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Looking forward to your talk.

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Okay, thank you very much for the
introduction. So I will go straight to

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this talk. So I'll start by showing a
Monte Carlo generator representation of

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what happens in a proton proton collision.
So when a heart collision happens, the

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Parton's that break apart from the each of
the incoming protons go through a hard

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scattering process shown in red blob here,
and the outgoing cartoons as well as the

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incoming particles can park and shower
down to the energy scale where carbon

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neutral particles such as headphones and
masons are formed in the can further decay

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into stable particles. The final state
headphones can also come from deem

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remnants or underlying events such as
multi particle interaction shown also

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here, but in this analysis, what we are
interested in Is the chats that are

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initiated by a court that come from hurt
scattering process. So before I get to the

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main topic, I would like to give a little
bit of background on what we want to

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measure in the how they are related to
Jason fields. So, first I want to talk a

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little bit about Jeff's struct, struct
substructure and even shape type of

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missions. It is originally motivated
mostly by search for new particles and

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beyond Standard Model physics. From the
perspective of ci CD, the emphasis is on

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mostly perturbative part of the process.
So one good example is the lunar plane,

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which is a theoretical representation of
parts of our process by looking at the

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rate the emission density in different
regions of the face space, and One can

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discriminate discriminate discriminate
against kcd events to look for boosted

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objects for instance. So,

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this technique has been recently applied

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to production energy loss studies of at
least preliminary results showed that the

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reduced emission density was shown at
small or radiation angle in detect jets

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compared to all inclusive jets, which is
the first indication that

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of first observation of det

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Cooney effects. The second example is the
event shape type of measurements that

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constrain the most fundamental parameter
in ci CD alpha strong is one can see here

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the the Jetson events cheap type of
measurements in elec electron on pi Turn,

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collider data

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provided the strongest constraint in a
wide range of tools. And when applied to

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deep elastic scattering processes for
future electron

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ion Collider,

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it is expected to be able to extend this
high precision measurements down

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to a lower on cue range.

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So, this is all possible thanks to the
theory field that has been revolutionized.

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Also the experimental techniques that were
developed in the past decade, for

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instance, the soft collinear effective
theory there was has been very successful

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also, sophisticated jet grooming. So our
knowledge on the preoperative part of the

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process advances, more opportunities are
opening

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up for heterogeneous process and

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this is a great time to be involved in
such kind of research. So, what now we

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come to the what we want to actually
measure or what we want to measure the

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fragmentation function, which is initially
constructed in electron, it was a minus,

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we are no parking prescription function is
needed and it is defined as a function of

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see longitudinal momentum of friction of
outgoing parking carried by final state or

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headwinds namely colinear fragmentation
function. More recently, bell experiment

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made measurements that can provide access
to our own Poor's transports momentum

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dependent fragmentation function shown
here on the top. So, by by allowing kt

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dependence in the fragmented TMD
fragmentation function. Now, the

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fragmentation function contains
information about the preserver the

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transverse momentum that is generated In
the process of non perturbative headwinds

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ation process, also on Star recently
measured transfer singleness spinner

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asymmetry of headwinds within a jet that
enables access to a polarized TMD

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fragmentation functions. This was possible
by measuring the the asymmetries in bins

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of sub structure variables to see a CNC
probe, which are also relevant to our

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analysis, and will be defined later in
this presentation. So, at le le CB we can

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access collinear fragmentation function as
well as on porous TMD fragmentation

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function by measuring headphone
distributions within c tape sets. So, is

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the LSB detector has been shown many
times. In previous talks, I will just

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mention that Lh CB is Key has the
capability of excellent tracking. With the

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feature the momentum resolution less than
1% up to 100 gV also we have excellent p

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ID capabilities with the shank of the
sector as well as equal in H kill

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detector. So, the features that are
attractive for header ization studies is

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the following. So LS CB is capable of full
jet reconstruction, not only with tracks,

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we all are also neutral particles with the
two different types of kilometers and

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we're capable of taking jets from like
cork as well as C and D cork. In

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particular the purity of the C and D
caretaking is upwards of 99%. Also we are

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capable of church header and
identification of In the feature range

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between two and 100 Gp also less we have
RS PP data sets are available from around

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2877 to eight TV in round two data at 13
TV so we can study identified it headwinds

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distributions within sets LCP so in order
to get sample of data that that enhances

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and sample of data that has a core
glaciated jets, we, we look at events that

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have Zeebo zoom as well as jet presenting
in an event. And we also require that the

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events are selected such that the Z boson
and the leading or jet are back to back to

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enhance the leading order events. So if
you see Down bottom are the leading order.

