Results and prospects on kaon physics with the NA62 experiment at CERN

The measurement of the ratio of the rates of leptonic kaon decays performed by NA48/2 and NA62 (RK phase) experiments is presented, together with the description of the NA62 experiment that will start collecting data in 2015 at the CERN SPS with the main goal of measuring the branching ratio(BR) of the rare decay K+ → π+ν¯ν with a precision of 10%

Pengalaman Kegagalan Pada Laki-Laki Dan Perempuan

Situasi sukses dan kegagalan merupakan reperesentasi dari keinginan dan tujuan hidup yang ingin dicapai, perbedaan harapan antara laki-laki dan perempuan akan membuat perbedaan kegagalan. Tujuan penelitian ini adalah untuk mengetahui pengalaman kegagalan pada remaja. Penelitian ini mensurvei 605 (laki-laki : 217, perempuan : 388) orang remaja di tiga perguruan tinggi berbeda di Pekanbaru, dengan menggunakan questioner (pertanyaan) terbuka. Subjek diminta untuk menjawab pertanyaan “pengalaman kegagalan apa yang paling menyakitkan dalam hidup?”, dikembangkan oleh Kim dan Park (2006). Analisis data menggunakan pendekatan Indigenous psychology, dengan kategorisasi, frekuensi, dan cross tabulasi. Penelitian ini menunjukkan bahwa ada lima pengalaman kegagalan pada remaja, yaitu: akademik (48,1%), harapan (17%), hubungan personal (15,9), kompetisi (10,4%), manajemen diri (3,1%). Penelitian ini juga menunjukkan ada perbedaan pengalaman kegagalan antara laki-laki dan perempuan, laki-laki lebih merasa gagal dalam harapan (9,3%) dan kompetisi (6,6%), sedangkan perempuan lebih merasa gagal dalam akademik (36,4%) dan hubungan personal (10,6%). Penelitian ini memberikan pemahaman bahwa perbedaan pengalaman kegagalan antara laki-laki dan perempuan disebabkan oleh adanya perbedaan peran sosial antara laki-laki dan perempuan

Exotic particle searches at NA62

High-intensity setup and detector performance make NA62 particularly suited for searching for new physics in the hidden sector. Sensitivity projections for these researches are reported in this work

Moral Values That Thwart Intergroup Interactions: an Investigation on the Interaction Between Indonesian Moslems and Chinese-Indonesian Christians

As one of the most established theories, the contact hypothesis has been well-researched throughout decades of investigations. However, there have been few attempts to investigate individual factors that may influence interaction processes that may lower prejudice. The present study attempts to find the individual factors that can moderate the contact – prejudice effect, that is, individual moral values. Previous researches have noted that individuals with high moral loyalty, authority, and sanctity may resist interacting with outgroups. Consequently, these individuals may possess higher prejudice. Thus, we hypothesize that individuals with higher levels of those three moral values may experience the contact effect more profoundly, in which there is stronger contact – prejudice effect. 594 Moslem participants participated in the online survey we administered. We found that moral authority and purity can moderate the contact – prejudice effect, consistent with our hypotheses. These patterns were found only for the contact – subtle prejudice effect. However, moral loyalty cannot moderate this effect. We discuss the implications by examining the Indonesian current sociopolitical conditions and how the three moral values influence the dynamics of intergroup contact

CHANTI: a Fast and Efficient Charged Particle Veto Detector for the NA62 Experiment at CERN

The design, construction and test of a charged particle detector made of scintillation counters read by Silicon Photomultipliers (SiPM) is described. The detector, which operates in vacuum and is used as a veto counter in the NA62 experiment at CERN, has a single channel time resolution of 1.14 ns, a spatial resolution of ~2.5 mm and an efficiency very close to 1 for penetrating charged particles

Muon Radiography Investigations in Boreholes with a Newly Designed Cylindrical Detector

Muons are constantly produced in cosmic-rays and reach the Earth surface with a flux of about 160 particles per second per square meter. The abundance of muons with respect to other cosmic particles and their capability to cross dense materials with low absorption rate allow them to be exploited for large scale geological or human-made object imaging. Muon radiography is based on similar principles as X-ray radiography, measuring the surviving rate of muons escaping the target and relating it to the mass distribution inside the object. In the course of decades, after the first application in 1955, the methodology has been applied in several different fields. Muography allows us to measure the internal density distribution of the investigated object, or to simply highlight the presence of void regions by observing any excess of muons. Most of these applications require the detector to be installed below the rock being probed. In case that possible installation sites are not easily accessible by people, common instrumentation cannot be installed. A novel borehole cylindrical detector for muon radiography has been recently developed to deal with these conditions. It has been realized with a cylindrical geometry to fit typical borehole dimensions. Its design maximizes the geometrical acceptance, minimizing the dead spaces by the use of arc-shaped scintillators. The details of the construction and preliminary results of the first usage are described in this paper. © 2022 by the authors