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Soft Theorems and Infrared Safety in Four Dimensions
Soft Theorems and Infrared Safety in Four Dimensions
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20250211152726
- ISBN
- 9798384461234
- DDC
- 593.7
- 서명/저자
- Soft Theorems and Infrared Safety in Four Dimensions
- 발행사항
- [Sl] : State University of New York at Stony Brook, 2024
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- 형태사항
- 231 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 86-04, Section: B.
- 주기사항
- Advisor: Sterman, George F.
- 학위논문주기
- Thesis (Ph.D.)--State University of New York at Stony Brook, 2024.
- 초록/해제
- 요약In this thesis we study two questions that are closely related to factorization in perturbative QCD. In the first part we discuss the celebrated Low's theorem, and we will relate the radiative amplitude for the production of a soft photon along with two hard particles, to the non-radiative amplitude for the production of two hard particles. We will extend the theorem to the region where the photon momentum is much larger than the fermion masses, in which the fermions can be treated as effectively massless. We will discuss the radiation from various components of the factorized amplitude and compare it to the naive expectation from Low's theorem. In the second half of this thesis, we will discuss infrared finiteness and Feynman integrals that are manifestly IR finite. While initial-state singularities can be dealt with using IR counterterms, final-state singularities cancel upon summing over cuts. This will be made manifest in time-ordered perturbation theory. We will show that in cancelling these final-state singularities, we are able to recast the amplitude in terms of physical cuts alone.
- 일반주제명
- Particle physics
- 일반주제명
- Applied mathematics
- 일반주제명
- Theoretical physics
- 일반주제명
- Computational physics
- 키워드
- Low's theorem
- 키워드
- Fermions
- 키워드
- Perturbative QCD
- 키워드
- Massless
- 기타저자
- State University of New York at Stony Brook Physics
- 기본자료저록
- Dissertations Abstracts International. 86-04B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■00520250211152726
■006m o d
■007cr#unu||||||||
■020 ▼a9798384461234
■035 ▼a(MiAaPQ)AAI31490261
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a593.7
■1001 ▼aVenkata, Aniruddha Tamma.
■24510▼aSoft Theorems and Infrared Safety in Four Dimensions
■260 ▼a[Sl]▼bState University of New York at Stony Brook▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■300 ▼a231 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 86-04, Section: B.
■500 ▼aAdvisor: Sterman, George F.
■5021 ▼aThesis (Ph.D.)--State University of New York at Stony Brook, 2024.
■520 ▼aIn this thesis we study two questions that are closely related to factorization in perturbative QCD. In the first part we discuss the celebrated Low's theorem, and we will relate the radiative amplitude for the production of a soft photon along with two hard particles, to the non-radiative amplitude for the production of two hard particles. We will extend the theorem to the region where the photon momentum is much larger than the fermion masses, in which the fermions can be treated as effectively massless. We will discuss the radiation from various components of the factorized amplitude and compare it to the naive expectation from Low's theorem. In the second half of this thesis, we will discuss infrared finiteness and Feynman integrals that are manifestly IR finite. While initial-state singularities can be dealt with using IR counterterms, final-state singularities cancel upon summing over cuts. This will be made manifest in time-ordered perturbation theory. We will show that in cancelling these final-state singularities, we are able to recast the amplitude in terms of physical cuts alone.
■590 ▼aSchool code: 0771.
■650 4▼aParticle physics
■650 4▼aApplied mathematics
■650 4▼aTheoretical physics
■650 4▼aComputational physics
■653 ▼aLow's theorem
■653 ▼aFermions
■653 ▼aPerturbative QCD
■653 ▼aMassless
■653 ▼aFinal-state singularities
■690 ▼a0798
■690 ▼a0753
■690 ▼a0216
■690 ▼a0364
■71020▼aState University of New York at Stony Brook▼bPhysics.
■7730 ▼tDissertations Abstracts International▼g86-04B.
■790 ▼a0771
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17163578▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
