s - BSM: early 2014. BSM:...
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Higgsless (vegetarians only) Compositeness (lasagna romana) SM (plain white rice) NMSSM (no beef, to solve the mu problem) Anthropic (this dish doesn’t contain human meat, otherwise you wouldn’t be there tasting it) nuSM (борщ) BSM: early 2012 MSSM (low on calories - for the hierarchy problem)
Transcript of BSM: early 2012 - Agenda (Indico) · ( борщ) BSM: early 2012 MSSM) s - BSM: early 2014. BSM:...
Higgsless
(vegetarians
only)
Compositeness
(lasagna romana)SM
(plain white rice)
NMSSM(no b
eef,
to solve
the mu pro
blem)
Anthropic(this dish doesn’t contain
human meat, otherwise you
wouldn’t be there tasting it)
nuSM
(борщ
)
BSM: early 2012
MSSM(low on ca
lories -
for the hier
archy probl
em)
BSM: early 2014
BSM: early 2014
Generic SM precision tests
BSM: early 2014
Generic SM precision tests
BSM Inspired precision searches
BSM: early 2014
“fare la scarpetta”
Francesco Riva (EPFL - Lausanne)
Pomarol, Gupta, Liu, Falkowski, Masso, Espinosa, Elias-Miro(1308.2803 ,1308.1879, 1405.0181, 1411.0669, 150x.xxxx)
Ingredients by:
recipe by
Motivation (short)
Provide a meaningful parametrization of departures from SM (in form of EFT)
What are the most important parameters to search for?
BSM inspired: interpretable as search
Motivation (short)
Provide a meaningful parametrization of departures from SM (in form of EFT)
What are the most important parameters to search for?
BSM inspired: interpretable as search
MotivationSearches for New Physics
PrecisionDirect
Motivation
LSM
Searches for New Physics
Motivation
LSM
LUVYU , YD, YE
1)
2)
3)
E/⇤
H/fExpa
nsion
Motivation
LSM⌘ L4
LUVYU , YD, YE
1)
2)
3)
L6
L8E/⇤
H/fExpa
nsion
1) No direct findings: M inew ⇠ ⇤ � mW
Expansion in Dµ/⇤
Motivation
LSM⌘ L4
LUVYU , YD, YE
1)
2)
3)
L6
L8E/⇤
H/fExpa
nsion
2) Higgs is excitation around EWSB vacuum
Expansion in H/f
(f ⌘ ⇤/g⇤)
v + h
Some BSM coupling (necessary, since fields have different weight in than derivatives)
Leadin
g term
in H/f
expans
ion
Leadin
g term
in h/f
expans
ion?
e.g. Cohen,Kaplan,Nelson’97~
Motivation
LSM
LUVYU , YD, YE
1)
2)
3)
E/⇤
H/fExpa
nsion
Motivation
LSM⌘ L4
LUVYU , YD, YE
1)
2)
3)
L6
L8E/⇤
H/fExpa
nsion
LSM⌘ L4
MotivationLe↵ =
⇤4
g2⇤L✓Dµ
⇤,g⇤H
⇤,g⇤fL,R
⇤3/2,gFµ⌫
⇤2
◆' L4 + L6 + · · · ,
Buchmuller,Wyler’86;Giudice et al ’07Grzadkowski et al’10Alonso et al’13
SM X
i
ci
⇤2Oi
What defines SM?(from an experimentalist’s point of view)
LSM⌘ L4
- Parameters: 19 in
MotivationLe↵ =
⇤4
g2⇤L✓Dµ
⇤,g⇤H
⇤,g⇤fL,R
⇤3/2,gFµ⌫
⇤2
◆' L4 + L6 + · · · ,
Buchmuller,Wyler’86;Giudice et al ’07Grzadkowski et al’10Alonso et al’13
SM X
i
ci
⇤2Oi
L4 ⌘ LSM
What defines SM?
Fixed by 19 most precise experiments
(from an experimentalist’s point of view)
mW = mZ cos ✓Wghff = mf/v
LSM⌘ L4
- Parameters: 19 in- Accidental relations (due to d=4 Lagrangian)
e.g.
MotivationLe↵ =
⇤4
g2⇤L✓Dµ
⇤,g⇤H
⇤,g⇤fL,R
⇤3/2,gFµ⌫
⇤2
◆' L4 + L6 + · · · ,
Buchmuller,Wyler’86;Giudice et al ’07Grzadkowski et al’10Alonso et al’13
SM X
i
ci
⇤2Oi
L4 ⌘ LSM
What defines SM?
