minutes left etc. Okay, so you can start when you want.
Okay, thank you. Okay so I want to thank the organizer to give me the chance to
introduce some latest work from Atlas and CMS collaboration about this topic the
typos and resna search and the quick searches Okay, so since they actually see
has reached a new Manasa t are 114 volts and dopa so more and more nurses have
reached high sensitivity and precision. So it's impossible to just include all the
all this nice works in just one talk. So today I will just focus on the most recent
results from the SMC Ms. So I'm going to show six and assets about a diverse and
resna search and three for the vo Q. Okay, so we first go to the STI boson resonance
search. So as we all know, the standard model has successfully described the most
of the phenomenon observed in the high energy physics experiments. Still there
essential comments indicate some kind of new physics such as The hierarchy problem
the invocation of the gravity or the document dark energy. So many bsm theories
has been proposed and many of them have predicted new heavy resonances. For
example, the spins are radiant spin one that is a prime w prime or the spin to
this kaluza clang Graviton or the Gk So, add the TV scale they will decay into a
pair of standard model buttons, I mean the W x or gamma. So the search for diverse
resonance is a good prop to the beyond model physics. Okay, so then we start with
this search for the vs vs gnosis in the hydronic find the states for methods. So
this is a process with a pair of W or is that bosons and Higgs boson and the W and
or is that the case into our pair of the quarks and Higgs to our pair peacocks. So
the hvt model is taken as the signal here and so since the Ws s highly boosted so
that can production will be grouped constructed into two large budgets and
also to techno signatures from the Boston decay. They also used jet substructures
information such as the jet master detail arrival and detractors to better
discriminate the signal jets. And then the dye. devera Massey still used to have four
Ps and particle and the background Manningham from the QC D multiple Multijet
processes. And since there is no access from the senemo prediction the limit upper
limit of the production cross section times the branch ratio against the
daydreamer masks are set with the ecliptic with the exclusion of certain mass ranges
for the w prime z prime particles. And this result can also be translated into
exclusions in the ght f play, where the gf gq GH are the couplings of W and z prime
to the fermions quarks and x and a GQ is taken to be equal to gf. In this scenario,
The next analysis this this multi dimensional search for the diverse
resonances in the United States from CMS. And this analysis such as for for COC
final states that merged into two large artists and the prime w prime and the GTK
are taken as the possible signal candidates here. So, the jet mass and this
jet aim subject and as ratio to one are used to tack the signatures and then the
event is divided into two purity categories. Now, as the hpsp and hvlp are
defined based on the top two y values and adorns dominant backgrounds is this acuity
manager the process and the observation matches with the background prediction
Well, so, then the upper limit of the cross section against the requirements is
set and the exclusion is also also set on the w prime minister prime particles. And
thanks to the group in the implementation of the multimedia dimensional fit the
sensitivity significantly improved with respect to the reverse such as the next
search is the statics to bbbbbb production from found from Atlas. So, this ns is such
as for both resident and another's non production mode via the vpf process. So,
but today we will only focus on this resident production mode. And the since
there are four peacocks, the dye experience assigned from them with the
minimal DHH variable that's defined here. And
also multiple variables has been developed and developed to have to suppress the
backgrounds that mainly come from the multi jet and the teapot process and
spectrum of the post the feet and for B distribution here on the bottom left shows
a good agreement between the data and the Standing Order predictions So then the
limits of the signal set. So both broad and narrow resnet signal scenarios are
considered and and they are shown on the on the right. Okay, so the next analysis
this then this new did this have a resident that came to the hex pairing the
BBQ Keanu van states from CMS. And in this NSS there is a presence of a large rpp jet
coming from one hex and the other larger KPJ coming from the W TK, and the other w
from the Higgs would decay that tonically and to get a piece out of the neutrino, we
need to use the left and the the we use need to use the left and the qq jet and
the Higgs mass to solve the corresponding second order equation. And for the signal
models here considered here we are we were using the radian and the Gk Also there are
some Angular cuts applied to the left hand side VB Q, just to make sure that you
Higgs back to back, and main background here, TT bar, Martin jet and Ws jet. The
events are then divided into 12 categories that are summarized in this table based on
the left server and the Jeff substructures, then the BB jet mass and
