Post on 17-Feb-2019
CK
M2008 s
napshots
Stefania Ricciardi
RA
L,
5/1
1/2
00
8
A s
ele
ctive
rep
ort
on
th
e w
ork
sh
op
with
em
pha
sis
on
:
�N
ew
(20
08)
resu
lts
�H
ot to
pic
s (
pe
rson
al ta
ste
)
Ste
fania
Ric
cia
rdi
3
CK
M 2
008 w
ork
shop
5th
work
sh
op in
a v
ery
successfu
l series.
5 d
ays o
f pre
senta
tions,
mostly in p
ara
llel se
ssio
ns o
rganis
ed in 6
WG
inclu
din
g t
heori
sts
and e
xperi
menta
lists
The o
rganis
ers
’aim
:
“ The CKM 2008 workshop will focus on discussing, compiling and interpreting
the results of the experiments at the current flavorfactories and on
transferring inform
ation to the new generation and developing new ideas and
approaches for them
“
A transition year
Belle
BaB
ar
Klo
e
Na48
Cle
o
D0
CD
F
KLO
E u
pgra
de
LH
Cb
SuperB
NA
48/3
2008 a
tra
nsitio
n y
ear
BesII
I
KM
2008 N
obel
“We are all children of a broken symmetry”
Fla
g s
ym
metr
y w
as n
ot
bro
ke
n…
“For
the d
iscovery
of
the o
rigin
of
the b
roken
sym
metr
y
wh
ich p
redic
ts t
he e
xis
tence
of
at
least
thre
e f
am
ilies o
f qu
ark
s in n
atu
re”
Share
d w
ith N
am
bu
Ste
fania
Ric
cia
rdi
5
The o
rigin
al C
in
Nic
ola
Cab
ibb
o
“Birth and raise of CKMphysics”
Nic
ola
Cab
ibb
o’s
talk
giv
en in R
om
e
CK
M
Exp
an
din
g i
n λ
:λ:λ
:λ:
Ste
fania
Ric
cia
rdi
6
CP
Vio
lation in S
M
The irr
educib
le p
hase o
f th
e C
KM
matr
ix is t
he
sourc
es o
f C
P v
iola
tion in t
he S
tandard
Mo
del
Exp
an
sio
n u
p t
o O
(λ λλλ6):
Vtd
Vub
Vts
O(1
)
O(1
)
O(λ
2 )
O(λ
4 )
β
γ
Ste
fania
Ric
cia
rdi
7
�O
rthogonalit
ybe
tween 1
st
and 3
rdcolu
mn
Unitarity
tria
ngle
s
�O
rthogonalit
ybe
tween 2
nd
and
3rd
colu
mn
Ste
fania
Ric
cia
rdi
11
Outlin
e�
Sid
es:
�|V
us| (
KL
OE
, N
A48)
�|V
cd| and |V
cs| (
CLE
O)
�|V
td/V
ts| (C
DF
, D
0,
BaB
ar,
Belle
)
�|V
ub| (B
aB
ar,
Belle
)
Tension between exclusive and inclusive measurements, and Vubinclusive and
sin2
β�
Angle
s:
�γ
= a
rg(V
ub)
(B
aB
ar,
Belle
)
What is the current precision?
�β
= arg
(Vtd
)
(BaB
ar,
Belle
)
sin2
βcharm
onium
vscharm
less penguins: is a disagreement still there?
�β s
= arg
(Vts)
(
CD
F,D
0)
Does not seem to be small…
has Tevatrondiscovered New Physics?