Fixed by 19 most precise experiments
Predictions for other experiments
(from an experimentalist’s point of view)
mW = mZ cos ✓Wghff = mf/v
L6LSM⌘ L4
- Parameters: 19 in- Accidental relations (due to d=4 Lagrangian)
LBSM '
e.g.
- Parameters: 76 dimension-6 ops.- Accidental relations ?
MotivationLe↵ =
⇤4
g2⇤L✓Dµ
⇤,g⇤H
⇤,g⇤fL,R
⇤3/2,gFµ⌫
⇤2
◆' L4 + L6 + · · · ,
Buchmuller,Wyler’86;Giudice et al ’07Grzadkowski et al’10Alonso et al’13
SM X
i
ci
⇤2Oi
L4 ⌘ LSM
What defines SM? What defines BSM?
mW = mZ cos ✓Wghff = mf/v
L6LSM⌘ L4
- Parameters: 19 in- Accidental relations (due to d=4 Lagrangian)
LBSM '
e.g.
- Parameters: 76 dimension-6 ops.- Accidental relations ?
Motivation
17
Le↵ =⇤4
g2⇤L✓Dµ
⇤,g⇤H
⇤,g⇤fL,R
⇤3/2,gFµ⌫
⇤2
◆' L4 + L6 + · · · ,
Buchmuller,Wyler’86;Giudice et al ’07Grzadkowski et al’10Alonso et al’13
SM X
i
ci
⇤2Oi
L4 ⌘ LSM
What defines SM? What defines BSM?
This Tal
k: HIGGS PH
YSICS
(one fam
ily, CP c
onservin
g)
PART 117 BSM Parameters:
(Counting independent dimension-6 terms that can affect Higgs physics)
mu
mdme
mh
v
hhi=
v
g0
g
gs
In the vacuum <h>=v, operators only redefine SM parameters! Observable only in Higgs physics!
Elias-Miro,Espinosa,Masso,Pomarol’13; Gupta,Pomarol,FR’14
Higgs Physics Only
Parameters for BSM: Higgs-only
|H|2 ⇥ LSM
1
g2sGµ⌫G
µ⌫ +|H|2
⇤2Gµ⌫G
µ⌫ =
✓1
g2s+
v2
⇤2
◆Gµ⌫G
µ⌫ + h2v
⇤2Gµ⌫G
µ⌫ + ...
Higgs Physics Only
mu
mdme
mh
v
Elias-Miro,Espinosa,Masso,Pomarol13; Gupta,Pomarol,FR’14
hhi=
v
+
g0
g
gs
Z�
?h3?
i ' 1 + civ2
f2
i ' 1 + ci16⇡2v2
⇤2
Parameters for BSM: Higgs-only
from ratiowith SM loop
8 Parameters fixed by Higgs physics experiments!
Higgs Physics Only EW and Higgs physics
Parameters for BSM: Higgs+EW
EW and Higgs physicsIn the vacuum <h>=v, these operators can be measured!
Z⌫⌫ ZeLeL ZeReR
ZuRuR ZdRdRZdLdLZuLuL
7 of these operators modify:
Parameters for BSM: Higgs+EW
All tightly constrained by LEP1 1/1000
Preview:
EW and Higgs physicsIn the vacuum <h>=v, these operators can be measured!
Z⌫⌫ ZeLeL ZeReR
ZuRuR ZdRdRZdLdLZuLuL
7 of these operators modify:
Impact of these operators in H-physics is irrelevant
Parameters for BSM: Higgs+EW
All tightly constrained by LEP1 1/1000
xOPreview:
EW and Higgs physicsIn the vacuum <h>=v, these operators can be measured!
2 of these modify TGCs: g1Z �Hagiwara,Hikasa,Peccei,Zeppenfled’87
Parameters for BSM: Higgs+EW
Preview:
EW and Higgs physicsIn the vacuum <h>=v, these operators can be measured!
2 of these modify TGCs: g1Z �
LEP2(ee->WW) constrained* �5/100
Hagiwara,Hikasa,Peccei,Zeppenfled’87
Parameters for BSM: Higgs+EW
W+
W�
G0 hW+
W�
Preview:
Might as well use these as parameters, to keep relations between observables manifest!