the die hex resna mass in all categories that fits in Montana State to keep the
limits on the radio and the GTK. This is also the first result from CMS in this in
this channel. And next slide is the search for the heavy resonance, heavy dipole
resonance in the semi electronic states from Atlas. So this analysis covers a wide
range of production and decay modes. So the production mode can be the GTF Julian
or the Vf and one of the bosses can decay into it can decay into 01 or two leptons,
and the other Somebody care hydroponically resulting in either emerged or results
jets the titty bar definition and Ws jet and main backgrounds here but with
different importance in different categories and so, the simpler models
including the radiant the prime the prime and then also the Gk. So, then then the
environment of the system is taken as the discriminant rival except for in the zero
lepton category where it is impossible to review the very mass. So, then the
transverse mass is adopted as the discriminant as So, here's the result of
the upper limits of the different signal models and different production modes. So,
through the gf and to try and process the lower limit on the possible masses for
radian w prime z prime and the Graviton extracted and for the BBF process,
domestic medical grafting is obtained.
Okay, so, the next analysis This stage addressed in a search with the pickers
with a weak supervision from Fs. So, this is a very interesting as it that uses a
machine learning anomaly detection procedure that does not rely on any signal
model. And this is also actually not only a diversity search things the two GS can
also come from other sources like the Taos or quarks and even the bsm particles. And
the core of this and as is the technique of a classification without labels, also
known as the koala. And unlike the supervised learning using labeled samples
based on simulation called ice is a fully data driven method. The classifier is
trained using to mixed samples that suggested statistically identical aside
from different class proportion and then to implement this color in the in the data
resna search the mjg spectrum will be reconstructed and then divided into
multiple things and each as a signal region. Then the two neighboring beings
are called as the US called the sideband regions Then the region the sidebar
regions, just the two mixed samples that are required by color. And then a network
is trying to distinguish the difference of the mjg shape between the given signal
region and the two neighboring sidebar regions using the methods of the Jets as
the input features. If it does not, if it does find the anomaly in the signal region
the signal bump will be enhanced. Otherwise that empty spot on with spectrum
will remain smooth and compare with the condition the bsm search quality is
sensitive to a plenty of signals in instead of just one or a few signals. And
it's also a smart way doing 3d bump count that avoid a lot of trial factors from the
looks out looks as well effect and to stabilize the training procedure some pre
selection made to the to the to the objects and also the MG m one m two it
correlated before the input to the network and then the input samples are separated
into five slices for training cross validation and test and validation of the
network performance you can see the plots on the right here the to the efficient map
with or without a signal injection is shown. And the low efficiency actually
stands for high a score. So, we can see clearly here with the region with the
highest score a suggested region that we injected signal. And so, although this
method is fully data driven and model independent, we can also do a model
dependent feeds for specific signal model to extract the its limit to do such a
thing when the network would be trained with a signal injected and selection is
then applied based on the training result. And then the usual the usual limit setting
procedure is carried out to get the get the results here. And as shown here, this
results of more sensitive data inclusive digest searches And they extend and extend
the coverage of the all hydronic adaptive searches to regions five from from the
Standard Model masses. And since this now we're just we're only doing the two
dimensional two dimensional search where there's a great potential even extend this
method to a bet to get some better result. Okay, so then we can move to the second
part of my talk, which is the backlight clock search. So the vector clocks heavy
non Cairo clocks with a symmetric left and right handed couplings to the Standard
Model particles and the different from the Standard Model quarks. The vector cost
does not obtain mass through the Higgs mechanism, but through a neutron sector
confinement, and the via Q's are predicted in many mbsr theories. And it could have
could have a role in stabilizing the Higgs boson mass and does have a potential
solution to the hierarchy problem. Vector like quarks can be the simplest place or
tripolis and decays into a standard model top or bottom class in association with w
Zed or Higgs boson. And the results shown today are focused on the single production
mode. So compared with the production modes, the single practice production mode
is more sensitive to prop the couplings rather than rather than setting limits on
the big masses.