�O
ther
hot
topic
s:
�K
/πpuzzle
(
BaB
ar,
Belle
)
�C
harm
deca
y c
onsta
nts
(L
att
ice Q
CD
)
Ste
fania
Ric
cia
rdi
13
Long s
tan
din
g p
roble
m:
unitari
tyof
firs
t ro
w a
nd |V
us| valu
e
Vu
s
Ste
fania
Ric
cia
rdi
14
|Vu
s| fr
om
Kl3
(γ)decays
�C
om
ple
te s
et o
f se
mile
pto
nic
BF
an
d life
tim
es for
KL
, K
s ,
K+
(K
LO
E,
NA
48
, kT
eV
)
�F
lavia
ne
tp
rep
are
d a
co
here
nt se
t o
f a
ve
rag
es [arX
iv:0
80
1.1
812
0]
�A
ve
rag
e o
f diffe
ren
t K
l3 d
eca
ys:
|Vu
s| =
0.2
247
±0
.00
12
[F
lavia
Ne
t]
�P
recis
ion
is lim
ite
d b
y the
accura
cy o
n f
+(0
) (t
he
ory
) ca
lcu
latio
ns d
iffe
r
up
to
2%
Scia
scia
Sib
idanov
Wanke
Sim
ula
Ste
fania
Ric
cia
rdi
16
|Vcs|,|V
cd|f
rom
Cle
o-c
�N
ew
measure
ments
fro
m C
leo-c
impro
ve f
+(0
)|V
cq|
Cro
nin
-He
nnessy
Exp e
rror
~1-4
%
Latt
ice e
rror
~10%
Best sem
ilepto
nic
results
Ste
fania
Ric
cia
rdi
17
|Vcd| and |V
cs| sum
mary
Vcs
Vcd
Most
pre
cis
e d
ete
rmin
ation f
rom
Cle
o-c
(ta
gged
+unta
gged,
avera
ge
takes into
acco
unt
corr
ela
tion
s):
|Vcs| =
1.0
19 ±
0.0
10 ±
0.0
07 ±
0.1
06
Cro
nin
-He
nnessy
Ste
fania
Ric
cia
rdi
18
Form
facto
rs for
D→
Klν
�C
harm
= im
port
ant
labora
tory
for
Latt
ice Q
CD
tests
�E
xperi
menta
l m
easure
ments
of
the D
→π(
K)l
νfo
rm facto
rs, shape a
nd
norm
alis
atio
n (
with e
xte
rna
l in
puts
for
|Vcd| a
nd |V
cs|)
ca
n b
e c
om
pare
d w
ith
latt
ice r
esults
�C
onsis
tency g
ives c
onfide
nce
in t
he d
ete
rmin
ation o
f B
→πl
νfo
rm f
acto
rs
Cro
nin
-He
nnessy
Ste
fania
Ric
cia
rdi
19
|Vtd/V
ts| dete
rmin
ation
C.T
.Da
vie
s
Exp
erim
enta
lly e
rror
on
∆m
s~
0.7
%
alrea
dy s
malle
r th
an
∆m
d~
0.9
%
Err
or
on |V
td/V
ts|
dom
inate
d b
y e
rror
on ξ
Take t
he e
xptl
ratio o
f oscill
ation f
reque
ncie
s f
or
Bd
and B
s
Ste
fania
Ric
cia
rdi
23
Inclu
siv
e |V
ub|
�T
he
de
term
ina
tio
n o
f V
ub
fro
m in
clu
siv
e B
→X
ulν
de
cay s
uffers
fro
m
larg
e (
x5
0)
B→
Xclν
ba
ckgro
un
ds
�K
ine
ma
tica
l cu
ts a
re u
se
d to
su
ppre
ss th
e b
ackgro
und
�
Ko
wale
nski
Neub
ert
WG
2
�T
hese c
uts
lim
it t
he a
pplic
abili
ty o
f O
PE
(ra
tes b
ecom
es s
ensitiv
e t
o
local b q
uark
wave f
unction p
ropert
ies,
like F
erm
i m
otion)
�S
evera
l diffe
rent
appro
aches t
o o
verc
om
e t
his
lim
it a
nd e
xtr
act
|Vub
|
from
the m
easure
d r
ate
in lim
ited k
inem
atic r
egio
ns –
Theore
tical err
ors
depe
nds o
n m
band c
hosen m
odel
Ste
fania
Ric
cia
rdi
24
Inclu
siv
e |V
ub|
�M
ore
in
clu
siv
e m
ea
sure
men
ts (
less r
estr
ictive
cu
ts)
red
uce
th
eory
un
ce
rta
inty
an
d m
bde
pe
nd
ence
:
�N
ew
measure
ment
by B
elle
only
