1-5 July 2019
The University of Manchester
Europe/London timezone
- pascos2019@manchester.ac.uk
- +44 (0)161 275 4171
The Local Organising Committee
Parallel: Collider Probes of New Physics
Place
Location: Schuster
Room: Blackett Lecture Theatre
Date:
from 1 Jul 14:30 to 4 Jul 15:50
Conveners
-
1 Jul 14:30 - 16:10
- Prof. Gorbunov, Dmitry (INR RAS)
-
1 Jul 16:40 - 18:20
Parallel 2
- Prof. Belyaev, Alexander (Southampton University)
-
2 Jul 14:30 - 16:10
Parallel 2
- Prof. Kobakhidze, Archil (The University of Sydney)
-
2 Jul 16:40 - 18:20
Parallel 2
- Prof. Barlow, Roger (University of Huddersfield)
-
4 Jul 14:30 - 15:50
Parallel 2
- Dr. Pozdnyakov, Andrey (RWTH)
Timetable | Contribution List
Displaying 25
contributions
out of
25
Type: oral presentation
Session:
Parallel: Collider Probes of New Physics
Track: Collider Probes of New Physics
Motivated by possible theoretical extensions to the standard model, hidden photons (HP) are a candidate for the cold dark matter. Their possible masses cover a broad range, from 10^-12 to 10^6 eV/c^2[1]. Large scale direct detection experiments such as LUX-ZEPLIN (LZ), built primarily to detect WIMPs, are also sensitive to HP dark matter via the so-called hidden photoelectric effect in the keV/c^2
... More
Presented by Mrs. Athoy NILIMA
on
04/07/2019
at
15:30
Type: oral presentation
Session:
Parallel: Collider Probes of New Physics
Track: Collider Probes of New Physics
Precision electroweak data, a light higgs and LHC searches for new spin one particles are all very constraining on technicolor models. We use a holographic model of walking techicolor (WTC) gauge dynamics, tuned to produce a light higgs and low S parameter, to estimate the range of possible vector(ρ) and pseudo-vector(A) resonance masses and couplings as a function of the number of colours and th
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Presented by Prof. Nicholas EVANS
on
02/07/2019
at
13:50
Type: oral presentation
Session:
Parallel: Collider Probes of New Physics
Track: Collider Probes of New Physics
I discuss findings from my recent comparison of Bayesian and frequentist approaches to resonance searches (1902.03243). I introduce a counting experiment based on a search for the Higgs boson from which I generate pseudo-data. With that pseudo-data, I contrast the evolution of the $p$-value and posterior as we accumulate data and directly compare global $p$-values and the posterior of the backgrou
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Presented by Dr. Andrew FOWLIE
on
02/07/2019
at
14:30
Type: oral presentation
Session:
Parallel: Collider Probes of New Physics
Track: Collider Probes of New Physics
The Belle II experiment at the SuperKEKB energy-asymmetric $e^+ e^-$ collider is a substantial upgrade of the B factory facility at the Japanese KEK laboratory. The design luminosity of the machine is $8\times 10^{35}$ cm$^{-2}$s$^{-1}$ and the Belle II experiment aims to record 50 ab$^{-1}$ of data, a factor of 50 more than its predecessor. With this data set, Belle II will be able to measure the
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Presented by Alberto MARTINI
on
02/07/2019
at
15:40
Type: oral presentation
Session:
Parallel: Collider Probes of New Physics
Track: Collider Probes of New Physics
The Belle II experiment at the SuperKEKB energy-asymmetric $e^+ e^-$ collider is a substantial upgrade of the B factory facility at the Japanese KEK laboratory. The design luminosity of the machine is $8\times 10^{35}$ cm$^{-2}$s$^{-1}$ and the Belle II experiment aims to record 50 ab$^{-1}$ of data, a factor of 50 more than its predecessor. From February to July 2018, the machine has completed a
... More
Presented by Alberto MARTINI
on
01/07/2019
at
16:40
Type: oral presentation
Session:
Parallel: Collider Probes of New Physics
Track: Collider Probes of New Physics
We explore an extension to the Standard Model which incorporates a vector field in the fundamental representation of SU(2)L as the only nonstandard degree of freedom. We study the model in which a Z2 symmetry is manifest, making the neutral CP-even component of the new
vector field a vectorial dark matter candidate. We constraint the parameter space through LEP and LHC data, as well as from curre
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Presented by Dr. Felipe ROJAS ABATTE
on
01/07/2019
at
13:50
Type: oral presentation
Session:
Parallel: Collider Probes of New Physics
Track: Collider Probes of New Physics
A variety of experiments have been developed over the past decades, aiming to detect Weakly Interactive Massive Particles (WIMPs) via their scattering in a detector medium. The sensitivity of these experiments has improved with a tremendous speed due to a constant development of the detectors and analysis methods. Detectors that are able to reconstruct the direction of the nucleus
... More
Presented by Prof. Ali Murat GULER
Type: oral presentation
Session:
Parallel: Collider Probes of New Physics
Track: Collider Probes of New Physics
The observation of neutral long-lived particles at the LHC would reveal physics beyond the Standard Model and could account for the many open issues in our understanding of our universe. Long-lived particle signatures are well motivated and can appear in many theoretical constructs that address the Hierarchy Problem, Dark Matter, Neutrino Masses and the Baryon Asymmetry of the Universe.
