Results from from CMS. So please go ahead when you're ready. Good, thank you.
Yes, I'll give you an overview of recent results in Power BI probes from from CMS.
So, these give access to hospital processes and they are produced early in
the collisions with the can be sensitive to the medium evolution.
There will be more categories of posts and during this
say, family of help hopes, liquid bosons and high energy photons. When Yeah, that's
type e d happens so I won't have time to cover within here. We focus on jet related
results say for heavy flavor on California. I would point you to to talk
on Wednesday and then for initial state on liquid hopes that will be on Friday. So we
really focus on jets here.
So let me start with the first result that we'll be talking about, which is a
measurement of charge in p&l equations. So, the idea here is to
to have to extract Quark and given fractions using a charge in ppm outlet.
So, the charge is defined using this equation here.
So, we
have the different tax associated to the to the jet. And you see similar parameters
with the Kappa and there is also a threshold under
the effects which are included in this in this observable. So, this is the first
charge measurement in in collisions,
again exploiting the correlation between the bottom church and the reconstructed
church church, as we see here in this plot
So this is showing the data for PP on the left and the difference in colleges for a
lead. And if we look at the templates, which are built using PCR, we see that for
grants, the template is more or less centered on zero. And then for quarks, we
expect a larger, well positive charge. So on the voyage, and then, and then he gets
discharged from the voyage for
you see that this template feeds give a good description of the data. So this is
after unfolding for the decoy effects. And then if we look at the results from these
templates, we see that so again, these are the same process with the different
societies for a lead here as a function of different like PT thresholds. So we don't
see a significant modification of the charge distribution in lead compared to
pee pee. We see similar compatible results in four four
On cases ppm a lead
so we see consistent fractions extracted from this template fits in ppm a lead for
different similarities. And these conclusions don't really depend on the
charge parameters. So the type e ticket as we see here, and also I'm not showing a
scanning the value of the Discover parameter, but also results are what a
senior
let me move on now to a second measurements, which is a jet budget scan
in the jet nuclear registration factor.
So this is a JPEG and adjust the font measurement to white jets to articles one
and two, in order to measure such wide Jetson in the lead we we have to use
advanced techniques
The blood I'm showing on the top right is the nice patien of the very underlying
events even selection
for candidate for the jets and we're using a for the estimation of the underlying
events we're accounting for for the film in relation to here the x axis is the
candidate phi. And this is used to estimate the
the amount of an event activity under the jet and to correct for it when we make the
measurements. And then the
on the left you can see migration metrics is using the unfolding to generate
valuable quantities.
And then the the top is for now jet so I was open to and the bottom is for y jets
equals one. And the next is for pspp. On the right is BGR plus hydrogen. So this is
Linux events. So after all of this
We come to the results which option is eight six.
So, again this is the first measurement
to this dislodged value of our there will be competing effects for wide jets. Of
course where there is separation but then also when we go to larger angles, we could
expect a recovery of quenched energy. So, based on previous measurements that
studied the
shape and the correlation between trikes and jets, we know that when we go to wider
angles,
we we expect to incur some
quenched energy. These are those here four, four. So different values of our
each of the panels for the different value of our intended existence jpg. And our
data are compared to many models. Not all of them are shown in this box.
And we see that the different models
have very different predictions. So this gives interesting new constraints on jet
jet quenching models.
I'm moving now to Busan check correlations. So, we can use photons or z
bosons as unmodified references
for instance, z bosons and dedicate products to that syntax with the with the
GP. And so, so, this is what is shown here and then this can be used as a reference
to study the recording charged particles. And then we there are several possible
observables such as Angular correlations, just fragmentation.
I'm showing here one example from
a paper and photo that photo tags events and this is a ratio
of the judge shapes. So, this is the correlation between
the tracks and
the jet and we see here are
modification, when comparing center led events making the issue to BP, especially
at large angles.
What I wanted to show here is a new result for this conference, this is the one
collisions.