req
uires E
l>1G
eV
, i.e., 9
0%
of
tota
l
phase s
pace g
oes a
lon
g w
ay a
nd v
alid
ate
s larg
e |V
ub
| va
lues
P.U
jquid
o
Ko
wale
nski
P.U
jquid
o
Ste
fania
Ric
cia
rdi
25
Inclu
siv
e |V
ub|
�T
he
new
resu
lt fro
m B
elle
is th
e m
ost pre
cis
e (
less the
ory
de
pe
nd
ent)
an
d in
agre
em
en
t w
ith
all
the
oth
ers
P.U
jquid
o
Ste
fania
Ric
cia
rdi
26
|Vub| fr
om
exclu
siv
e d
ecays
Shig
em
itsu
�N
ew
pre
limin
ary
FN
AL/M
ILC
calc
ula
tion o
f f +
(q2)
giv
es m
uch
low
er
|Vub
|
�if c
onfirm
ed t
his
wo
uld
re-intr
od
uce a
tensio
n
with t
he inclu
siv
e d
ete
rmin
ation
(Ko
wale
nski)
Ste
fania
Ric
cia
rdi
27
The V
ub
crisis
Neub
ert
Various V
ub
inclu
siv
e r
esu
lts
and H
FA
G a
ve
rages
usin
g d
iffe
rent
theory
models
Ne
w V
ub
inclu
siv
e
from
Belle
Ste
fania
Ric
cia
rdi
28
Sum
mary
on U
T s
ides
* In
clu
siv
e o
nly
�Lots
of
pro
gre
ss o
n e
xperim
enta
l and t
he
ory
(Latt
ice Q
CD
)
�T
heore
tical err
ors
dom
inant
(in a
lmost
all
ca
ses)
ICH
EP
08
F.D
iLodovic
o
Fro
m n
ucle
ar
βdecays
|Vu
d| =
0.9
7418 ±
0.0
0026
Hard
y a
nd T
ow
ner,
Phys R
ev C
77 0
25501 (
2008)
Ste
fania
Ric
cia
rdi
34
A few
com
ments
�N
o e
xp
eri
me
nt
ha
s n
eve
r p
ub
lish
ed
a c
om
bin
ed
me
asu
rem
en
t o
f γ
fro
m d
iffe
ren
t m
od
es/m
eth
od
s
�T
hre
e-b
od
y D
alit
za
na
lysis
do
min
ate
th
e
se
nsitiv
ity a
t B
-fa
cto
rie
s t
ha
nks t
o la
rge
r B
F
�B
aB
ar
an
d B
elle
ce
ntr
al va
lue
s o
n γ
(Da
litz)
we
ll
ag
ree
, b
ut:
�diffe
rent
r B
�D
iffe
rent D
0decay m
ode
l err
or
Ste
fania
Ric
cia
rdi
36
±9°
BaB
ar
inclu
des:
Ksππ πππ
πππ
+ K
sK
K
(5 d
eg
rees, m
od
el u
ncert
ain
ty;
7 d
eg
rees, if
Ks
ππ ππππ
ππalo
ne)
Belle o
nly
Ks
ππ ππππ
ππ(9
(9
(9
(9
deg
ree m
.u.)
-S
imilar
sta
tisti
cal+
sys
err
ors
-D
iffe
ren
t rB
⇒ ⇒⇒⇒D
iffe
ren
t
un
cert
ain
ty o
n γ γγγ
BaB
ar
vs
Belle
(D
alit
z)
Ste
fania
Ric
cia
rdi
37
UTfit
vs
CK
Mfitter
)100
,54(
]2[,
)12
78(
oo
o=
±=
σγ
)113
,29(
]2[,
)70(
27
29
oo
o=
=+ −
σγ
V.Sordini
Non-g
aussia
nta
ils a
nd c
orr
ela
tions b
etw
een p
ara
mete
rs a
re
at
the o
rigin
of
the a
vera
gin
g t
rouble
s
Still
far
from
a 5
σevid
ence o
f C
P v
iola
tio
n
K.Trabelsi
Ste
fania
Ric
cia
rdi
38
G.Wilkinson
σ(γ
) ~
5°
in o
ne
year
at
nom
ina
l lu
min
osity
from
all
modes c
om
bin
ed
(no d
om
inant
mode)
Ste
fania
Ric
cia
rdi
39
Sensitiv
ity w
ith ∫L
dt
and im
pact
of
Cle
o-c
BD
K (
Dalit
z)
only
G.
Wilk
inson
β s
Sta
ndard
appro
xim
ation:
Φs
= -
2β
s ≅
0
βs
:= a
rg[-
Vtb
V* t
s/V
cbV
* cs]
Bs
cou
nte
rpa
rt t
o β
in B
dsyste
m
Ste
fania
Ric
cia
rdi
49
sin
2β s
B0s
B0s
u,
c,
t
u,
c,
t
W , ?
W, ?
