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Precision Lattice Calculation of Kao...

Yin, Hantao.

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Precision Lattice Calculation of Kaon Decays with Mobius Domain Wall Fermions.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Precision Lattice Calculation of Kaon Decays with Mobius Domain Wall Fermions./
作者:	Yin, Hantao.
面頁冊數:	179 p.
附註:	Source: Dissertation Abstracts International, Volume: 74-08(E), Section: B.
Contained By:	Dissertation Abstracts International74-08B(E).
標題:	High energy physics. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3559744
ISBN:	9781303050350

Precision Lattice Calculation of Kaon Decays with Mobius Domain Wall Fermions.
Yin, Hantao.

Precision Lattice Calculation of Kaon Decays with Mobius Domain Wall Fermions. - 179 p.

Source: Dissertation Abstracts International, Volume: 74-08(E), Section: B.

Thesis (Ph.D.)--Columbia University, 2013.

This item must not be sold to any third party vendors.

We report our recent development in algorithms and progress in measurements in lattice QCD. The algorithmic development includes the forecasted force gradient integrator, and further theoretical development and implementation of the Mobius domain wall fermions. These new technologies make it practical to simulate large 483 x 96 and 643 x 128 lattice ensembles with (5.5fm)3 boxes and 140MeV pion. The calculation was performed using the Mobius domain wall fermions and the Iwasaki gauge action. Simulated directly at physical quark masses, these ensembles are of great value for our ongoing and future lattice measurement projects.

ISBN: 9781303050350Subjects--Topical Terms:

2144759
High energy physics.

Precision Lattice Calculation of Kaon Decays with Mobius Domain Wall Fermions.
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245 1 0 $a Precision Lattice Calculation of Kaon Decays with Mobius Domain Wall Fermions.
300 $a 179 p.
500 $a Source: Dissertation Abstracts International, Volume: 74-08(E), Section: B.
500 $a Adviser: Robert D. Mawhinney.
502 $a Thesis (Ph.D.)--Columbia University, 2013.
506 $a This item must not be sold to any third party vendors.
520 $a We report our recent development in algorithms and progress in measurements in lattice QCD. The algorithmic development includes the forecasted force gradient integrator, and further theoretical development and implementation of the Mobius domain wall fermions. These new technologies make it practical to simulate large 483 x 96 and 643 x 128 lattice ensembles with (5.5fm)3 boxes and 140MeV pion. The calculation was performed using the Mobius domain wall fermions and the Iwasaki gauge action. Simulated directly at physical quark masses, these ensembles are of great value for our ongoing and future lattice measurement projects.
520 $a With the help of measurement techniques such as the eigCG algorithm and the all mode averaging method, we perform a direct, precise lattice calculation of the semileptonic kaon decay K → pilnu using these newly generated high quality lattice ensembles. Our main result is the form factor f+/-Kp q2 evaluated directly at zero momentum transfer q2 = 0. Free of various systematic errors, this new result can be used to determine the CKM matrix element Vus to a very high precision when combined with experimental input.
520 $a The calculation also provides results for various low energy strong interaction constants such as the pseudoscalar decay constants fK and fpi, and the neutral kaon mixing matrix element BK. These calculations are naturally performed by reusing the propagators calculated for the kaon semileptonic decay mentioned above. So they come with no or very low additional cost. The results allow us to also determine these important low energy constants on the lattice to unprecedented accuracy.
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