天体素粒子物理学特論 Iのレポート課題

Reporting Assignments in
Advanced Astroparticle Physics I
天体素粒子物理学特論 I レポート課題
Tuesday, 12 July, 2016
Section A: Neutrino Physics (Shiozawa)
Section B: Very-High-Energy Gamma-Ray Astrophysics (Yoshikoshi)
Section C: Gravitational Wave Physics (Uchiyama)
ANSWER THREE QUESTIONS IN TOTAL BY CHOOSING ONE OF TWO
QUESTIONS IN ALL THREE SECTIONS.
Use the attached answer sheet. Answer on separate sheet for each sections
A,B,C.
Either Japanese or English answer is acceptable. Books and notes may be
consulted.
Submit your answers to the report box in physics academic office #208 (物理
学専攻教務 208 内) by 13:00 of Friday, 5 August, 2016.
Contact information:
Masato Shiozawa (塩澤眞人): [email protected]
Takanori Yoshikoshi (吉越貴紀): [email protected]
Takashi Uchiyama (内山隆): [email protected]
Section A: Neutrino Physics (Shiozawa)
Question 1
(a) Describe briefly the compelling evidence of neutrino oscillations
discovered in the atmospheric neutrino’s flavor ratio and up/down flux
ratio observed in Super-Kamiokande. Refer to “Evidence for
Oscillation of Atmospheric Neutrinos”, Physical Review Letters, 81,
1562 (1998).
Question 2
(a) Derive the survival probability formula P( ν α → ν α ) in vacuum
assuming two-flavor neutrino oscillations. Use a mixing angle θ ,
mass squared difference Δm2=m22—m21, neutrino energy E, its travel
length L, and the natural unit c = h/(2π) = 1.
Section B: Very-High-Energy Gamma-Ray Astrophysics
(Yoshikoshi)
Question 1
Ø Explain the observation principle and method of ground-based
gamma-ray telescopes detecting atmospheric Cherenkov light.
In particular, describe on the major background events in
gamma-ray observations and the technique to reject them.
Describe in one page of the answer sheet, using numerical
values concretely.
Question 2
Ø In the case that gamma rays were detected from a celestial
source, describe on the method to discriminate if they are of
leptonic or hadronic origin. Describe in one page of the answer
sheet, using numerical values concretely.
Section C: Gravitational Wave Physics (Uchiyama)
Question1
Question 2
Answer sheet (レポート用紙)
FY
semester
Class name
H28
S-semester
Advanced Astroparticle Physics I（天体素粒子物理学特論 I)
School/Department
School year
ID number
Full name
Marktheselectedproblem(選択問題に印をつけよ)：
□SectionA–Q1(Shiozawa 塩澤)□SectionA–Q2(Shiozawa 塩澤)
□SectionB–Q1(Yoshikoshi 吉越)
□SectionB–Q2(Yoshikoshi 吉越)
□SectionC–Q1(Uchiyama 内山)□SectionC–Q2(Uchiyama 内山)
Answer sheet (レポート用紙)
FY
semester
Class name
H28
S-semester
Advanced Astroparticle Physics I（天体素粒子物理学特論 I)
School/Department
School year
ID number
Full name
Marktheselectedproblem(選択問題に印をつけよ)：
□SectionA–Q1(Shiozawa 塩澤)□SectionA–Q2(Shiozawa 塩澤)
□SectionB–Q1(Yoshikoshi 吉越)
□SectionB–Q2(Yoshikoshi 吉越)
□SectionC–Q1(Uchiyama 内山)□SectionC–Q2(Uchiyama 内山)
Answer sheet (レポート用紙)
FY
semester
Class name
H28
S-semester
Advanced Astroparticle Physics I（天体素粒子物理学特論 I)
School/Department
School year
ID number
Full name
Marktheselectedproblem(選択問題に印をつけよ)：
□SectionA–Q1(Shiozawa 塩澤)□SectionA–Q2(Shiozawa 塩澤)
□SectionB–Q1(Yoshikoshi 吉越)
□SectionB–Q2(Yoshikoshi 吉越)
□SectionC–Q1(Uchiyama 内山)□SectionC–Q2(Uchiyama 内山)

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