The first thing I want to mention about this is that this is a very small signal
on the show regarding Plex. So, if we look at the the y axis here, so this is the
number of tracks
as a function of the angle with the with the Z.
And you see that we are really talking about just a few tweaks that we need to
remove the very large underline even to be sensitive to this. And then we are
contained peeps to let let TP is in blue and lettuce is in white.
So we see significant modifications in the azimuthal angle solutions.
Especially for central events, which are shown on the right compared to BP
and also measured our fragmentation functions and had on PT spec coverage on
the change here. For more information and putting the difference at the top here, I
think it's not valuable but it should be in your house.
Again, Moving now to kind of heavy flavor jet results, starting with
mesons in jets positions.
So here what we're studying is the various profiles of Jamaicans and jets. And we're
studying the as a function of the angle between the jet axis and
against studying this in ppl collisions within this kinematic equation which is
written on the blood
So comparing PP and E
blue light and when we see that
they they are consistent with the uncertainties but there is a hint for
wider distribution in the lead to BP
at at low p t, so I'm showing only one of the two
branches, which are we change up here. And so this is sensitive to the charm Quark
division with the Texas
salon heavy flavor this time, beauty. So we also studied beach shaved this thing.
This is the DNA center shooting for
in this store that is only PP at live TV.
So here again, we have the Git shake, which is
looking at the equation between the tracks and the jetpacks is a sufficient angular
distance between the two and we see two things here. The
First one. So what is shown here is the ratio of the gap between PJs and infinity
jets, we see that the issue is not once we do have
a difference, a different shape with respect to the Jets. And we see also that
the PTM
prediction is shown in blue. It's not on top of the data so it's not perfectly
modeled by PCR.
So so we have a flavor dependence of the pattern fragmentation in beauty
and for the last few minutes I want to
is on this
also recent results that
flashed this morning a few hours ago in the plenary session, which is the Watson
helium collisions. First, I'll give a short introduction about quarks to the as
hops they are produced early in the equation, but they also decay very, very
fast educate before the GP is formed.
They can be used as opposed to nuclear yes and they will be performing high x
clearance and say that
nugget out longer term plan for using this probe is to point to the formation time of
the GGP since with much more data than we have now, we could study the the
community note independence of the
production
cost as a function of the RPG and putting
different times inside the GP.
As what is shown on top left is an even display where we see
The characteristics of this device This is a pair, today's Wednesday the electron and
the tube detects detect jets
which we can I find the Feynman diagram and so, we have to be to the ribosomes
which lipnicki then two digits coming from the quantities.
Okay, so we're focusing under that telephone channel, the branching ratio is
rather small as you can see here in this pie chart, but the advantage is that we
have a clean final state with the two the to leptons
also they are unaffected by the cutiepie. So most of the sensitivity is coming from
the immune final state, because the radiant background is following this. This
final stage it would be coming from very young to data, but we also considering the
dialect on Indian channels.
Excluding the gms region, since this provides additional sensitivity, and it's
also a way to control the modeling of the backgrounds.
So as I mentioned in these events will expect to hype hype egb jets. But we
repeated the analysis with and without using this, this information. So this is a
way to to balance either hopelessness, if you don't use the bijection, then we are
completely only relying on the under leptons, which are very wet measures. And
then we can also include the beach so that we we have a better sensitivity. And one
thing that I also want to stress here is that it's not so often that we do this in
heavy data analysis, but we developed the analysis techniques using only one third
of the full data set. So in such that we were not sensitive to the signal in such a
small amount of data. And once everything was
designed and finalized, then
Only then we will look at the full dataset. I mean, do you have two more
minutes? Okay, thank you.
So these are the results on the left, what I'm showing is the dialect on general
without the digits. So what I haven't mentioned so far is that this is a
multivariate analysis we're using within the decision trees. And we see here the
signal in whites at high value values of stability. And then on the right, this is
when we add the counting of digits, we make categories to be just one digit to be
just as expected, the signal is mostly in the 1d and 2d categories. And in this way,
we have a better sensitivity.
