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Study of B meson decays to proton an...

Hryn'ova, Tetiana B.

Study of B meson decays to proton antiproton (h) final states.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Study of B meson decays to proton antiproton (h) final states.
作者:	Hryn'ova, Tetiana B.
面頁冊數:	147 p.
附註:	Advisers: Rafe H. Schindler; Peter C. Kim.
附註:	Source: Dissertation Abstracts International, Volume: 67-03, Section: B, page: 1495.
Contained By:	Dissertation Abstracts International67-03B.
標題:	Physics, Elementary Particles and High Energy.
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3209002
ISBN:	9780542571152

Study of B meson decays to proton antiproton (h) final states.
Hryn'ova, Tetiana B.

Study of B meson decays to proton antiproton (h) final states. - 147 p.

Advisers: Rafe H. Schindler; Peter C. Kim.

Thesis (Ph.D.)--Stanford University, 2006.

An enhancement at low pp¯ mass is observed in all the B → pp¯h modes, and its shape is compared between the decay modes and with the shape of the time-like proton form factor. A Dalitz plot asymmetry in B → pp¯K+ mode suggests dominance of the penguin amplitude in this decay and disfavors the possibility that the low mass pp¯ enhancement originates from the presence of a resonance below threshold (such as the recently seen baryonium candidate at 1835 MeV/ c2).

ISBN: 9780542571152Subjects--Topical Terms:

227490
Physics, Elementary Particles and High Energy.

Study of B meson decays to proton antiproton (h) final states.
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245 1 0 $a Study of B meson decays to proton antiproton (h) final states.
300 $a 147 p.
500 $a Advisers: Rafe H. Schindler; Peter C. Kim.
500 $a Source: Dissertation Abstracts International, Volume: 67-03, Section: B, page: 1495.
502 $a Thesis (Ph.D.)--Stanford University, 2006.
520 # $a An enhancement at low pp¯ mass is observed in all the B → pp¯h modes, and its shape is compared between the decay modes and with the shape of the time-like proton form factor. A Dalitz plot asymmetry in B → pp¯K+ mode suggests dominance of the penguin amplitude in this decay and disfavors the possibility that the low mass pp¯ enhancement originates from the presence of a resonance below threshold (such as the recently seen baryonium candidate at 1835 MeV/ c2).
520 # $a B mesons are unique among well-established non-quarkonium mesons in their ability to decay into baryons. Baryonic B decays offer a wide range of interesting areas of study: they can be used to test our theoretical understanding of rare decay processes involving baryons, search for direct CP violation and study low-energy QCD.
520 # $a The distribution of the three final-state particles is of particular interest since it provides dynamical information on the possible presence of exotic intermediate states such as the hypothetical pentaquark states theta* ++ and theta+ in the mpK+ and mpK0S spectra, respectively, or glueball states (such as the tensor glueball fJ(2220)) in the mpp¯ spectrum. No evidence for exotic states is found and upper limits on the branching fractions are set.
520 # $a This thesis presents measurements of branching fractions and a study of the decay dynamics of the charmless three-body decays of B meson into pp¯h, final states, where h = pi+, K+, K0S , K*0 or K* +. With a sample of 232 million Upsilon(4S) → BB¯ events collected with the BaBar detector, we report the first observation of the B → pp¯K* 0 decay, and provide improved measurements of branching fractions of the other modes.
520 # $a We also identify decays of the type B → Xcc¯h → pp¯h, where h = K+, K0S , K*0 or K* +, and Xcc¯ = eta c or J/psi. In particular, we report on the evidence of the B → etacK* + decay and provide a measurement of the width of eta c.
590 $a School code: 0212.
650 # 0 $a Physics, Elementary Particles and High Energy. $3 227490
690 $a 0798
710 0 # $a Stanford University. $3 212607
773 0 # $g 67-03B. $t Dissertation Abstracts International
790 $a 0212
790 1 0 $a Kim, Peter C., $e advisor
790 1 0 $a Schindler, Rafe H., $e advisor
791 $a Ph.D.
792 $a 2006
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