Okay, then the first American search is this search for the single production as
VOD can into w bottom from Atlas. So this person has a signature by electronic
decayed W and digit in association with a surgeon with former jet and a low energy
DJ that often fall out of their caste acceptance. So then, we have this missing
ticket up to 120 gV, the process of escaping neutrino and some Angular cause
to have to suppress the backgrounds and the interference between the MTP for the
work of signal protection the Standard Model process also considered The next to
the you know the cross section corrected with this interference take into account
and so the main Bronk backgrounds are coming from the TD Bosingwa top and the W
Jade process the data is found to be consistent with the background prediction
and the limit set with the re weighting factors of the interference effect applied
and for the for the B why why the result is competitive with the indirect rate
constraint in the range from 100 to 1350 G and x axis is the search for a large
miscibility with one stop Hawk from SS. So, in this search the vo vo Q is one of
the signal candidates that a vector like peacock decays into a dead person and top
Quark and then that decay into a pair of neutrinos which gives a large miscibility
and the top decays into multiple jets and conduct culminated into one larger budget
and find the discriminant if discriminant will be a transverse mass of the missing
at JIT the main backgrounds are TT bar single top WGS and depthless yet and no
significant excess before above this enomoto expected is found in the limit of
the cross section time rented ratio set with a narrow with approximate a
approximation used. Okay next analysis this electroweak production of backtrack t
cocking fully hydronic states in the states from Sam s, and in this and his the
vector like t kwaku decays into a top that pair or a top Hicks pair where the vector
Boston decays into your pair frequency box and the top Quark decays or hydroponically
for the production of the vector it can either come from wb fusion or Zed t
fusion, and gives different types of outgoing quarks and then search is carried
out into different mass ranges. The low mass range search looks for five jet
resonances with at least three p jets and high Astra wrenches search looks for looks
for the environment of the two larger jets and the plot here shows the background the
modeling the signal regions for hollow and high masses for t that and TX respectively
and the dominant background here at multi jet and the Tiki Bar again this there's no
significant access of data above the standard of prediction. And then the
limits are set on the cross section times the branching ratio for different Messner
with and the partial here actually are combined limits for the TNT that and also
the loan master and then high master enjoyed the best estimate expectation
expected sensitivity. And for the TMS below one TV the modal with with bottom
Kaka strongly constraint okay then oh can finally go to summary. So fortunately
there still no have this for the beyond Standard Model physics yet. But we have
set them at for multiple theory models of diverse resonance and the vo Q, which is
the method the rest of the methods higher, and there's already some combination
efforts made that to give that can give a bigger picture for the type of devil
searches. And we have also developed some new techniques to develop to better
distinguish the, the W Zed or Higgs from Stanmore, the backgrounds and we believe
there will be much more to come with more analysis correct scrutinizing the full run
to data. Okay, thank you very much.
Thank you very much.
Other questions?
Okay, I may have one So, about Victor loquats. I seem to remember that at the
beginning of friend to say There were some kind of incompatibilities between the
Atlas and CMS setup on the way like the generic tools that we use. And so, we
couldn't put for instance side by side, the single new production results at least
not as easy as that to you know, if now, when the results that are produced or that
are being produced or that will be produced, these things will be fixed or
not.
Or I don't know that sorry.
No problem.
Then. So, another question that comes from when we have all these searches that have
final status are basically the same as the one of the terminating background at one
level. So I'm wondering are interferences Are there any interference effect that has
to be taken into account and collected in these searches so I think for instance,
here on the screen Have your two that's one, but I think also for at some point to
die, but I think the the final thing with to these two quotes slept on neutrino
which is basically what one could expect from Chiba is the interference basically
negligible. Yeah.
So, so this one the single production reactor is the only one that I see the
mentioned this in their paper, so I guess for the others, this should be negligible.
Okay.
Okay, interesting.
Okay. Are there any further question?