With th
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Presented by Audrey KVAM
on
04/07/2019
at
14:50
Type: oral presentation
Session:
Parallel: Collider Probes of New Physics
Track: Collider Probes of New Physics
Galactic-scale structures can play an important role in pinning down dark matter properties. While weakly interacting massive particles (WIMPs) behave as cold dark matter on galactic scales, it is known that many beyond-WIMP candidates suppress the linear matter power spectrum. Though the suppression has been traditionally parametrized by a single parameter, thermal warm dark matter mass, the actu
... More
Presented by Dr. Ryusuke JINNO
on
01/07/2019
at
14:30
Type: oral presentation
Session:
Parallel: Collider Probes of New Physics
Track: Collider Probes of New Physics
In this talk, we will discuss the current status and future prospects of a recently approved experiment to search for light new physics particles produced in the far-forward region of the LHC, namely FASER, the ForwArd Search ExpeRiment. FASER has been proposed to supplement traditional experimental programmes searching for heavy new physics particles in the high-pT region and, therefore, to incre
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Presented by Dr. Sebastian TROJANOWSKI
on
04/07/2019
at
15:10
Type: oral presentation
Session:
Parallel: Collider Probes of New Physics
Track: Collider Probes of New Physics
I discuss the possibility of exponentially large cross-sections in field theories. Such effects were recently suggested to be present in theories with higgs mechanism, leading to exciting effects both for experimental observation and theoretical properties of the QFT. I will comment on the problems arising if this effect is really present, and discuss why it is hard to expect any exponential cro
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Presented by Dr. Fedor BEZRUKOV
on
02/07/2019
at
15:50
Type: oral presentation
Session:
Parallel: Collider Probes of New Physics
Track: Collider Probes of New Physics
Lepton number violation is notoriously difficult to observe with left-handed sneutrinos as sneutrino-antisneutrino oscillation requires the sneutrinos to be nearly degenerate. This situation is alleviated with right-handed sneutrinos. We discuss the possibility of observing lepton number violating sneutrino decays in the NMSSM extended with right-handed neutrinos. If higgsinos are lighter than sne
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Presented by Dr. Harri WALTARI
on
01/07/2019
at
16:00
Type: oral presentation
Session:
Parallel: Collider Probes of New Physics
Track: Collider Probes of New Physics
We present limits on several Dark Sector models obtained by BaBar.
Primarily designed for the study of CP violation in B mesons, this experiment is also, thanks to the high luminosity delivered and its powerful particle identification, sensitive to many other interesting physics processes.
These include production of visible and invisible dark photons, for which. our limits rule out the param
... More
Presented by Prof. Roger BARLOW
on
01/07/2019
at
15:50
Type: oral presentation
Session:
Parallel: Collider Probes of New Physics
Track: Collider Probes of New Physics
We present a simple extension of the Standard Model that contains, as the only new physics component, a massive spin-one matter field in the adjoint representation of SU(2)L. In order to be consistent with perturbative unitarity, the vector field must be odd under a Z2 symmetry. Radiative corrections make the neutral component of the triplet (V0) slightly lighter than the charged ones. We show tha
... More
Presented by Prof. Alexander BELYAEV
on
01/07/2019
at
13:30
Type: oral presentation
Session:
Parallel: Collider Probes of New Physics
Track: Collider Probes of New Physics
We revisit the simplest model of Higgs portal fermionic dark matter. The dark matter in this scenario is thermally produced in the early universe due to the interactions with the Higgs boson which is described by a non-renormalisable dimension-5 operator. The dark matter-Higgs scattering amplitude grows as ∝s√, signalling a breakdown of the effective description of the Higgs-dark matter intera
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Presented by Mr. Shyam BALAJI
on
01/07/2019
at
14:10
Type: oral presentation
Session:
Parallel: Collider Probes of New Physics
Track: Collider Probes of New Physics
The decay K+→π+vv , with a very precisely predicted branching ratio of less than 10exp[-10], is one of the best candidates to reveal indirect effects of new physics at the highest mass scales. The NA62 experiment at the CERN SPS is designed to measure the branching ratio of the K+→π+vv ̅ with a decay-in-flight technique. NA62 took data so far in 2016-2018. Statistics collected in 2016 allow
