HIP NEWS March 30th 2015
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HIP Staff News
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Professor Peter Dendooven (Groningen) has been appointed Professor (FiDiPro) at HIP for the period 1.3.2015 – 28.2.2019. He will be working on the Tekes funded project NINS3.

DEPARTMENT OF PHYSICS / HIP JOINT COLLOQUIA / SEMINARS
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Tuesday 7 April 2015 at 10.15 in A315
A. Rebhan (Wien)
Top-down holographic glueballs and their decay patterns

Abstract: I report recent results on the spectrum and the decay patterns of scalar and tensor glueballs in the top-down holographic Witten-Sakai Sugimoto model. This model, which has only one free dimensionless parameter, gives semi-quantitative predictions for the vector meson spectrum, their decay widths, and also a gluon condensate in agreement with SVZ sum rules. The predictions for glueball decay are compared with experimental data for some of the widely discussed gluon candidates in the meson spectrum.

The 2015 CERN-JINR European School of High-Energy Physics
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The 2015 European School of High-Energy Physics will take place in
Bansko, Bulgaria, 2 – 15 September 2015

The deadline for applications is 8 May 2015.
Further details are available here:
http://physicschool.web.cern.ch/PhysicSchool/ESHEP/ESHEP2015/

Finnish working culture
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The course is targeted for all new international employees of the Helsinki University
Sign up in http://www.helsinki.fi/trainingcalendar ( Staff Training Calendar HENKKA)

Visitors
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V. Keränen 30.3. – 10.4. (EK-V)
A. Rebhan 6.4. – 9.4. (AV)
S. Stricker 9.4. – 13.4. (AV)

HIP NEWS March 23rd 2015
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DEPARTMENT OF PHYSICS / HIP JOINT COLLOQUIA / SEMINARS
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Thursday 26 March 2015 at 10.15 in A315
Laszlo Jenkovszky (Bogolyubov Institute for Theoretical Physics, National Ac. Sc. of Ukraine)
Regge factorization and diffraction dissociation at the LHC

Abstract: At the LHC, for the first time the nearly forward elastic scattering amplitude is completely determined by vacuum (Pomeron) exchange in the t-channel, making possible the full use of Regge factorization. Based on a simple Regge (Pomeron) pole exchange, different diffractive processes, including single, double proton dissociation as well as central production are related and compared with the existing LHC measurements.

COSMO-Seminar
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Wednesday 25 March 2015 at 14:15 in A315
Tomo Takahashi (University of Saga, Japan)
TBA

Visitors
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L. Jenkovsky 25.3. – 27.3. (RO)
T. Takahashi 23.3. – 27.3. (KE,SN)

HIP NEWS March 16th 2015
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DEPARTMENT OF PHYSICS / HIP JOINT COLLOQUIA / SEMINARS
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Friday 20 March 2015 at 10.15 in A315
Miklos Långvik (Marseille)
Applications of conformal SU(2,2) transformations to spinfoams and spin-networks

Abstract: We construct the the cotangent bundle of SU(2,2) as a symplectic manifold and study different applications of it to spinfoam models and spin-networks. Most notably, the concept of a particle in a Poincaré invariant spacetime is discussed. Additionally, the geometrical interpretation of the full SU(2,2) phase-space in a possible spinfoam context is clarified. The talk will include a brief introduction to spinfoam models and especially a short review of how to include fermions into spinfoams.

Finnish working culture
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The course is targeted for all new international employees of the Helsinki University
Sign up in http://www.helsinki.fi/trainingcalendar ( Staff Training Calendar HENKKA)

Visitors
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T. Takahashi 21.3. – 28.3. (KE,SN)

HIP NEWS March 9th 2015
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DEPARTMENT OF PHYSICS / HIP JOINT COLLOQUIA / SEMINARS
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Tuesday 10 March 2015 at 10.15 in A315
Olli Taanila (Nikhef)
Analytical models of holographic thermalization

Abstract: AdS/CFT is one of the very few tools we have to study the out-of-equilibrium dynamics of strongly coupled systems. I present several different analytical models of gravitational collapse which are dual to the thermalization of a strongly coupled field theory. The time evolution of several different observables are computed in these backgrounds, such as two point functions and entaglement entropy.

Now open for applications: travel grants for doctoral students
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Further information please check Flamma https://flamma.helsinki.fi/portal/home/sisalto?_nfpb=true&_windowLabel=contentviewer&contentId=HY335107&lang=en&_pageLabel=content_view

HIP NEWS March 2nd 2015
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DEPARTMENT OF PHYSICS / HIP JOINT COLLOQUIA / SEMINARS
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Wednesday 4 March 2015 at 16.00 (note time!) in A315
Matti Kalliokoski (CERN)
Beam Loss Monitoring and Machine Protection of the LHC for Run 2

Abstract: During Long Shutdown 1 (LS1) a series of modifications and updates to the LHC was made. These were done to allow the accelerator to reach 7 TeV and to improve the machine safety. One main part of the machine protection of the LHC is the Beam Loss Monitoring system (BLM). It consists of about 4000 monitors that have the task to prevent the superconducting magnets from quenching and protect the machine components from damage, as a result of critical beam losses. In this talk, modifications to the LHC Beam Instrumentation during the LS1, especially to the BLM system, are discussed.

COSMO-Seminar
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Wednesday 4 March at 14:15 in A315
David Alonso (University of Oxford)
The challenges of HI Intensity Mapping

Abstract: In the last years a novel observational technique in radio astronomy, labelled “Intensity mapping”, has gained relevance as a potentially very efficient cosmological tool due to its ability to map the density field on large scales over huge volumes. In this talk I will briefly review the current status of intensity mapping both regarding current observations and forecasts for future experiments. In particular I will focus on some of the practical challenges that intensity mapping must tackle before it can become a competitive observational technique.

Now open for applications: travel grants for doctoral students
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Further information please check Flamma https://flamma.helsinki.fi/portal/home/sisalto?_nfpb=true&_windowLabel=contentviewer&contentId=HY335107&lang=en&_pageLabel=content_view

Visitors
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D. Alonso 1.3. – 5.3. (KE,SN)