＜＜＜「@」を「__AT__」に置き換えています＞＞＞

Date: Fri, 10 Apr 2026 10:12:00 +0900
To: 素粒子論グループメーリングリスト (sg-l) 
Subject: [Sg-l:10265] セミナー (Xavier Roca-Maza 氏: 2026-04-15 東大)
From: Tomoya Naito (Sg-l 経由) 

素粒子論グループのみなさま

東京大学の内藤です.
直前の連絡となり申し訳ありませんが, 4月15日に東京大学で開催の,
Xavier Roca-Maza 氏 (U. Barcelona) のセミナーをご案内いたします.
オンライン配信はありませんが, 多くの方のご参加をお待ちしております.

内藤

=====

Speaker: Prof. Xavier Roca-Maza (Departament de Física Quàntica i
Astrofísica, Universitat de Barcelona)
Title: The neutron skin thickness in atomic nuclei
Time: 10:30–12:00, 15 April 2026 (Wed.)
Venue: Meeting Room 1 (First Floor), Engineering Building No.8, Hongo
Campus, The University of Tokyo

In this talk I will discuss different theoretical analysis of some selected
experimental data on low-energy nuclear observables—such as the dipole
polarizability [1–3], the parity violating asymmetry [2–5] or the
excitation energy of the Isobaric Analog State [6]—that give access to the
neutron skin thickness in medium and heavy nuclei. These measurements are
complementary to the recent extraction of the neutron skin thickness using
high-energy heavy ion collisions [7].

[1] X. Roca-Maza, X. Viñas, M. Centelles, B. K. Agrawal, G. Colò, N. Paar,
J. Piekarewicz, and D. Vretenar. Phys. Rev. C 92, 064304 (2015).
[2] P.-G. Reinhard, X. Roca-Maza, W. Nazarewicz. Phys. Rev. Lett. 127,
232501 (2021).
[3] P.-G. Reinhard, X. Roca-Maza, W. Nazarewicz. Phys. Rev. Lett. 129,
232501 (2022).
[4] X. Roca-Maza, M. Centelles, X. Viñas, and M. Warda. Phys. Rev. Lett.
106, 252501 (2011).
[5] X. Roca-Maza and D. H. Jakubassa-Amundsen. Phys. Rev. Lett. 134, 192501
(2025).
[6] X. Roca-Maza, G. Colò, and H. Sagawa. Phys. Rev. Lett. 120, 202501
(2018).
[7] G. Giacalone, G. Nijs, and W. van der Schee. Phys. Rev. Lett. 131,
202302 (2023).

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Tomoya Naito (内藤 智也)

tnaito__AT__g.ecc.u-tokyo.ac.jp
tnaito__AT__ribf.riken.jp
tomoya.naito__AT__gmail.com

https://ribf.riken.jp/~tnaito/
https://ithems.riken.jp/ja/members/tomoya-naito

Graduate School of Engineering, The University of Tokyo, JAPAN
RIKEN Center for Interdisciplinary Theoretical and Mathematical Sciences
(iTHEMS), JAPAN
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Date: Thu, 18 Jun 2026 02:34:00 +0200
To: 素粒子論グループメーリングリスト (sg-l) 
Subject: [Sg-l:10452] セミナー (Giampaolo Co' 氏: 2026-06-30 オンライン)
From: Tomoya Naito (Sg-l 経由) 

素粒子論グループのみなさま

東京大学の内藤です.
6月30日にオンラインにて開催の, Giampaolo Co’ 氏 (Università del Salento) のセミナーをご案内いたします.
多くの方のご参加をお待ちしております.

内藤

=====

Speaker: Prof. Giampaolo Co' (Università del Salento)

Title: Correlations in nuclei

Time and date: 17:00–18:30 (JST), 30 June 2026 (Tue.)

Zoom:

https://u-tokyo-ac-jp.zoom.us/j/87126625720?pwd=aNboY5CD4Vy8bkXPbEpLEaxoqWNKjb.1
        ID: 871 2662 5720
        Password: 753662

Abstract
In this talk, I discuss the role of correlations in the description of
nuclear systems.
I first provide a precise definition of what is meant by correlation and
then distinguish between short-range and long-range correlations.
The former are associated with the nucleon–nucleon interaction, while the
latter arise from collective excitations of the nucleus.

I briefly introduce two theoretical frameworks: the Fermi Hypernetted Chain
(FHNC) theory for the treatment of short-range correlations
and the Random Phase Approximation (RPA) for the description of collective
nuclear excitations.
I then propose a simplified model that combines these two approaches and
present the results obtained for the description of the density
distributions of calcium isotopes.

=========================================================================
Tomoya Naito (内藤 智也)

tnaito__AT__g.ecc.u-tokyo.ac.jp
tnaito__AT__ribf.riken.jp
tomoya.naito__AT__gmail.com

https://ribf.riken.jp/~tnaito/
https://ithems.riken.jp/ja/members/tomoya-naito

Graduate School of Engineering, The University of Tokyo, JAPAN
RIKEN Center for Interdisciplinary Theoretical and Mathematical Sciences
(iTHEMS), JAPAN
=========================================================================