It is currently 11 Dec 2017, 19:57

Close

GMAT Club Daily Prep

Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Close

Request Expert Reply

Confirm Cancel

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

Standard Model of Physics

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

Manager
Manager
avatar
B
Joined: 02 Mar 2017
Posts: 95

Kudos [?]: 35 [0], given: 36

GMAT 1: 700 Q51 V34
Standard Model of Physics [#permalink]

Show Tags

New post 20 Jun 2017, 03:10
Question 1
00:00
A
B
C
D
E

Question Stats:

12% (01:51) correct 88% (02:06) wrong based on 42

HideShow timer Statistics

Question 2
00:00
A
B
C
D
E

Question Stats:

53% (01:45) correct 48% (00:49) wrong based on 40

HideShow timer Statistics

Question 3
00:00
A
B
C
D
E

Question Stats:

30% (00:09) correct 70% (02:18) wrong based on 37

HideShow timer Statistics

Question 4
00:00
A
B
C
D
E

Question Stats:

41% (00:56) correct 59% (04:26) wrong based on 34

HideShow timer Statistics

As scientists developed the Standard Model of physics (the generally accepted framework that explains how subatomic particles interact) in the 1960s and 1970s, they began to ask: How do subatomic particles acquire mass? The Standard Model gave satisfactory results in other areas in which it had been tested, but the mathematics behind the model seemed to prohibit subatomic particles from having any mass at all, which meant that the model was incomplete. Scientists speculated that a mechanism must exist that causes such particles to gain mass, but does not violate the principles of the Standard Model. They theorized that a field known as the Higgs field would allow such a mechanism to function, and that the Higgs field would have an accompanying Higgs boson particle.
In attempting to find this missing mechanism, physicists have focused on the Higgs boson. If experiments prove that the Higgs boson exists, then scientists can be satisfied that this part of the Standard Model is accurate. On the other hand, if results demonstrate that the Higgs boson does not exist, then scientists will need to consider alternative versions of the theory. Finding the Higgs boson, however, has proven challenging. If it were similar to lighter, more commonly found bosons, such as photons, it would be easily identifiable. However, this particle can only be created through highly energetic particle collisions achieved by massive particle accelerators, and even then, such particle collisions are just as likely to produce particles other than the Higgs boson. Further complicating matters, any Higgs bosons that are created will only exist for mere fractions of a second before quickly decaying, which means that rather than studying the particles directly, scientists must analyze the patterns of the decay in order to determine whether the particle was in fact a Higgs boson.
Recent findings have nevertheless been promising. In July 2012, scientists at the European Organization for Nuclear Research announced that they had discovered evidence of a boson with energy and other properties consistent with those predicted for the Higgs boson. While the data is not yet conclusive, if the particle can indeed be shown to be a Higgs boson, then scientists will be able to take the next step of considering whether its characteristics match those predicted by the Standard Model.

Question 1 )Based on the information presented by the author, it can be inferred that if Higgs bosons did not exist
A) the current theory of how particles gain mass would have to be adapted
B) subatomic particles would not be able to gain mass
C) the Standard Model would be proved erroneous
D) scientists would be forced to look for another, lighter particle
E) more experiments using highly energetic particle collisions would have to be conducted

QESTION 2) The primary purpose of the passage is to
A) present a disputed theory and defend its accuracy
B) criticize a conventional model and argue for an alternative theory
C) outline an issue and demonstrate the unlikelihood of resolving it
D) describe a problem and examine its possible solutions
E) contrast two different models and show that one is more accurate

QUESTION 3) The author’s claim that “if experiments prove that the Higgs boson exists, then scientists can be satisfied that this part of the Standard Model is accurate” would be most undermined by the discovery that
A) many subatomic particles produce decay signatures that are similar to those predicted for the Higgs boson
B) in order to create mass, the Higgs field must work with another unidentified mechanism that requires its own accompanying particle
C) Higgs bosons and photons are both highly energetic and can decay very rapidly when created by particle accelerators
D) the particle discovered at the European Center for Nuclear Research has some properties that are not consistent with those predicted for the Higgs boson
E) most collisions created by particle accelerators produce particles other than Higgs bosons, so the probability of discovering the Higgs boson is very low

QUESTION 4 ) According to the passage, if Higgs bosons exist, then they possess all of the following properties EXCEPT
A) a fast decay rate
B) the ability to work in conjunction with the Higgs field
C) a difficulty to be detected if they were created
D) be created by massive particle detectors
E) relatively little mass
[Reveal] Spoiler: Question #1 OA
[Reveal] Spoiler: Question #2 OA
[Reveal] Spoiler: Question #3 OA
[Reveal] Spoiler: Question #4 OA

Kudos [?]: 35 [0], given: 36

Manager
Manager
User avatar
B
Status: Profile 1
Joined: 20 Sep 2015
Posts: 77

Kudos [?]: 17 [0], given: 40

GMAT 1: 690 Q48 V37
GPA: 3.2
WE: Information Technology (Investment Banking)
GMAT ToolKit User
Re: Standard Model of Physics [#permalink]

Show Tags

New post 16 Aug 2017, 06:25
QUESTION 4 ) According to the passage, if Higgs bosons exist, then they possess all of the following properties EXCEPT
A) a fast decay rate
B) the ability to work in conjunction with the Higgs field
C) a difficulty to be detected if they were created
D) be created by massive particle detectors
E) relatively little mass

This question confused a little on the ans option, given the OA as E

but if look at following sentence from passage D also looks promising ans :

"particle can only be created through highly energetic particle collisions achieved by massive particle accelerators,"

Kudos [?]: 17 [0], given: 40

Re: Standard Model of Physics   [#permalink] 16 Aug 2017, 06:25
Display posts from previous: Sort by

Standard Model of Physics

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  


GMAT Club MBA Forum Home| About| Terms and Conditions| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne

Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.