47 research outputs found
A formulation without partial wave decomposition for scattering of spin-1/2 and spin-0 particles
A new technique has been developed to calculate scattering of spin-1/2 and
spin-0 particles. The so called momentum-helicity basis states are constructed
from the helicity and the momentum states, which are not expanded in the
angular momentum states. Thus, all angular momentum states are taken into
account. Compared with the partial-wave approach this technique will then give
more benefit especially in calculations for higher energies. Taking as input a
simple spin-orbit potential, the Lippman-Schwinger equations for the T-matrix
elements are solved and some observables are calculated.Comment: 4 pages, 1 figur
A Spin-Isospin Dependent 3N Scattering Formalism in a 3D Faddeev Scheme
We have introduced a spin-isospin dependent three-dimensional approach for
formulation of the three-nucleon scattering. Faddeev equation is expressed in
terms of vector Jacobi momenta and spin-isospin quantum numbers of each
nucleon. Our formalism is based on connecting the transition amplitude to
momentum-helicity representations of the two-body -matrix and the deuteron
wave function. Finally the expressions for nucleon-deuteron elastic scattering
and full breakup process amplitudes are presented.Comment: 17 page
New Forms of Deuteron Equations and Wave Function Representations
A recently developed helicity basis for nucleon-nucleon (NN) scattering is
applied to th e deuteron bound state. Here the total spin of the deuteron is
treated in such a helicity representation. For the bound state, two sets of two
coupled eigenvalue equations are developed, where the amplitudes depend on two
and one variable, respectively. Numerical illustrations based on the realistic
Bonn-B NN potential are given. In addition, an `operator form' of the deuteron
wave function is presented, and several momentum dependent spin densities are
derived and shown, in which the angular dependence is given analytically.Comment: 19 pages (Revtex), 9 fig
Treatment of Two Nucleons in Three Dimensions
We extend a new treatment proposed for two-nucleon (2N) and three-nucleon
(3N) bound states to 2N scattering. This technique takes momentum vectors as
variables, thus, avoiding partial wave decomposition, and handles spin
operators analytically. We apply the general operator structure of a
nucleon-nucleon (NN) potential to the NN T-matrix, which becomes a sum of six
terms, each term being scalar products of spin operators and momentum vectors
multiplied with scalar functions of vector momenta. Inserting this expansions
of the NN force and T-matrix into the Lippmann-Schwinger equation allows to
remove the spin dependence by taking traces and yields a set of six coupled
equations for the scalar functions found in the expansion of the T-matrix.Comment: 4 pages, Contribution to The 19th International IUPAP Conference on
Few-Body Problems in Physics, 31.08 - 05.09.2009, Bonn, German
The Operator form of 3H (3He) and its Spin Structure
An operator form of the 3N bound state is proposed. It consists of eight
operators formed out of scalar products in relative momentum and spin vectors,
which are applied on a pure 3N spin 1/2 state. Each of the operators is
associated with a scalar function depending only on the magnitudes of the two
relative momenta and the angle between them. The connection between the
standard partial wave decomposition of the 3N bound state and the operator form
is established, and the decomposition of these scalar function in terms of
partial wave components and analytically known auxiliary functions is given.
That newly established operator form of the 3N bound state exhibits the
dominant angular and spin dependence analytically. The scalar functions are
tabulated and can be downloaded. As an application the spin dependent nucleon
momentum distribution in a polarized 3N bound state is calculated to illustrate
the use of the new form of the 3N bound state.Comment: 21 pages, 1 table, 8 figures, revtex
IMPLEMENTASI INPRES NOMOR 3 TAHUN 2022 TENTANG OPTIMALISASI PENYELENGGARAAN KAMPUNG KELUARGA BERKUALITAS DI DESA PLABUHAN KECAMATAN PLANDAAN KABUPATEN JOMBANG
Penelitian ini bertujuan untuk mendeskripsikan dan menganalisis Implementasi Inpres Nomor 3 Tahun 2022 tentang Optimalisasi Penyelenggaraan Kampung Keluarga Berkualitas di Desa Plabuhan, Kecamatan Plandaan, Kabupaten Jombang, serta faktor yang mendukung dan menghambat pelaksanaannya. Penelitian ini menggunakan metode kualitatif dengan pendekatan deskriptif. Hasil penelitian menunjukkan bahwa, Implementasi Inpres No. 3 Tahun 2022 di Desa Plabuhan telah berjalan dengan baik meskipun belum optimal. Adapun faktor pendukung utama adalah tersedianya dukungan sumberdaya, kesesuaian karakteristik dan pembagian wewenang pelaksana kebijakan, serta kondisi sosial ekonomi yang kondusif. Sedangkan faktor penghambat diantaranya belum sesuainya ukuran dan tujuan kebijakan dengan kondisi pelaksana di tingkat desa, belum adanya komunikasi yang efektif antara pelaksana kebijakan dengan masing-masing kementerian/lembaga/ dinas terkait, serta kurangnya motivasi pelaksana kebijakan untuk memahami substansi isi kebijakan yang terdapat didalam Inpres.
Efusi Perikard Hemoragik pada Penderita Leukimia Mielo-Monoblastik Akut
A case of a 23 year-old man with haemorrhagic pericardial effusion has been reported. The man came to the hospital due to chest pain, shortness of breath and fever for 5 days. A pericardial effusion was suggested by observing ECG and chest X-ray, later it was proved by echocardiography. Pericardiocentesis was performed, and 650 cc of haemorrhagic fluid was taken out; his condition im-proved dramatically. Acute leukemia has been suggested as the cause, due to high level of White Blood Count. Diagnosis of Acute Myelomonoblastic Leuke-mia (AML) was confirmed by peripheral blood stain and bone marrow aspiration examination. From patient’s history, physical examination, and other tests, no other diseases could suspected as the cause of this hemorrhagic pericardial effu-sion. Chemotherapy of daunorubicin and cytosine-arabinoside was planned for the treatment, but the patient rejected. He was discharged in relatively good condition although the prognosis is still bad.Dilaporkan kasus efusi perikard hemoragik yang terjadi pada seorang pasien laki-laki berusia 23 tahun. Pasien datang ke rumah sakit dengan keluhan nyeri dada selama lima hari, yang disertai sesak napas dan demam. Efusi perikard pada kasus ini dicurigai berdasarkan hasil gambaran elektrokardiogram dan foto toraks, yang kemudian dibuktikan dengan pemeriksaan ekokardiografi. Tindakan perikardiosentesis dilakukan dengan hasil cairan yang hemoragis sebanyak 650 cc. Pasca tindakan keluhan nyeri dada dan sesak napas sangat berkurang. Kecurigaan terhadap leukemia akut sebagai penyebab timbul, karena jumlah lekosit darah sangat meningkat. Diagnosis pasti suatu leukemia mielo-monoblastik akut (LMA) ditegakkan berdasarkan pemeriksaan hapusan darah tepi dan aspirasi sumsum tulang. Penyebab efusi perikard hemoragik pada kasus ini adalah LMA, karena baik dari anamnesis, pemeriksaan fisik maupun pemeriksaan penunjang yang telah dilakukan, tidak ditemukan adanya penyebab lain yang memungkinkan. Direncanakan pemberian kemoterapi berupa daunorubicin dan sitosin-arabinoside, tetapi penderita menolak. Penderita meninggalkan rumah sakit dalam keadaan relatif baik, namun prognosisnya jelek