ALPS2017 -- an Alpine LHC Physics Summit

Session

YSF

18 Apr 2017, 19:05

UZ Obergurgl

Conveners

YSF

• Martin Flechl (Austrian Academy of Sciences (AT))

YSF: Physics Beyond the Standard Model

• Freya Blekman (IIHE, Vrije Universiteit Brussel (BE))

YSF: YSF Session

• Julian Heeck

YSF: YSF Session

• Mark Dayvon Goodsell (Ecole Polytechnique (FR))

93. Measurement of WW/WZ production in semileptonic decay channels and search for anomalous gauge couplings with the ATLAS detector

Margherita Spalla (Universita di Pisa & INFN (IT))

18/04/2017, 19:05

Higgs and the Standard Model

Young Scientist Forum

The measurements of the production of two massive vector gauge bosons represent an important test of the Standard Model of particle physics since they probe the structure of the triple gauge boson couplings as well as test of higher-order calculations in quantum chromodynamics. In this talk, a new measurement of the production of WW or WZ boson pairs with one W decaying leptonically and one W...

98. Higgs boson and standard model physics in the tautau final state

Johannes Brandstetter (Austrian Academy of Sciences (AT))

18/04/2017, 19:15

Higgs and the Standard Model

Young Scientist Forum

The focus of this talk is on Z and H boson decays to a pair of tau leptons. The presented analyses use pp collision data collected at center-of-mass energy of 13 TeV.

45. Implications of recent measurements in rare B decays

Peter Stangl (Excellence Cluster Universe, Technische Universität München)

18/04/2017, 19:25

Physics Beyond the Standard Model

Young Scientist Forum

90. Top quark differential cross-section measurement with the ATLAS detector

Michael James Fenton (University of Glasgow (GB))

18/04/2017, 19:35

Higgs and the Standard Model

Young Scientist Forum

The top quark is the heaviest known fundamental particle. The measurement of the differential top-quark pair production cross-section provides a stringent test of advanced perturbative QCD calculations. The ATLAS collaboration has performed detailed measurements of those differential cross sections at a centre-of-mass energy of 13 TeV. This talk focuses on differential cross-section...

65. "(YSF) Search for supersymmetry in pp collisions at 13 TeV in the single lepton final state with the CMS experiment"

Ece Asilar (HEPHY)

19/04/2017, 18:45

Physics Beyond the Standard Model

Young Scientist Forum

In this talk, an inclusive search for Supersymmetry is presented. The search is performed in events containing a single lepton, multiple jets, and missing transverse energy in the final state. The proton-proton collision data were recorded by the CMS experiment during Run 2 of the LHC at a center-of-mass energy of 13 TeV. Selections on b-jet enriched and depleted regions target different...

91. Search for New Phenomena in Dijet Events with the ATLAS Detector at √s = 13 TeV

Karishma Sekhon (University of Michigan (US))

19/04/2017, 18:55

Physics Beyond the Standard Model

Young Scientist Forum

During the last two years the LHC produced pp collisions at the record center-of-mass energy of 13 TeV. The sensitivity of searches for new phenomena with a high mass scale greatly benefited from the energy increase with respect to the LHC run-1 data. Events with two hadronic jets in the final state are of particular interest: new phenomena produced in parton collisions are likely to produce...

94. Search for gluino-mediated stop and sbottom pair production in events with b-jets and large missing transverse momentum

Chiara Rizzi (UAB and IFAE (Spain))

19/04/2017, 19:05

Physics Beyond the Standard Model

Young Scientist Forum

A search for the pair production of gluinos decaying to sbottom and stop at the LHC is reported. It utilises the pp collisions of the LHC Run2 dataset collected with the ATLAS detector. The search targets final states containing several energetic jets, of which at least three must be b-tagged, large missing transverse energy and either zero or at least one charged lepton.

5. Constraining new physics with standard model measurements

David Yallup (University College London)

19/04/2017, 19:15

Higgs and the Standard Model

Young Scientist Forum

Constraints on New Theories Using Rivet (Contur), is a new program designed to utilise precision detector corrected measurements of SM processes at the LHC as a test for physics beyond the standard model. In this talk the methodology and design of Contur is introduced, alongside a brief review of the advantages and limitations of the process. Future directions of the project will also be motivated.

76. Natural dark matter in the pMSSM

Melissa van Beekveld (Radboud University Nijmegen)

20/04/2017, 19:45

Dark Matter

Young Scientist Forum

We evaluate the fine-tuning of the phenomenological minimal supersymmetric standard model (pMSSM). We show that, contrary to common believe, that the fine-tuning of the pMSSM is not large yet, nor under pressure by LHC searches. Low sbottom, stop and gluino masses turn out to be less relevant for low fine-tuning than commonly assumed. Fine-tuning arguments point to models with a dark matter...

47. Sensitivity study of the measurement of the branching fraction of $B^+ \rightarrow \tau^+ \nu$ decays at the Belle II experiment

Mr Thomas Keck (Karlsruhe Institute of Technology)

21/04/2017, 19:00

Flavor Physics of Quarks and Leptons

Young Scientist Forum

The Belle II experiment is located at the KEK High Energy Accelerator Research Organization in Tsukuba, Japan.
It is designed to perform measurements in all fields of heavy flavour physics, including measurements of rare B decays.
This talk presents the recent progress in the hadronic and semileptonic tagging algorithm, current sensitivity studies
for the future measurement of $B^+ \rightarrow...

99. Rebalance and Smear for predicting QCD backgrounds in searches for new physics

Marek Adam Niedziela (Hamburg University (DE))

21/04/2017, 19:10

Physics Beyond the Standard Model

Young Scientist Forum

Searches for new physics in events with multiple jets and large missing transverse momentum are sensitive to a broad set of R-parity conserving SUSY models at the LHC. These searches rely on having an accurate prediction for the QCD background, especially when probing regions of the models with compressed spectra and/or regions featuring the production of light-flavor jets. A method for...

79. Search for top squark pair-production in the single-lepton channel in models with highly compressed mass spectra with the CMS experiment

Navid K. Rad (Austrian Academy of Sciences (AT))

21/04/2017, 19:20

Physics Beyond the Standard Model

Young Scientist Forum

Supersymmetry (SUSY) is one of the most promising candidates to solve multiple problems with the Standard Model. In particular models with a compressed mass spectrum are highly motivated by naturalness arguments and cosmological constraints on the dark matter relic density. In this talk, a search for SUSY with a compressed mass spectrum using events with a high-momentum jet from initial state...

66. Dissipative Losses in Self-Interacting Dark Matter Collisions

Lukas Semmelrock (Austrian Academy of Sciences (AT))

21/04/2017, 19:30

Dark Matter

Young Scientist Forum

Dark matter self-interactions are frequently used in the explanation of small structure problems in the universe. Depending on the model and strength of the interactions they can have important implications on the formation of structures, from dwarf galaxies to large galaxy clusters. Using four generic dark matter toy models, we present the effects of inelastic processes (i.e. dark...