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PTA simulations show that the, the
Kirkland go to z cork sub process is

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predominant between 7017 year in 90%. So
I'm also a forward kinematics and le CB

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are further increases fraction of like
rock jets, in particular up and down

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flavor quotes.

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So, at LS CB, we previously measured and
measured z plus jet cross section, the D

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PT differential cross section is shown on
the right. Good agreement with the

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selected theory models is shown here.
giving us a confidence for a for our

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measurements. So now we have measured on
identified charged headphone or display.

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Within the jet in the same data set we
published recently in this is the first

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measurement at the Elysee of charge
headwinds within c tech jets and also an

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affordability and measurements of
identified headwind distribution within

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the chat is next come. So, here I show the
observables that were used in this

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analysis, there are the there are three of
them. So, the first longitudinal momentum

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fraction are defined in this slide on this
slide and the transverse momentum with

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respect to the J axis GT and also the
radio radio profile. So, measuring these

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variables are lays the foundation for a
broader head on education program at

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Elysee be utilizing for particle
identification charm Beauty initially jets

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also multi particle correlations within
jets in last week hidden just hidden

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distributions in correlate appears for
which I will not go into details.

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So, the analysis

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follows

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a similar analysis strategy to previous
question every CPT papers on here I just

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show one example of covariance matrix that
was used for simultaneous young folding

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the PT object in this object sub structure
variable GT and one can see that the the

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team to been on migration in jet PT is
much larger than the one for the

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substructure variable chichi and CRI show
the results on the radio profile. So, one

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can see that the greater energy available
in higher transfers movement transits lead

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to more headwinds

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produced especially at

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small are close to the jet axis. It also
it goes from a depletion to an axis, which

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is very interesting results. And also, we
compare our results with the Atlas

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inclusive jet results. The Atlas results
are known to the Atlas inclusive jets are

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known to be dominated by cologne initiated
jets. So, more in our results more charged

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headphones are smart radio and fewer are

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large

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radio and this this is

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qualitatively algorithmic With

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the expectation but the the the comparison
between the two regions call it

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quantitatively proves that the Courtney
shaded jets are narrower and more quote

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coordinated than the Google Image chase
jets measured by us. In also, we show the

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the results on the longitudinal profile
and compare with the same Atlas inclusive

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jet results. We can see that the quirky
initiated jets have relatively more

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headphones produced at higher momentum of
fractions than moon initiated jets. And

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this actually on these to the next
question that we have as to how the court

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flavor transition between the point of
horse scattering in the formation of

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headroom. Hi Hi z would look like in this
by measuring the identified charge

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headwind distributions, we will be
sensitive to this information. So, next to

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we are compare our results with the Atlas
of photons at results. So photon jet, like

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z jet enhances project fraction. And you
can see that the Nigerian momentum

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distributions are more or less

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similar and this is

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further evidence

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that the differences have served between
the LCB and Atlas reserve which are due to

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differences in Cork include headwinds
ation.

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So,

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we

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we've measured the the first first, the
measurements

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of the head the

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substructure, variable CT and z but there
are there are more than that. information

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that we could

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access by

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doing further analysis, one of which is
the doing the performing two dimensional

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analysis of heading distribution g p t
versus z. So, this will give us access to

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emperors transfers momentum dependent
fragmentation functions not in integrated

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over z variable it's more more direct way
of accessing the TMDL for the material

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function. And as I mentioned, just just in
the previous page, identified our charge

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of headroom and distributions in jets and
also additionally charge ratio of their

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off. It will be statistics it will provide
us a statistical sensitivity To the flavor

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of the prostate initiate checks. So in
conclusion, the check substructure event

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shade research advancing the past decade
improved our knowledge of GCD and TMD

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observables gained much interested in
nuclear physics community in armoires. TMD

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fragmentation concerns have been poorly
constructed. The LSC B has full potential

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of measuring identified head on
distribution within a chair in order to

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access on polarized T and D fragmentation
functions. So first measurement of honor

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an identified header and distribution
functions within a jet has been recently

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published showing results that are in
contrast with inclusive jets results from

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athletes and similar to photons that
results from Atlas and this lays the

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foundation for area for future lives.
related to head on initiation in Jetson

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mrcp

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thank you very much for this interesting
results. Other questions?

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You don't have the raise hand feature
here. So please just speak up if you have

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a question.

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No questions that I had a rather technical
question to your slide 10. There you show

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the P t distribution of the jet. And it
seems there is a systematic difference

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between the POW hack and the AMC analog
predictions. Do you have any Deal. Well,

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this could come from

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I

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side.

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Sorry, I didn't hear your own. So there we
go. Yeah, I do not have an answer to that

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question.

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Okay.

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Any other questions?

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No, Ben, thank you very much.

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And you can imagine the applause