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PWA Workshop, Zagreb '05
IRB: Bijenička 54, HR-10000 Zagreb. tel: +385 (0)1 4561-111, fax: 4680-084, PR: 4571-269, mail: info@irb.hr
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Introduction

The 2nd International
Pion-Nucleon PWA Workshop


Rudjer Boskovic Institute, Zagreb, Croatia 2005

From the 27th of June ...
... to the 2nd of July.

Photo by Soya.

We would like to draw your attention to our initiative to form a small group for the pion-nucleon partial wave analysis first expressed on the Workshop in Abilene last summer:

1st PWA Workshop

This year we proceed with the idea by organizing the Second workshop on PWA in Zagreb. Most of the people who attended the Abilene Workshop are going to spend a week in Zagreb this summer (starting with the 27th June) to exchange last year’s experience and plan possible future actions.

The scope of the workshop (so far):

a) A further development of unitary, analytic, coupled channel PWA

b) The significance of analyticity

c) The importance of recent and the need for future piN experiments

Barion Spectroscopy at Fermilab

d) Is SES a good representation of experimental data?

e) Improvement of Zagreb codes; inclusion of additional channels

f) The treatment of background

g) Pole positions and resonance parameter extraction

Organizers

International steering committee:

Prof. Michael E. Sadler (ACU)

Prof. Jugoslav Stahov (UT)

Dr. Alfred Svarc (RBI)

Organizing committee:

Sasa Ceci (RBI)

Branimir Zauner (RBI)

Igor Tabak (outside pair of helping hands)

List of participants

List of participants:

Richard Arndt (George Washington University)

Sasa Ceci (Rudjer Boskovic Institute)

Miroslav Furic (University of Zagreb)

Mirza Hadzimehmedovic (University of Tuzla)

Milorad Korolija (Rudjer Boskovic Institute)

Darko Mekterovic (Rudjer Boskovic Institute)

Hedim Osmanovic (University of Tuzla)

Pekko Piirola (Helsinki University)

Michael E. Sadler (Abilene Christian University)

Jugoslav Stahov (University of Tuzla)

Ivan Supek (Rudjer Boskovic Institute)

Alfred Svarc (Rudjer Boskovic Institute)

Shon Watson (Abilene Christian University)

Branimir Zauner (Rudjer Boskovic Institute)

Accomodation

Accommodation details (preliminary):

Please contact us for your accommodation. More details, and maps will be given shortly. Prices are for single room.

Hotel Dubrovnik, ****, $ 140 (Euro 110)

Hotel Central , ***, $ 105 (Euro 83)

We have managed to arrange free accommodation for all students.

Schedule
Presentations from the workshop can also be found in the pull-down menu in the top-left area of the web page.

Monday

Time Place Presenter Title of talk
9:30-10:30 3rd wing Alfred Svarc "The proposal for the general scheme to incorporate pion-nucleon inelastic channels into the coupled-channel formalism"
10:30-11:00 3rd wing Coffee break
11:00-12:00 3rd wing Richard Arndt "An overview of the GWU analysis program"
12:00-13:00 3rd wing Sasa Ceci "The analytic procedure for the extraction of T-matrix poles in the coupled-channel formalism"
13:00-15:00 Institute Restaurant Lunch break
15:00-19:00 van de Graaf computing, fitting, minimizing, pole-extracting, sightseeing….

Tuesday

Time Place Presenter Title of talk
09:00-10:00 3rd wing Richard Arndt "Extracting poles and resonances from the GWU partial waves"
10:00-11:00 3rd wing Coffee break
11:00-12:00 3rd wing Sasa Ceci "The influence of inelastic data upon T-matrix pole position"
12:00-13:00 3rd wing Branimir Zauner "The influence of pi N --> K Lambda data on the P11 poles"
13:00-15:00 Institute Restaurant Lunch break
15:00-19:00 van de Graaf PANNEL DISCUSSION: "The search for T-matrix poles in K-matrix and T-matrix formalisms"

Wednesday

Time Place Presenter Title of talk
09:00-10:00 1st wing Michael E. Sadler "Call for a new determination of the P11 (Roper) resonance parameters"
10:00-11:00 1st wing Coffee break
11:00-12:00 1st wing Milorad Korolija "K-short and Lambda production from pi- A reactions"
12:00-13:00 1st wing Darko Mekterovic "Differential cross-section for the reaction pi- p --> pi0 n in the momentum range from 105 MeV/c to 180 MeV/c"
13:00-15:00 Institute Restaurant Lunch break
15:00-18:00 van de Graaf computing, fitting, minimizing, pole-extracting
18:00-??:00 City of Zagreb ORGANIZED TOUR

Thursday

Time Place Presenter Title of talk
09:00-10:00 3rd wing Jugoslav Stahov "pi pi --> N Nbar partial waves at t > 4m**2"
10:00-11:00 3rd wing Coffee break
11:00-12:00 3rd wing Shon Watson "Implementation of Fixed-t Analyticity in Partial Wave Analysis"
12:00-13:00 3rd wing Pekko Piirola "Introduction to Helsinki PWA"
13:00-15:00 Institute Restaurant Lunch break
15:00-18:00 van de Graaf PANNEL DISCUSSION: "The importance and the constraining role of analyticity"
18:00-??:00 Hills around Zagreb WORKSHOP BARBECUE – "BURNING SOME SAUSAGES IN THE HILLS"

Friday

Time Place Presenter Title of talk
09:00-10:00 3rd wing Richard Arndt "Least-squared fitting a renormalizeable (e.g. piN) data base"
10:00-11:00 3rd wing Coffee break
11:00-12:00 3rd wing Jugoslav Stahov "The piN sigma term - some new results"
12:00-13:00 3rd wing Pekko Piirola "Progress Report of Helsinki Fixed-t Analysis"
13:00-14:30 Institute Restaurant Lunch break
14:30-15:30 3rd wing Richard Arndt "Resonances from a different perscpective"
15:30-16:30 3rd wing Alfred Svarc "Closing argument"
Logistic and touristic info

Temperatures at the end of the June in Zagreb range from 20 - 35 deg C (that is 68 - 95 deg F).
The temeprature is usually accompanied with high humidity.
Rain is unlikely, but can happen and if it happens, it is usually just a brief and warm shower.

Map of Zagreb center will be available on site (and in hotels).
Electronic map is available here as well as some tourist info.

If you have any idea what else you would like to know, feel free to ask us.

Support

We are thankful for the support given to our Workshop:

And very special thanks to our Zdenka and Ljiljana
without whose help this Workshop would not go that smooth.