HIP NEWS February 10th 2014
============================

Election of the HIP staff representative in the HIP Board
=========================================================
The election days are at CERN 14.2. (Suomi -office at 10-12)
and in Kumpula 17.2. (in room A311 at 13-15).

The names put forward as candidates for staff representative
in the HIP Board are:

Tuomas Lappi (substitute Janne Pakarinen)

Kenneth Österberg

In the election one can vote any HIP member eligible to vote.

University of Helsinki Collegium
———————————–
The representatives of the independent research institutes in the UH Collegium for the next 4-year period are Eero Castrén (Neuroscience Center) and Juha Äystö (Substitute member).

The 2014 European School of High-Energy Physics
————————————————–
Garderen, the Netherlands, 18.6.-1.7.2014
Application dead-line 14.2.2014, see
http://cern.ch/PhysicsSchool/ESHEP/ESHEP2014

Swedish lunch in Kumpula
————————–
Practise your Swedish by having lunch with your colleagues 26.2.at
11.30, at restaurant Practikum in Kumpula! More information:
campuscoordinator Eva Åberg, eva.aberg@helsinki.fi

HIP ANNUAL REPORT
———————-
The first version of the Annual Report 2013
is available at
www.helsinki.fi/~chelmine/annual13.
Please send corrections and missing material
to Christina.Helminen@helsinki.fi asap.

TUHAT database
—————-
Please check in the TUHAT database the status of your publications. Conference papers and scientific activities you are expected to feed in yourself. The refereed articles are taken care of by the library.

VISITORS
——–
J. Kersten 17.2. – 18.2. (OL)
S. Yokoyama 24.2. – 7.3. (KE)

HIP NEWS February 3rd 2014
============================

Election of the HIP staff representative in the HIP Board
=========================================================
The election days are at CERN 14.2. (Suomi -office at 10-12)
and in Kumpula 17.2. (in room A311 at 13-15). Please
check at the notice board, if you are entitled to vote.
Mail voting is also possible. Contact Mikko with any questions.

NOTICE OF MEETING: * GROUP OF RESEARCH INSTITUTES
NOMINATING OF CANDIDATES FOR THE UNIVERSITY COLLEGIUM

Date: Tuesday, February 5th, 2014 at 9.00 am
Place: Main building, Auditorium IV (address: Fabianinkatu 33)

Under discussion will be nominating candidates for the University
Collegium. Please contact Mikko, if there are any questions.

The 2014 European School of High-Energy Physics
————————————————–
Garderen, the Netherlands, 18.6.-1.7.2014
Application dead-line 14.2.2014, see
http://cern.ch/PhysicsSchool/ESHEP/ESHEP2014

DEPARTMENT OF PHYSICS / HIP JOINT COLLOQUIA / SEMINARS
——————————————————-
Tuesday 4 February 2014 at 10.15 in A315
Yann Mambrini (Orsay)
Phenomenological aspects of Dark Matter in the light of recent experimental results

Abstract:
In 2013, several results have been released from different experimental groups looking for dark matter in our galaxy, from the direct detection constraints obtained by XENON and LUX to possible smoking gun signals suggested by the FERMI data or to missing energy searches at LHC. I will review the simplest yet motivated extensions of the standard model and explain why they begin to be severely constrained (if not excluded) by a combination of these sets of new data.

Thursday 6 February 2014 at 10.15 in A315
Aleksi Kurkela (CERN)
Thermalization in weakly coupled nonabelian plasmas

Abstract: Nonabelian plasmas far from equilibrium are a generic feature of early universe cosmology and appear in the early stages of heavy ion collisions. In my talk, I will discuss how such systems relax towards equilibrium, and the physical processes that drive the thermalization in the weak coupling limit. In particular, I will discuss the role of screening, collinear splitting and plasma instabilities out of equilibrium.

HIP ANNUAL REPORT
———————-
The first version of the Annual Report 2013
is available at
www.helsinki.fi/~chelmine/annual13.
Please send corrections and missing material
to Christina.Helminen@helsinki.fi asap.

TUHAT database
—————-
Please check in the TUHAT database the status of your publications. Conference papers and scientific activities you are expected to feed in yourself. The refereed articles are taken care of by the library.

VISITORS
——–
T. Koivisto 3.2. – 7.2. (KE)
Y. Mambrini 4.2. – 7.2. (OL)
S. Yokoyama 24.2. – 7.3. (KE)
R. Zhang, 29.1. – 4.2. (AT)

HIP NEWS January 27th 2014
============================

Election of the HIP staff representative in the HIP Board
=========================================================
The election days are at CERN 14.2. (Suomi -office at 10-12)
and in Kumpula 17.2. (in room A311 at 13-15). Please
check at the notice board, if you are entitled to vote.
Mail voting is also possible. Contact Mikko with any questions.

