A simple determination of the halo size from<sup>10</sup>Be/<sup>9</sup>Be data
نویسندگان
چکیده
Context. The AMS-02 and HELIX experiments should soon provide 10 Be/ 9 Be cosmic-ray data of unprecedented precision. Aims. We propose an analytical formula to quickly accurately determine L from these data. Methods. Our is validated against the full calculation performed with propagation code USINE . compare constraints on set by Be/B Be, relying updated sets production cross-sections. Results. best-fit shifted 5 kpc 3.8 when using obtained consistent results analysis , = ?1.6 +2.8 (data cross-section uncertainties), simplified formula, 4.7 ± 0.6 uncertainties) ±2 (cross-section kpc. indicates that improvements thanks future will be limited uncertainties, unless either measurements are extended up several tens GeV/n, or nuclear for improved; new cross section 16 O into isotopes above a few GeV/n especially desired.
منابع مشابه
a study on insurer solvency by panel data model: the case of iranian insurance market
the aim of this thesis is an approach for assessing insurer’s solvency for iranian insurance companies. we use of economic data with both time series and cross-sectional variation, thus by using the panel data model will survey the insurer solvency.
Determination of the Size of a Trial, Using Lindley’s Method
Extended Abstract. When a new treatment is being considered, trials are carried out to estimate the increase in performance which is likely to result if the new treatment were to replace the treatment in current use. Many authors have looked at this problem and many procedures have been introduced to solve it. An important feature of the analysis in this work is that account is taken of the fac...
متن کاملthe innovation of a statistical model to estimate dependable rainfall (dr) and develop it for determination and classification of drought and wet years of iran
آب حاصل از بارش منبع تأمین نیازهای بی شمار جانداران به ویژه انسان است و هرگونه کاهش در کم و کیف آن مستقیماً حیات موجودات زنده را تحت تأثیر منفی قرار می دهد. نوسان سال به سال بارش از ویژگی های اساسی و بسیار مهم بارش های سالانه ایران محسوب می شود که آثار زیان بار آن در تمام عرصه های اقتصادی، اجتماعی و حتی سیاسی- امنیتی به نحوی منعکس می شود. چون میزان آب ناشی از بارش یکی از مولفه های اصلی برنامه ...
15 صفحه اولA Simple Rule of Thumb for Election Audit Size Determination
This note proposes a very simple “Rule of Thumb” for determining how many precincts to audit in a postelection audit. This rule says to audit
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Astronomy and Astrophysics
سال: 2022
ISSN: ['0004-6361', '1432-0746']
DOI: https://doi.org/10.1051/0004-6361/202243546