All in all, we have four sigma significance. So this is not we are below
five sigma. But this is all based on evidence, very strong evidence.
And this is the mutual connection.
Compared to what we get in BP and also compared to predictions.
See that's our measurement is slightly below the prediction which is consistent
with it.
So I'm coming to my summary, the lab large data samples from ADC when to give access
to power probes and higher precision. So this is a list of what I've presented so
far.
We have access to this new and better ways to to study the properties and putting
links to more results, which I haven't covered today. And this is an into to zoom
if some people want to discuss after the session. Thank you.
Very many thanks for showing us all of these beautiful results in media. So we
have now time for questions both to this presentation and to all of the
presentations.
that we've seen today. So we can discuss in general hardware probes and heavy
items, or we can have specific questions related to these talks.
So the way this will work is if you press the raised hand button in zoom, then I can
call on the various people and unmute everybody. So please go ahead and do that.
If it doesn't work, just write a message in the chat and then we will also see your
question there.
Yes, I see brother has the first question. Please go ahead. Wow, hello.
Yeah, congratulations on this nice measurement of Tiki Bar production by CMS.
Actually, I wanted to ask two questions related to that topic. The first one is
related to retardant techniques. Could you tell us a little bit about protecting
performance in
The lead lead system and another question is about
nuclear modifications to PDF. How you want to explore that topic forever in the
future?
Yes. Okay. So I'll start with B tagging. So, we used techniques which are similar
to what is used in collisions with a limited via discriminant for for V
tagging, but it was trained specifically for for optimized for heavier
environments. And then the performance of it was
also
also studied and
machine on simulation but we also so in order to, to extract the connection
measurements using critical information, we have to assume
jet punching and we
We included chickeny jet quenching effects in the analysis.
But we with weather, conservative uncertainties on the amount of quenching
and we designed the analysis such that, I mean, we're really only counting digits,
we are not too sensitive to the details of the tagging efficiency of fake rates. We
don't have so much fake right, there's actually an audit question. So
that this is also why we have the two versions of the energies and we're
confident in our results with using the tagging but then
the other one is also there to show that they know that things are consistent even
when you don't use anything. And the second question was about PDFs. So as you
see, as of today, we have barely
And observation, so when it's still not say, very sensitive to the fact Yes.
But it's still interesting that we have this new process which is focusing on the
ones, which is also possible to study important acquisitions as we had the
observation couple of years ago in this system. So we think together in small
midterm goal that well, now we have this data, and maybe they can provide a bit
more sensitivity in the high x region.
Thank you.
Yeah. Thanks, everyone, and thanks.
Are there other questions?
Okay, I see a question from heavier
Yeah. Hi. This is
So, just to answer to the earlier question by by them on that presentation. So in
this we need to have the Sigma two s and Q one s as a function of multiplicity MPP.
Coalition's.
There are some preliminary results, and there is a paper in preparation with more
data that will come in next few months.
Thank you.
Great, thanks. It'll be very interesting to see the results from Alice, which we
can also look back at the previous results from CMS and compare as well.
There is also a poster that will be on this topic, but I'm not sure about the
content.
I'll get good. Yes, that's a good point. So just to everybody to advertise the
poster session where we will be seeing more results from all of our experimental
colleagues there. Yes.
So are there further questions?
I know unfortunately Mario's have to leave which is too bad because I had a question
about the Atlas results, but we can of course ask via email also later.
Sir, anything anyone wanted to discuss now?
Okay, I see no further hands being raised and since it is near the end of our
session
I will remind you that most of our panelists have created
Added sort of a Zoom Room where you're welcome to go join and chat with them. At
the end of this session. The point is here that that we are missing our coffee break
chats because we're doing this conference online. So we have encouraged all speakers
to create a Zoom Room for after their session where people can go and discuss
more and have more detailed conversations. So all of those links were in the slides,
but I will actually also post them in the chat window now so that you can click on
them and the password will be the same as the password that you had to get into this
room. So let me post to those links. And of course, if anybody has any further
questions, then we're happy to take them now.