The 2014 European School of High-Energy Physics
————————————————–
Garderen, the Netherlands, 18.6.-1.7.2014
Application dead-line 14.2.2014, see
http://cern.ch/PhysicsSchool/ESHEP/ESHEP2014

Wednesday 29. January 14:15
Seminar in Atomic Layer Deposition (ALD) at Laboratory of Inorganic Chemistry, University of Helsinki, Chemicum (A. I. Virtasen aukio 1)

J. Härkönen, Applications of ALD thin films on radiation detectors

COSMO-Seminar
—————
Wednesday 29 January 2013 at 14.15 in A315
Massimiliano Rinaldi (Trento)
When Higgs met Einstein

Abstract:
The recent discovery of the Higgs boson at CERN triggered a great interest also in the cosmology and astrophysics community. In particular, a model of inflation based on the Higgs boson was recently proposed by Shaposhnkov and collaborators. Generally speaking, the (non minimal) coupling of the Higgs boson with a gravitational field generates interesting effects not only during inflation. In this seminar, I will show, for example, that classical “Higgs monopoles” may exist. These are stable and non singular particle-like solution of the field equation. I will also show that, under similar hypothesis, it is possible to explain the current accelerated expansion of the Universe.

HIP Annual Report
———————–
Please send your contributions to the HIP Annual Report
to christina.helminen@helsinki.fi asap.

TUHAT database
—————-
Please check in the TUHAT database the status of your publications. Conference papers and scientific activities you are expected to feed in yourself. The refereed articles are taken care of by the library.

VISITORS
——–
A. Bytsenko 17.1. – 28.1. (AT)
M. Rinaldi 28.1. – 31.1. (SN)
S. Yokoyama 24.2. – 7.3. (KE)
R. Zhang 29.1. – 31.1. (AT)

HIP NEWS January 20th 2014
============================

DEPARTMENT OF PHYSICS / HIP JOINT COLLOQUIA / SEMINARS
——————————————————-
Tuesday 21 January 2014 at 10.15 in A315
Blaise Goutéraux (Nordita, Stockholm)
Holographic metals and insulators

Abstract:
In this talk, we’ll comment on generic scaling properties of holographic metals and insulators, in particular through the low-temperature, low-frequency behaviour of their transport coefficients such as the optical conductivity.

HIP Annual Report
———————–
Please send your contributions to the HIP Annual Report
to christina.helminen@helsinki.fi asap.

TUHAT database
—————-
Please check in the TUHAT database the status of your publications. Conference papers and scientific activities you are expected to feed in yourself. The refereed articles are taken care of by the library.

VISITORS
——–
A. Bytsenko 17.1. – 13.2. (AT)
B. Goutéraux 20.1. – 21.1. (KK)
M. Rinaldi 21.1. – 24.1. (SN)
S. Yokoyama 24.2. – 7.3. (KE)

HIP NEWS January 13rd 2014
============================

Tax cards no longer need to be delivered to the employer
——————————————————–
https://flamma.helsinki.fi/portal/home/sisalto?_nfpb=true&_pageLabel=content_view&contentId=HY307829&placeId=HY034205

DEPARTMENT OF PHYSICS / HIP JOINT COLLOQUIA / SEMINARS
——————————————————-
Friday 17 January 2014 at 10.15 in A315
Jacek Dobaczewski (Fidipro professor, Jyväskylä) Note day!
TBA
Abstract: TBA

HIP Annual Report
———————–
Please take note of the reporting instructions mailed on Dec. 3rd.

TUHAT database
—————-
Please check in the TUHAT database the status of your publications. Conference papers and scientific activities you are expected to feed in yourself. The refereed articles are taken care of by the library.

VISITORS
——–
A. Bytsenko 17.1. – 13.2. (AT)
B. Goutéraux 20.1. – 21.1. (KK)

HIP NEWS January 7th 2014
============================

HIP Annual Report
———————–
Please take note of the reporting instructions mailed on Dec. 3rd.

TUHAT database
—————-
Please check in the TUHAT database the status of your publications. Conference papers and scientific activities you are expected to feed in yourself. The refereed articles are taken care of by the library.

VISITORS
——–
M. Krssak 2.1. – 10.1. (AV,KK)

HIP NEWS December 16th 2013
============================

HIP Staff News
——————
Matti Kortelainen has received the CMS Achievement and Special Recognition Awards 2013 for his work in performance tool development and studies in the areas of Reconstruction, HLT, and DQM since 2010.

http://cms.web.cern.ch/content/achievement-awards-2013
http://cms-mgt-fps-board.web.cern.ch/cms-mgt-fps-board/awardees.php#RECOGNITION_LIST

HIP congratulates Matti!

