東華大學圖書館 |

Language: English

Help

回圖書館首頁

手機版館藏查詢

Back

Switch To: Labeled | MARC Mode | ISBD

Production of cold antihydrogen duri...

Bowden, Nathaniel Sean.

Linked to FindBook

Google Book

Amazon

博客來

Production of cold antihydrogen during the positron cooling of antiprotons.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Production of cold antihydrogen during the positron cooling of antiprotons./
Author:	Bowden, Nathaniel Sean.
Description:	207 p.
Notes:	Source: Dissertation Abstracts International, Volume: 65-01, Section: B, page: 0259.
Contained By:	Dissertation Abstracts International65-01B.
Subject:	Physics, Atomic. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3117972
ISBN:	0496653962

Production of cold antihydrogen during the positron cooling of antiprotons.
Bowden, Nathaniel Sean.

Production of cold antihydrogen during the positron cooling of antiprotons. - 207 p.

Source: Dissertation Abstracts International, Volume: 65-01, Section: B, page: 0259.

Thesis (Ph.D.)--Harvard University, 2004.

The production of cold antihydrogen is one of several significant advances made towards a precision comparison of hydrogen and antihydrogen. New and improved accumulation and manipulation techniques make large numbers of electrons, positrons, and antiprotons routinely available for interaction experiments. This has allowed an extensive study of the interaction of antiprotons with positrons in a nested Penning trap to be conducted. Measurements of the rate at which positrons cool the axial motion of antiprotons allow the determination of a fundamental cutoff parameter central to a theoretical description of this process. The theory can then be used to determine parameters important to the recombination of positrons and antiprotons to form anti-hydrogen. Unexpected antiproton cooling and loss is observed in the nested Penning trap, even without positrons being present. This loss, which remains unexplained, has serious consequences for antihydrogen detection schemes based upon the detection of simultaneous positron and antiproton annihilations. Consequently, a completely unambiguous and background free antihydrogen detection method is employed to verify that antihydrogen is produced during the positron cooling of antiprotons.

ISBN: 0496653962Subjects--Topical Terms:

1029235
Physics, Atomic.

Production of cold antihydrogen during the positron cooling of antiprotons.
LDR:02103nmm 2200265 4500 001 1844120
005 20051017073436.5
008 130614s2004 eng d
020 $a 0496653962
035 $a (UnM)AAI3117972
035 $a AAI3117972
040 $a UnM $c UnM
100 1 $a Bowden, Nathaniel Sean. $3 1932323
245 1 0 $a Production of cold antihydrogen during the positron cooling of antiprotons.
300 $a 207 p.
500 $a Source: Dissertation Abstracts International, Volume: 65-01, Section: B, page: 0259.
500 $a Adviser: Gerald Gabrielse.
502 $a Thesis (Ph.D.)--Harvard University, 2004.
520 $a The production of cold antihydrogen is one of several significant advances made towards a precision comparison of hydrogen and antihydrogen. New and improved accumulation and manipulation techniques make large numbers of electrons, positrons, and antiprotons routinely available for interaction experiments. This has allowed an extensive study of the interaction of antiprotons with positrons in a nested Penning trap to be conducted. Measurements of the rate at which positrons cool the axial motion of antiprotons allow the determination of a fundamental cutoff parameter central to a theoretical description of this process. The theory can then be used to determine parameters important to the recombination of positrons and antiprotons to form anti-hydrogen. Unexpected antiproton cooling and loss is observed in the nested Penning trap, even without positrons being present. This loss, which remains unexplained, has serious consequences for antihydrogen detection schemes based upon the detection of simultaneous positron and antiproton annihilations. Consequently, a completely unambiguous and background free antihydrogen detection method is employed to verify that antihydrogen is produced during the positron cooling of antiprotons.
590 $a School code: 0084.
650 4 $a Physics, Atomic. $3 1029235
690 $a 0748
710 2 0 $a Harvard University. $3 528741
773 0 $t Dissertation Abstracts International $g 65-01B.
790 1 0 $a Gabrielse, Gerald, $e advisor
790 $a 0084
791 $a Ph.D.
792 $a 2004
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3117972