國立高雄大學圖資館 |

語系: 繁體中文

說明(常見問題)

圖資館首頁

登入

回首頁

切換: 標籤 | MARC模式 | ISBD

Measurements of CP-violating asymmet...

Danielson, Morris Nicholas.

Measurements of CP-violating asymmetries and branching fractions in the decays of B mesons to charged pions and kaons at the Babar detector.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Measurements of CP-violating asymmetries and branching fractions in the decays of B mesons to charged pions and kaons at the Babar detector.
作者:	Danielson, Morris Nicholas.
面頁冊數:	160 p.
附註:	Adviser: Stew Smith.
附註:	Source: Dissertation Abstracts International, Volume: 66-08, Section: B, page: 4290.
Contained By:	Dissertation Abstracts International66-08B.
標題:	Physics, Elementary Particles and High Energy.
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3188621
ISBN:	9780542306938

Measurements of CP-violating asymmetries and branching fractions in the decays of B mesons to charged pions and kaons at the Babar detector.
Danielson, Morris Nicholas.

Measurements of CP-violating asymmetries and branching fractions in the decays of B mesons to charged pions and kaons at the Babar detector. - 160 p.

Adviser: Stew Smith.

Thesis (Ph.D.)--Princeton University, 2005.

The results are obtained from a data sample of 227 million decays of the &Ugr;(4S) to B0 B¯z collected between 1999 and 2004 with the Babar detector at the PEP-II asymmetric B factory located at the Stanford Linear Accelerator Center.

ISBN: 9780542306938Subjects--Topical Terms:

227490
Physics, Elementary Particles and High Energy.

Measurements of CP-violating asymmetries and branching fractions in the decays of B mesons to charged pions and kaons at the Babar detector.
LDR:02654nmm _2200277 _450 001 170825
005 20061228142255.5
008 090528s2005 eng d
020 $a 9780542306938
035 $a 00242855
040 $a UnM $c UnM
100 0 $a Danielson, Morris Nicholas. $3 244856
245 1 0 $a Measurements of CP-violating asymmetries and branching fractions in the decays of B mesons to charged pions and kaons at the Babar detector.
300 $a 160 p.
500 $a Adviser: Stew Smith.
500 $a Source: Dissertation Abstracts International, Volume: 66-08, Section: B, page: 4290.
502 $a Thesis (Ph.D.)--Princeton University, 2005.
520 # $a The results are obtained from a data sample of 227 million decays of the &Ugr;(4S) to B0 B¯z collected between 1999 and 2004 with the Babar detector at the PEP-II asymmetric B factory located at the Stanford Linear Accelerator Center.
520 # $a This dissertation describes the measurement of branching fractions and CP asymmetries in neutral B meson decays to charmless two-body final states of charged pions and kaons. CP violation is a poorly-constrained phenomenon in the Standard Model (SM) of particle physics and had been studied only in the kaon system before the Babar and Belle experiments. The decay of the neutral B meson to charged pions and kaons is particularly useful for the study of CP violation because they can be related to the Unitarity Triangle angle alpha.
520 # $a We use an extended maximum likelihood technique that incorporates kinematic, event-shape, and particle identification information to measure the branching fractions of the neutral B meson to pipi, Kpi. These branching fractions are found to be (5.6 +/- 0.4 +/- 0.3) x 10-6 and (19.2 +/- 0.6 +/- 0.6) x 10 -6 respectively. The decay to KK is found to have a branching fraction of less than 0.4 x 10-6 at the 90% confidence level. We also measure the direct CP-violating asymmetry between decays to K+pi- and K-pi+ to be -0.133 +/- 0.030 +/- 0.009. Decay time information and b quark flavor information are then added to determine the time-dependent CP violation parameters S and C, which we find to be -0.30 +/- 0.17 +/- 0.03 and -0.09 +/- 0.15 +/- 0.04, respectively. For all measurements above the first error is statistical and the second is systematic.
590 $a School code: 0181.
650 # 0 $a Physics, Elementary Particles and High Energy. $3 227490
690 $a 0798
710 0 # $a Princeton University. $3 212488
773 0 # $g 66-08B. $t Dissertation Abstracts International
790 $a 0181
790 1 0 $a Smith, Stew, $e advisor
791 $a Ph.D.
792 $a 2005
856 4 0 $u http://libsw.nuk.edu.tw:81/login?url=http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3188621 $z http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3188621