Small Summary: Parameters
�gZeL, �gZeR, �gZ⌫ , �gZuL, �gZdL, �gZuR, �gZdR
V ,b,⌧ ,t,G,�� ,Z� ,h3 g1Z ,�
Gupta,Pomarol,FR’14“BSM Primaries”
PART 2Some Relations
(mostly for Higgs physics)
Gupta,Pomarol,FR’14
�Zff = �Wff 0
Relations 1
PDG
Falkowski,FR’14
�gZWW = �gWWWW = gZZ
WW = �g�ZWW
Relation Vff couplings:
Relation VVV,VVVV couplings:
�g��WW = 0
Gupta,Pomarol,FR’14
�Zff = �Wff 0
Relations 1
PDG
Falkowski,FR’14
0.01
�gZWW = �gWWWW = gZZ
WW = �g�ZWW
Relation Vff couplings:
Relation VVV,VVVV couplings:
�g��WW = 0
BSM Relations for Run 2Deviations in different. distr. of or
h ! Wffh ! Zff
Related with Triple Gauge Coupling
Pomarol,FR’13; Gupta et al’ to Appear
+
See e.g. Isidori,(Manohar),Trott’13Falkowski,Vega-Morales’14
h ! Z�, ��Related with
0 200 400 600 800 1000 p2
0.0005
0.0010
0.0015
0.0020
1GdG
dp2
h -> V
V
Related with Zff couplingsLEP 1
p2>5 GeV
BSM Relations for Run 2Deviations in different. distr. of or
h ! Wffh ! Zff
Related with Triple Gauge Coupling
Pomarol,FR’13; Gupta et al’ to Appear
+
See e.g. Isidori,(Manohar),Trott’13Falkowski,Vega-Morales’14
h ! Z�, ��Related with
0 200 400 600 800 1000 p2
0.0005
0.0010
0.0015
0.0020
1GdG
dp2
200 400 600 800 1000 p2
0.0002
0.0004
0.0006
0.0008
0.0010
1GdG
dp2
h -> V
V
Related with Zff couplingsLEP 1
p2>5 GeV
BSM Relations for Run 2Deviations in different. distr. of or
h ! Wffh ! Zff
Related with Triple Gauge Coupling
Pomarol,FR’13; Gupta et al’ to Appear
+
See e.g. Isidori,(Manohar),Trott’13Falkowski,Vega-Morales’14
h ! Z�, ��Related with
0 200 400 600 800 1000 p2
0.0005
0.0010
0.0015
0.0020
1GdG
dp2
200 400 600 800 1000 p2
0.0002
0.0004
0.0006
0.0008
0.0010
1GdG
dp2
h -> V
V
Related with Zff couplingsLEP 1
This is t
he sensi
tivity
we are ai
ming to m
ake
H-physics
competi
tive!
p2>5 GeV
BSM Relations at Run 1 Custodial Symmetry in h decays h->VV* �WZ
Pomarol,FR’13
Pomarol,FR’13
Off-Shell V mZ 6= mW
Integrated Decay Width already sensitive to p-dependence of hVV coupling!
BSM Relations at Run 1 Custodial Symmetry in h decays h->VV* �WZ
Pomarol,FR’13
Pomarol,FR’13
Off-Shell V mZ 6= mW
Integrated Decay Width already sensitive to p-dependence of hVV coupling!
BSM Relations at Run 1 Custodial Symmetry in h decays h->VV* �WZ
Pomarol,FR’13This is t
he sensi
tivity
we are ai
ming to m
ake
H-physics
competi
tive!
Pomarol,FR’13
Off-Shell V mZ 6= mW
Integrated Decay Width already sensitive to p-dependence of hVV coupling!
Parametrization of BSM for Higgs physics:
Conclusions
728 {g,� ,V ,t,b,⌧ ,Z� ,h3}
{gZ1 ,�}
EFT: - Consistent framework to search for leading BSM effects
{�gZeL, �gZeR, �gZ⌫ , �gZuL, �gZdL, �gZuR, �gZdR}
- Motivation for precision tests
Parametrization of BSM for Higgs physics:
Conclusions
728 {g,� ,V ,t,b,⌧ ,Z� ,h3}
{gZ1 ,�}
Focusing on the most relevant parameters (combining different experiments) increases the sensitivity to new physics
EFT: - Consistent framework to search for leading BSM effects
{�gZeL, �gZeR, �gZ⌫ , �gZuL, �gZdL, �gZuR, �gZdR}
- Motivation for precision tests