HIP Annual Report
———————–
Please take note of the reporting instructions mailed on Dec. 3rd.

DEPARTMENT OF PHYSICS / HIP JOINT COLLOQUIA / SEMINARS
——————————————————-
Tuesday 17 December 2013 at 10.15 in A315
Roshan Foadi (Helsinki)
See web.

HIP NEWS December 9th 2013
============================

HIP STAFF MEETING (YT-MEETING)
—————————————
Time: Tuesday, December 10th, 2013 at 16:00.
Place: CERN, Geneva, Room 13-2-005.

Agenda:
1. Opening of the meeting
2. Election of the secretary of the meeting and two scrutinizers
of the minutes
3. Status report of the Institute
4. The project structure of the Institute in 2014
5. The budget of the Institute for 2014
6. Mobility compensation for 2014
7. Other matters brought up by the staff

DEPARTMENT OF PHYSICS / HIP JOINT COLLOQUIA / SEMINARS
——————————————————-
Tuesday 10 December 2013 at 10.15 in A315
Juha Jäykkä (Nordita)
Isospinning hopfions

Abstract:
The problem of constructing internally rotating solitons of fixed angular frequency omega in the Faddeev-Skyrme model is reformulated as a variational problem for an energy-like functional, called pseudoenergy, which depends parametrically on omega. This problem is solved numerically using a gradient descent method, without imposing any spatial symmetries on the solitons, and the dependence of the solitons’ energy on omega, and on their conserved total isospin J. It is found that, generically, the shape of a soliton is independent of omega, and that its size grows monotonically with omega. A simple elastic rod model of time-dependent hopfions is developed which, despite having only one free parameter, accounts well for most of the numerical results.

VISITORS
———
S. Niyogi 15.9.-15.12 (KH)

HIP NEWS December 2nd 2013
============================

HIP STAFF MEETING (YT-MEETING)
—————————————
Time: Tuesday, December 10th, 2013 at 16:00.
Place: CERN, Geneva, Room 13-2-005.

Agenda:
1. Opening of the meeting
2. Election of the secretary of the meeting and two scrutinizers of the minutes
3. Status report of the Institute
4. The project structure of the Institute in 2014
5. The budget of the Institute for 2014
6. Mobility compensation for 2014
7. Other matters brought up by the staff

PARTICLE PHYSICS SEMINARS
————————–
Venue: A315
Speaker: Stefano Di Chiara
Date: 02/12/2013(Monday)
Time: 14:15 hrs
Stefano will discuss the following paper on Monday (02/12/13).

http://arxiv.org/abs/1308.0295

With regards,
Priyotosh Bandyopadhyay

VISITORS
———
S. Niyogi 15.9.-15.12 (KH)
P. Prešnajder 18.11. – 2.12. (AT)

HIP NEWS November 25th 2013
============================

DEPARTMENT OF PHYSICS / HIP JOINT COLLOQUIA / SEMINARS
——————————————————-
Tuesday 26 November 2013 at 10.15 in A315
Tommi Markkanen (Helsinki)
Applications of Curved Space Field Theory for Scalar Field Models of Inflation

Abstract:
Now in the wake of the Planck mission a demand for improving the predictions of standard
inflationary models has arisen. In this talk I will discuss the inclusion of quantum
corrections in the equations of motion for a scalar matter field present during inflation,
in the framework of curved space field theory. Among the key questions will be how to
perform proper renormalization at the equation of motion level, without referring to an
effective action. I will also present a quantum slow-roll calculation that incorporates the
important infrared effects of dynamical space-time and show how a re-summing of diagrams
cures a potential IR enhancement.

COSMO-Seminar
——————-
Wednesday 27 November 2013 at 14.15 in A315
Jacques Wagstaff (Hamburg)
Amplification of magnetic fields from turbulence in the early Universe

Abstract:
We investigate the turbulent small-scale dynamo mechanism for the amplification of a seed magnetic
field in the radiation era. Velocity perturbations in the primordial plasma are sourced by density perturbations.
On small scales we argue that turbulence becomes fully developed since the Reynolds numbers are
very large and eddy-flows interact effectively. Hence, we demonstrate that the conditions are right for efficient
dynamo amplification leading to large magnetic fields on small scales. Such fields could leave an imprint in
the black-body spectrum of the CMB which might be measurable with forthcoming telescopes such as PIXIE.

VISITORS
———
S. Niyogi 15.9.-15.12 (KH)
P. Prešnajder 18.11. – 2.12. (AT)
J. Wagstaff 25.11. – 29.11. (SN)