B0s
b sbs
W
s
b
c c s s
ψ Φ+
Tim
e-e
volu
tion
:
Mix
ing p
hase –
sensitiv
e t
o N
P,
if a
ny
Tre
e b
→ccs
wea
k p
hase ≈
0
Ste
fania
Ric
cia
rdi
50
Bs
→J/ψ
φat T
evatr
on
Pa
rtia
l u
pda
te 2
.8/fb
~ 3
20
0 d
eca
ys (
ICH
EP
08
)
CK
M200
8 u
pd
ate
2.9
/fb
~
320
0 +
~ 1
100
(new
in
de
pend
en
t sa
mp
le)
Ste
fania
Ric
cia
rdi
52
CD
F (
Part
ially
) update
d r
esult
Incre
ased d
ata
set
still
hin
ts
at
larg
er
than S
M v
alu
es!
Co
nsis
tency w
ith S
M k
eeps
decre
asin
g 1
5%
�7%
(~1.8
σ)
0.2
8 <
βs
< 1
.29
at
68
% C
L
ww
w-c
df.
fna
l.g
ov/p
hys
ics
/new
/bo
tto
m/0
807
24
.ble
sse
d-t
ag
ge
d_
BsJ
Ps
iPh
i_u
pd
ate
_p
reli
m/
D.T
on
elli
No c
om
bin
atio
n a
vaila
ble
yet
Ste
fania
Ric
cia
rdi
53
Glo
bal fits
Arx
iv:0
803.0
65
8v1[h
ep-e
x]
Marc
h,
5,
2008
φ s<
0:
3σ
→2.5
σ
M.C
iuch
ini
Ne
w C
DF
resu
lts
not
inclu
ded y
et
CB
s
ICH
EP
08
If this evidence is confirm
ed M
FV models are ruled out
including the simplest realisation of the M
SSM
Ste
fania
Ric
cia
rdi
59
Kπ
puzzle
“Results a
re t
anta
lizin
g b
ut
ha
dro
nic
uncert
ain
ties r
em
ain
s”
Feld
man
Ste
fania
Ric
cia
rdi
60
Bs→
Kπ
opport
unity
+ m
uch b
ett
er
PID
syste
m
Volp
i
Rodri
gues
LH
Cb
CD
F
Wilk
inso
n
Ste
fania
Ric
cia
rdi
62
Conclu
sio
ns
�S
kip
pe
d f
or
lack o
f tim
e m
any im
port
ant to
pic
s: kaons, B
ra
re d
ecays, charm
mix
ing,.
.
�B
-facto
ries, C
harm
-facto
ries,
Tevatr
on
impro
vin
g p
recis
ion
on k
ey m
easure
me
nts
beyond d
esig
n,
in s
om
e c
ases
�T
heory
: extr
aord
inary
pro
gre
ss f
rom
latt
ice
�S
M looks q
uite s
olid
! P
uzzle
s,
tensio
ns,
even c
risis
, but no
crunch
yet..
�A
mong t
he 2
-3σ
effects
�a
fe
w d
isa
ppe
ari
ng (
arg
uab
ly!)
�
sin
2β
pen
guin
vs
charm
oniu
m,
unitarity
of
firs
t ro
w (
Vus)
�so
me
new
ari
sin
g
�sin
2β s
, f D
s
�so
me
co
nfirm
ed
�
Vub
(inclu
siv
e v
sexclu
siv
e),
Kπ
puzzle
�E
xce
llent
pro
spects
for
LH
Cb
Ste
fania
Ric
cia
rdi
65
Angle
γavera
gin
g issues
Much ado about nothing?
�N
o e
xp
eri
ments
attem
pts
a c
om
bin
atio
n o
f re
sults
obta
ine
d w
ith d
iffe
rent m
eth
ods (
AD
S/G
LW
and D
alit
zquote
d s
ep
ara
tely
)
�C
KM
fitter
(fre
quentist)
σ(γ
)~30°
�m
ore
co
nserv
ative
ap
pro
ach
: sa
mp
ling
rB
do
wn to
zero
an
d
insuri
ng
co
vera
ge
at d
esir
ed
CL
�U
TF
IT (
bayesia
n)
σ(γ
)~10°
�A
ble
to
re
pro
du
ce
in
div
idu
al (f
requ
en
tist)
expe
rim
en
tal re
su
lts
�In
th
e c
om
bin
atio
n, B
elle
resu
lts (
larg
er
rB)
dom
ina
tes th
e
ave
rag
e
�Lots
of dis
cussio
ns:
not cle
ar
wh
o is r
ight;
sta
tistica
l uncert
ain
ty w
ill b
e c
leare
d b
y L
HC
ban
d m
ode
l uncert
ain
ty b
y C
LE
O-c
⇒noth
ing t
o w
orr
y a
bo
ut!