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Presented by Dr. Jacopo PINZINO
on
02/07/2019
at
16:20
Type: oral presentation
Session:
Parallel: Collider Probes of New Physics
Track: Collider Probes of New Physics
Weak vector boson scattering (VBS) is a sensitive probe of new physics effects in the electroweak symmetry breaking. Currently, experimental results at the LHC are interpreted in the effective field theory approach, where possible deviations from the Standard Model in the quartic-gauge-boson couplings are often described by 18 dimension-8 operators. By assuming that a UV completion exists, we deri
... More
Presented by Prof. Shuang-Yong ZHOU
Type: oral presentation
Session:
Parallel: Collider Probes of New Physics
Track: Collider Probes of New Physics
A comprehensive set of measurements of top quark pair and single top quark production in association with EWK bosons (W, Z or ɣ) is presented. The results are compared to theory predictions and re-interpreted as searches for new physics inducing deviations from the standard model predictions using an effective field theory approach. The status of the search for four top quark production, to which
... More
Type: oral presentation
Session:
Parallel: Collider Probes of New Physics
Track: Collider Probes of New Physics
_
Presented by Dr. Nazila MAHMOUDI
on
04/07/2019
at
14:30
Type: oral presentation
Session:
Parallel: Collider Probes of New Physics
Track: Collider Probes of New Physics
The features of the NA62 experiment at the CERN SPS – high-intensity setup, trigger-system flexibility, high-frequency tracking of beam particles, redundant particle identification, and high-efficiency photon vetoes – make NA62 particularly suitable to search for long-lived, weakly-coupled particles within Beyond the Standard Model (BSM) physics, using kaon and pion decays as well as operating
... More
Presented by Dr. Monica PEPE
on
02/07/2019
at
16:40
Type: oral presentation
Session:
Parallel: Collider Probes of New Physics
Track: Collider Probes of New Physics
Presence of nonholomorphic soft SUSY breaking terms is known to be a possibility in the popular setup of the Minimal Supersymmetric Standard Model (MSSM). It has been shown that such a scenario known as NonHolomorphic Supersymmetric Standard Model (NHSSM) could remain `natural' ( i.e., not fine-tuned) even in the presence of a rather heavy higgsino-like LSP. However, it turns out that distinguishi
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Presented by Prof. Utpal CHATTOPADHYAY
on
01/07/2019
at
16:20
Type: oral presentation
Session:
Parallel: Collider Probes of New Physics
Track: Collider Probes of New Physics
Presented is a proposed search for ultra light dark matter with the Atomic Interferometric Observatory and Network (AION)- a UK led initiative to design and build a multipurpose atom interferometer with the goal of probing the properties of dark matter and paving the way to detecting gravitational waves in the largely unexplored mid-band frequency range. The plan is to build a set of atom interfe
... More
Presented by Dr. Sarah MALIK
on
01/07/2019
at
15:40
Type: oral presentation
Session:
Parallel: Collider Probes of New Physics
Track: Collider Probes of New Physics
Some physics scenarios beyond the Standard Model of particle physics restore right-handed weak currents, which would manifest themselves in the polarization of the photon produced in $b\to s\gamma$ transitions. Due to the $V-A$ structure of the quark-$W$ coupling in the Standard Model, this polarization is strongly correlated with the flavour of the b-quark and suppresses interference responsible
... More
Presented by Dr. Olga VERBITSKAJA
on
02/07/2019
at
16:00
Type: oral presentation
Session:
Parallel: Collider Probes of New Physics
Track: Collider Probes of New Physics
Latest results on inclusive and differential top quark pair and single top quark production cross sections are presented using proton-proton collision data collected by CMS. The differential cross sections are measured as a function of various kinematic observables of the top quarks and the jets and leptons of the event final state. The results are confronted with precise theory calculations and u
... More
Type: oral presentation
Session:
Parallel: Collider Probes of New Physics
Track: Collider Probes of New Physics
We investigate the potential of the Large Hadron Collider (LHC) to probe one of the most compelling Beyond the Standard Model (BSM) frameworks --- Walking Technicolor (WTC), involving strong dynamics and having a slowly running (walking) new strong coupling. For this purpose we use recent LHC Run2 data to explore the full parameter space of the minimal WTC model using dilepton signatures from heav
... More
Presented by Ms. Azaria COUPE
on
02/07/2019
at
13:30